Term
A common side effects of INF treatment is? |
|
Definition
|
|
Term
Antimicrobial prophylaxis for a history of recurrent UTIs |
|
Definition
|
|
Term
Antimicrobial prophylaxis for Gonorrhea |
|
Definition
|
|
Term
Antimicrobial prophylaxis for Meningococcal infection |
|
Definition
Rifampin (DOC), minocycline |
|
|
Term
Antimicrobial prophylaxis for PCP |
|
Definition
TMP-SMZ (DOC), aerosolized pentamidine |
|
|
Term
Antimicrobial prophylaxis for Syphilis |
|
Definition
|
|
Term
Are Aminoglycosides Teratogenic? |
|
Definition
|
|
Term
Are Ampicillin and Amoxicillin penicillinase resistant? |
|
Definition
|
|
Term
Are Carbenicillin, Piperacillin, and Ticarcillin penicillinase resistant? |
|
Definition
|
|
Term
Are Cephalosporins resistant to penicillinase? |
|
Definition
No, but they are less susceptible than the other Beta lactams |
|
|
Term
Are Methicillin, Nafcillin, and Dicloxacillin penicillinase resistant? |
|
Definition
|
|
Term
Clinical use of Isoniazid (INH)? |
|
Definition
Mycobacterium tuberculosis, the only agent used as solo prophylaxis against TB |
|
|
Term
Common side effects associated with Clindamycin include? |
|
Definition
Pseudomembranous colitis (C. difficile), fever, diarrhea |
|
|
Term
Common toxicities associated with Fluoroquinolones? |
|
Definition
GI upset, Superinfections, Skin rashes, Headache, Dizziness |
|
|
Term
Common toxicities associated with Griseofulvin are…...? |
|
Definition
Teratogenic, Carcinogenic, Confusion, Headaches |
|
|
Term
Describe the MOA of Interferons (INF) |
|
Definition
Glycoproteins from leukocytes that block various stages of viral RNA and DNA synthesis |
|
|
Term
Do Tetracyclines penetrate the CNS? |
|
Definition
|
|
Term
Does Ampicillin or Amoxicillin have a greater oral bioavailability? |
|
Definition
AmOxicillin has greater Oral bioavailability |
|
|
Term
Does Amprotericin B cross the BBB? |
|
Definition
|
|
Term
Does Foscarnet require activation by a viral kinase? |
|
Definition
|
|
Term
|
Definition
|
|
Term
Ganciclovir associated toxicities? |
|
Definition
Leukopenia, Neutropenia, Thrombocytopenia, Renal toxicity |
|
|
Term
How are INFs used clinically? |
|
Definition
Chronic Hepatitis A and B, Kaposi's Sarcoma |
|
|
Term
How are Sulfonamides employed clinically? |
|
Definition
Gram +, Gram -, Norcardia, Chlamydia |
|
|
Term
How are the HIV drugs used clinically? |
|
Definition
Triple Therapy' 2 Nucleoside RT Inhibitors with a Protease Inhibitor |
|
|
Term
How are the Latent Hypnozoite (Liver) forms of Malaria (P. vivax, P.ovale) treated? |
|
Definition
|
|
Term
How can Isoniazid (INH)- induced neurotoxicity be prevented? |
|
Definition
Pyridoxine (B6) administration |
|
|
Term
How can the t1/2 of INH be altered? |
|
Definition
Fast vs. Slow Acetylators |
|
|
Term
How can the toxic effects fo TMP be ameliorated? |
|
Definition
With supplemental Folic Acid |
|
|
Term
How can Vancomycininduced 'Red Man Syndrome' be prevented? |
|
Definition
Pretreat with antihistamines and a slow infusion rate |
|
|
Term
How do Sulfonamides act on bacteria? |
|
Definition
As PABA antimetabolites that inhibit Dihydropteroate Synthase, Bacteriostatic |
|
|
Term
How do the Protease Inhibitors work? |
|
Definition
Inhibt Assembly of new virus by Blocking Protease Enzyme |
|
|
Term
How does Ganciclovir's toxicity relate to that of Acyclovir? |
|
Definition
Ganciclovir is more toxic to host enzymes |
|
|
Term
How does resistance to Vancomycin occur? |
|
Definition
With an amino acid change of D-ala D-ala to D-ala Dlac |
|
|
Term
How is Acyclovir used clinically? |
|
Definition
HSV, VZV, EBV, Mucocutaneous and Genital Herpes Lesions, Prophylaxis in Immunocompromised pts |
|
|
Term
How is Amantadine used clinically? |
|
Definition
Prophylaxis for Influenza A, Rubella ; Parkinson's disease |
|
|
Term
How is Amphotericin B administered for fungal meningitis? |
|
Definition
|
|
Term
How is Amphotericin B used clinically? |
|
Definition
Wide spectrum of systemic mycoses: Cryptococcus, Blastomyces, Coccidioides, Aspergillus, Histoplasma, Candida, Mucor |
|
|
Term
How is Chloramphenical used clinically? |
|
Definition
Meningitis (H. influenza, N. meningitidis, S. pneumoniae), Conserative treatment due to toxicities |
|
|
Term
How is Foscarnet used clinically? |
|
Definition
CMV Retinitis in IC pts when Ganciclovir fails |
|
|
Term
How is Ganciclovir activated? |
|
Definition
Phosphorylation by a Viral Kinase |
|
|
Term
How is Ganciclovir used clinically? |
|
Definition
CMV, esp in Immunocompromised patients |
|
|
Term
How is Griseofulvin used clinically? |
|
Definition
Oral treatment of superficial infections |
|
|
Term
How is Leishmaniasis treated? |
|
Definition
|
|
Term
How is Ribavirin used clinically? |
|
Definition
|
|
Term
How is Rifampin used clinically? |
|
Definition
1. Mycobacterium tuberculosis 2. Delays resistance to Dapsone when used of Leprosy 3. Used in combination with other drugs |
|
|
Term
How is Trimethoprim used clinically? |
|
Definition
Used in combination therapy with SMZ to sequentially block folate synthesis |
|
|
Term
How is Vancomycin used clinically? |
|
Definition
For serious, Gram + multidrug-resistant organisms |
|
|
Term
How would you treat African Trypanosomiasis (sleeping sickness)? |
|
Definition
|
|
Term
In what population does Gray Baby Syndrome occur? Why? |
|
Definition
Premature infants, because they lack UDP-glucuronyl transferase |
|
|
Term
Is Aztreonam crossallergenic with penicillins? |
|
Definition
|
|
Term
Is Aztreonam resistant to penicillinase? |
|
Definition
|
|
Term
Is Aztreonam usually toxic? |
|
Definition
|
|
Term
Is Imipenem resistant to penicillinase? |
|
Definition
|
|
Term
Is Penicillin penicillinase resistant? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
Foscarnet = pyroFosphate analog |
|
|
Term
MOA for Penicillin (3 answers)? |
|
Definition
1)Binds penicillin-binding proteins 2) Blocks transpeptidase crosslinking of cell wall 3) Activates autolytic enzymes |
|
|
Term
MOA: Bactericidal antibiotics |
|
Definition
Penicillin, Cephalosporins, Vancomycin, Aminoglycosides, Fluoroquinolones, Metronidazole |
|
|
Term
MOA: Block cell wall synthesis by inhib. Peptidoglycan crosslinking (7) |
|
Definition
Penicillin, Ampicillin, Ticarcillin, Pipercillin, Imipenem, Aztreonam, Cephalosporins |
|
|
Term
MOA: Block DNA topoisomerases |
|
Definition
|
|
Term
|
Definition
|
|
Term
MOA: Block nucleotide synthesis |
|
Definition
Sulfonamides, Trimethoprim |
|
|
Term
MOA: Block peptidoglycan synthesis |
|
Definition
|
|
Term
MOA: Block protein synthesis at 30s subunit |
|
Definition
Aminoglycosides, Tetracyclines |
|
|
Term
MOA: Block protein synthesis at 50s subunit |
|
Definition
Chloramphenicol, Erythromycin/macrolides, Lincomycin, Clindamycin, Streptogramins (quinupristin, dalfopristin) |
|
|
Term
MOA: Disrupt bacterial/ fungal cell membranes |
|
Definition
|
|
Term
|
Definition
|
|
Term
MOA:Disrupt fungal cell membranes |
|
Definition
Amphotericin B, Nystatin, Fluconazole/azoles |
|
|
Term
|
Definition
|
|
Term
Name several common Macrolides (3) |
|
Definition
Erythromycin, Azithromycin, Clarithromycin |
|
|
Term
Name some common Sulfonamides (4) |
|
Definition
Sulfamethoxazole (SMZ), Sulfisoxazole, Triple sulfas, Sulfadiazine |
|
|
Term
Name some common Tetracyclines (4) |
|
Definition
Tetracycline, Doxycycline, Demeclocycline, Minocycline |
|
|
Term
Name the common Aminoglycosides (5) |
|
Definition
Gentamicin, Neomycin, Amikacin, Tobramycin, Streptomycin |
|
|
Term
|
Definition
Fluconazole, Ketoconazole, Clotrimazole, Miconazole, Itraconazole |
|
|
Term
Name the common Fluoroquinolones (6) |
|
Definition
Ciprofloxacin, Norfloxacin, Ofloxacin, Grepafloxacin, Enoxacin, Nalidixic acid |
|
|
Term
Name the common Non- Nucleoside Reverse Transcriptase Inhibitors |
|
Definition
|
|
Term
Name the common Nucleoside Reverse Transcriptase Inhibitors |
|
Definition
Zidovudine (AZT), Didanosine (ddI), Zalcitabine (ddC), Stavudine (d4T), Lamivudine (3TC) |
|
|
Term
Name the Protease Inhibitors (4) |
|
Definition
Saquinavir, Ritonavir, Indinavir, Nelfinavir |
|
|
Term
Name two classes of drugs for HIV therapy |
|
Definition
Protease Inhibitors and Reverse Transcriptase Inhibitors |
|
|
Term
Name two organisms Vancomycin is commonly used for? |
|
Definition
Staphlococcus aureus and Clostridium difficile (pseudomembranous colitis) |
|
|
Term
|
Definition
|
|
Term
Resistance mechanisms for Aminoglycosides |
|
Definition
Modification via Acetylation, Adenylation, or Phosphorylation |
|
|
Term
Resistance mechanisms for Cephalosporins/Penicillins |
|
Definition
Beta-lactamase cleavage of Beta-lactam ring |
|
|
Term
Resistance mechanisms for Chloramphenicol |
|
Definition
Modification via Acetylation |
|
|
Term
Resistance mechanisms for Macrolides |
|
Definition
Methylation of rRNA near Erythromycin's ribosome binding site |
|
|
Term
Resistance mechanisms for Sulfonamides |
|
Definition
Altered bacterial Dihydropteroate Synthetase, Decreased uptake, or Increased PABA synthesis |
|
|
Term
Resistance mechanisms for Tetracycline |
|
Definition
Decreased uptake or Increased transport out of cell |
|
|
Term
Resistance mechanisms for Vancomycin |
|
Definition
Terminal D-ala of cell wall replaced with D-lac; Decreased affinity |
|
|
Term
Side effects of Isoniazid (INH)? |
|
Definition
Hemolysis (if G6PD deficient), Neurotoxicity, Hepatotoxicity, SLE-like syndrome |
|
|
Term
Specifically, how does Foscarnet inhibit viral DNA pol? |
|
Definition
Binds to the Pyrophosphate Binding Site of the enzyme |
|
|
Term
The MOA for Chloramphenicol is …⠀¦â€¦â€¦â€¦..? |
|
Definition
Inhibition of 50S peptidyl transferase, Bacteriostatic |
|
|
Term
Toxic effects of TMP include………? |
|
Definition
Megaloblastic anemia, Leukopenia, Granulocytopenia |
|
|
Term
Toxic side effects of the Azoles? |
|
Definition
Hormone synthesis inhibition (Gynecomastia), Liver dysfunction (Inhibits CYP450), Fever, Chills |
|
|
Term
Toxicities associated with Acyclovir? |
|
Definition
Delirium, Tremor, Nephrotoxicity |
|
|
Term
What additional side effects exist for Ampicillin? |
|
Definition
Rash, Pseudomembranous colitis |
|
|
Term
What antimicrobial class is Aztreonam syngergestic with? |
|
Definition
|
|
Term
What are Amantadineassociated side effects? |
|
Definition
Ataxia, Dizziness, Slurred speech |
|
|
Term
What are Aminoglycosides synergistic with? |
|
Definition
|
|
Term
What are Aminoglycosides used for clinically? |
|
Definition
Severe Gram - rod infections. |
|
|
Term
What are common serious side effects of Aminoglycosides and what are these associated with? |
|
Definition
Nephrotoxicity (esp. with Cephalosporins), Ototoxicity (esp. with Loop Diuretics) |
|
|
Term
What are common side effects of Amphotericin B? |
|
Definition
Fever/Chills, Hypotension, Nephrotoxicity, Arrhythmias |
|
|
Term
What are common side effects of Protease Inhibitors? |
|
Definition
GI intolerance (nausea, diarrhea), Hyperglycemia, Lipid abnormalities, Thrombocytopenia (Indinavir) |
|
|
Term
What are common side effects of RT Inhibitors? |
|
Definition
BM suppression (neutropenia, anemia), Peripheral neuropathy |
|
|
Term
What are common toxic side effects of Sulfonamides? (5) |
|
Definition
-Hypersensitivity reactions -Hemolysis - Nephrotoxicity (tubulointerstitial nephritis) -Kernicterus in infants Displace other drugs from albumin (e.g., warfarin) |
|
|
Term
What are common toxicities associated with Macrolides? (4) |
|
Definition
GI discomfort, Acute cholestatic hepatitis, Eosinophilia, Skin rashes |
|
|
Term
What are common toxicities associated with Tetracyclines? |
|
Definition
GI distress, Tooth discoloration and Inhibition of bone growth in children, Fanconi's syndrome, Photosensitivity |
|
|
Term
What are common toxicities related to Vancomycin therapy? |
|
Definition
Well tolerated in general but occasionally, Nephrotoxicity, Ototoxicity, Thrombophlebitis, diffuse flushing='Red Man Syndrome' |
|
|
Term
What are Fluoroquinolones indicated for? (3) |
|
Definition
1.Gram - rods of the Urinary and GI tracts (including Pseudomonas) 2.Neisseria 3. Some Gram + organisms |
|
|
Term
What are major side effects of Methicillin, Nafcillin, and Dicloxacillin? |
|
Definition
Hypersensitivity reactions |
|
|
Term
What are Methicillin, Nafcillin, and Dicloxacillin used for clinically? |
|
Definition
|
|
Term
What are Polymyxins used for? |
|
Definition
Resistant Gram - infections |
|
|
Term
What are the Anti-TB drugs? |
|
Definition
Rifampin, Ethambutol, Streptomycin, Pyrazinamide, Isoniazid (INH) |
|
|
Term
What are the clinical indications for Azole therapy? |
|
Definition
|
|
Term
What are the clinical uses for 1st Generation Cephalosporins? |
|
Definition
Gram + cocci, Proteus mirabilis, E. coli, Klebsiella pneumoniae (PEcK) |
|
|
Term
What are the clinical uses for 2nd Generation Cephalosporins? |
|
Definition
Gram + cocci, Haemophilus influenza, Enterobacter aerogenes, Neisseria species, P. mirabilis, E. coli, K. pneumoniae, Serratia marcescens ( HEN PEcKS ) |
|
|
Term
What are the clinical uses for 3rd Generation Cephalosporins? |
|
Definition
1) Serious Gram - infections resistant to other Beta lactams 2) Meningitis (most penetrate the BBB) |
|
|
Term
What are the clinical uses for Aztreonam? |
|
Definition
Gram - rods: Klebsiella species, Pseudomonas species, Serratia species |
|
|
Term
What are the clinical uses for Imipenem/cilastatin? |
|
Definition
Gram + cocci, Gram - rods, and Anerobes |
|
|
Term
What are the Macrolides used for clinically? |
|
Definition
Upper respiratory tract infections -pneumonias - STDs: Gram+ cocci (streptococcal infect in pts allergic to penicillin) - Mycoplasma, Legionella,Chlamydia, Neisseria |
|
|
Term
What are the major structural differences between Penicillin and Cephalosporin? |
|
Definition
Cephalosporin: 1) has a 6 member ring attached to the Beta lactam instead of a 5 member ring 2)has an extra functional group ( attached to the 6 member ring) |
|
|
Term
What are the major toxic side effects of Imipenem/ cilastatin? |
|
Definition
GI distress, Skin rash, and Seizures at high plasma levels |
|
|
Term
What are the major toxic side effects of the Cephalosporins? |
|
Definition
1) Hypersensitivity reactions 2) Increased nephrotoxicity of Aminoglycosides 3) Disulfiram-like reaction with ethanol (those with a methylthiotetrazole group, e.g., cefamandole) |
|
|
Term
What are the side effects of Polymyxins? |
|
Definition
Neurotoxicity, Acute renal tubular necrosis |
|
|
Term
What are the side effects of Rifampin? |
|
Definition
Minor hepatotoxicity, Drug interactions (activates P450) |
|
|
Term
What are toxic side effects for Metronidazole? |
|
Definition
Disulfiram-like reaction with EtOH, Headache |
|
|
Term
What are toxicities associated with Chloramphenicol? |
|
Definition
Aplastic anemia (dose independent), Gray Baby Syndrome |
|
|
Term
What conditions are treated with Metronidazole? |
|
Definition
Giardiasis, Amoebic dysentery (E. histolytica), Bacterial vaginitis (Gardnerella vaginalis), Trichomonas |
|
|
Term
What do Aminoglycosides require for uptake? |
|
Definition
|
|
Term
What do you treat Nematode/roundworm (pinworm, whipworm) infections with? |
|
Definition
Mebendazole/ Thiabendazole, Pyrantel Pamoate |
|
|
Term
What drug is given for Pneumocystis carinii prophylaxis? |
|
Definition
|
|
Term
What drug is used during the pregnancy of an HIV + mother?, Why? |
|
Definition
AZT, to reduce risk of Fetal Transmission |
|
|
Term
What drug is used to treat Trematode/fluke (e.g., Schistosomes, Paragonimus, Clonorchis) or Cysticercosis |
|
Definition
|
|
Term
What is a common drug interaction associated with Griseofulvin? |
|
Definition
Increases coumadin metabolism |
|
|
Term
What is a mnemonic to remember Amantadine's function? |
|
Definition
ocks Influenza A and RubellA; causes problems with the cerebellA |
|
|
Term
What is a prerequisite for Acyclovir activation? |
|
Definition
It must be Phosphorylated by Viral Thymidine Kinase |
|
|
Term
What is a Ribavirin toxicity? |
|
Definition
|
|
Term
What is an acronym to remember Anti-TB drugs? |
|
Definition
|
|
Term
What is an additional side effect of Methicillin? |
|
Definition
|
|
Term
What is an occasional side effect of Aztreonam? |
|
Definition
|
|
Term
What is Clindamycin used for clinically? |
|
Definition
Anaerobic infections (e.g., B. fragilis, C. perfringens) |
|
|
Term
What is clinical use for Carbenicillin, Piperacillin, and Ticarcillin? |
|
Definition
Pseudomonas species and Gram - rods |
|
|
Term
What is combination TMPSMZ used to treat? |
|
Definition
Recurrent UTIs, Shigella, Salmonella, Pneumocystis carinii pneumonia |
|
|
Term
What is combined with Ampicillin, Amoxicillin, Carbenicillin, Piperacillin, and Ticarcillin to enhance their spectrum? |
|
Definition
|
|
Term
What is Fluconazole specifically used for? |
|
Definition
Cryptococcal meningitis in AIDS patients and Candidal infections of all types |
|
|
Term
What is Imipenem always administered with? |
|
Definition
|
|
Term
What is Ketoconazole specifically used for? |
|
Definition
Blastomyces, Coccidioides, Histoplasma, C. albicans; Hypercortisolism |
|
|
Term
What is Metronidazole combined with for 'triple therapy'? Against what organism? |
|
Definition
Bismuth and Amoxicillin or Tetracycline; against Helobacter pylori |
|
|
Term
What is Metronidazole used for clinically? |
|
Definition
Antiprotozoal: Giardia, Entamoeba, Trichomonas, Gardnerella vaginalis Anaerobes: Bacteroides, Clostridium |
|
|
Term
What is Niclosamide used for? |
|
Definition
Cestode/tapeworm (e.g., D. latum, Taenia species Except Cysticercosis |
|
|
Term
What is Nifurtimox administered for? |
|
Definition
Chagas' disease, American Trypanosomiasis (Trypanosoma cruzi) |
|
|
Term
What is the chemical name for Ganciclovir? |
|
Definition
DHPG (dihydroxy-2- propoxymethyl guanine) |
|
|
Term
What is the clinical use for Ampicillin and Amoxicillin? |
|
Definition
Extended spectrum penicillin: certain Gram + bacteria and Gram - rods |
|
|
Term
What is the clinical use for Nystatin? |
|
Definition
Topical and Oral, for Oral Candidiasis (Thrush) |
|
|
Term
What is the clinical use for Penicillin? |
|
Definition
Bactericidal for: Gram + rod and cocci, Gram - cocci, and Spirochetes |
|
|
Term
What is the major side effect for Ampicillin and Amoxicillin? |
|
Definition
Hypersensitivity reactions |
|
|
Term
What is the major side effect for Carbenicillin, Piperacillin, and Ticarcillin? |
|
Definition
Hypersensitivity reactions |
|
|
Term
What is the major toxic side effect of Penicillin? |
|
Definition
Hypersensitivity reactions |
|
|
Term
What is the memory aid for subunit distribution of ribosomal inhibitors? |
|
Definition
|
|
Term
What is the memory key for Isoniazid (INH) toxicity? |
|
Definition
INH: Injures Neurons and Hepatocytes |
|
|
Term
What is the memory key for Metronidazole's clinical uses? |
|
Definition
|
|
Term
What is the memory key for organisms treated with Tetracyclines? |
|
Definition
|
|
Term
What is the memory key involving the '4 R's of Rifampin?' |
|
Definition
1. RNA pol inhibitor 2. Revs up P450 3. Red/ orange body fluids 4. Rapid resistance if used alone |
|
|
Term
What is the MOA for Acyclovir? |
|
Definition
Inhibit viral DNA polymerase |
|
|
Term
What is the MOA for Amphotericin B? |
|
Definition
Binds Ergosterol, forms Membrane Pores that Disrupt Homeostatis |
|
|
Term
What is the MOA for Ampicillin and Amoxicillin? |
|
Definition
Same as penicillin. Extended spectrum antibiotics |
|
|
Term
What is the MOA for Carbenicillin, Piperacillin, and Ticarcillin? |
|
Definition
Same as penicillin. Extended spectrum antibiotics |
|
|
Term
What is the MOA for Clindamycin? |
|
Definition
Blocks Peptide Bond formation at the 50S subunit, Bacteriostatic |
|
|
Term
What is the MOA for Methicillin, Nafcillin, and Dicloxacillin? |
|
Definition
Same as penicillin. Act as narrow spectrum antibiotics |
|
|
Term
What is the MOA for Metronidazole? |
|
Definition
Forms toxic metabolites in the bacterial cell, Bactericidal |
|
|
Term
What is the MOA for Nystatin? |
|
Definition
Binds ergosterol, Disrupts fungal membranes |
|
|
Term
What is the MOA for Rifampin? |
|
Definition
Inhibits DNA dependent RNA polymerase |
|
|
Term
What is the MOA for the Aminoglycosides? |
|
Definition
Inhibits formation of Initiation Complex, causes misreading of mRNA, Bactericidal |
|
|
Term
What is the MOA for the Azoles? |
|
Definition
Inhibit Ergosterol synthesis |
|
|
Term
What is the MOA for the Cephalosporins? |
|
Definition
Beta lactams - inhibit cell wall synthesis, Bactericidal |
|
|
Term
What is the MOA for the Fluoroquinolones? |
|
Definition
Inhibit DNA Gyrase (topoisomerase II), Bactericidal |
|
|
Term
What is the MOA for the Macrolides? |
|
Definition
Blocks translocation, binds to the 23S rRNA of the 50S subunit, Bacteriostatic |
|
|
Term
What is the MOA for the Tetracyclines? |
|
Definition
Binds 30S subunit and prevents attachment of aminoacyl-tRNA, Bacteriostatic |
|
|
Term
What is the MOA for Trimethoprim (TMP)? |
|
Definition
Inhibits bacterial Dihydrofolate Reductase, Bacteriostatic |
|
|
Term
What is the MOA for Vancomycin? |
|
Definition
Inhibits cell wall mucopeptide formation, Bactericidal |
|
|
Term
What is the MOA of Amantadine? |
|
Definition
Blocks viral penetration/ uncoating; may act to buffer the pH of the endosome |
|
|
Term
What is the MOA of Aztreonam? |
|
Definition
Inhibits cell wall synthesis ( binds to PBP3). A monobactam |
|
|
Term
What is the MOA of Foscarnet? |
|
Definition
Inhibits Viral DNA polymerase |
|
|
Term
What is the MOA of Ganciclovir? |
|
Definition
Inhibits CMV DNA polymerase |
|
|
Term
What is the MOA of Griseofulvin? |
|
Definition
Interferes with microtubule function, disrupts mitosis, inhibits growth |
|
|
Term
What is the MOA of Imipenem? |
|
Definition
Acts as a wide spectrum carbapenem |
|
|
Term
What is the MOA of Isoniazid (INH)? |
|
Definition
Decreases synthesis of Mycolic Acid |
|
|
Term
What is the MOA of Polymyxins? |
|
Definition
Bind cell membrane, disrupt osmotic properties, Are Cationc, Basic and act as detergents |
|
|
Term
What is the MOA of Ribavirin? |
|
Definition
Inhibits IMP Dehydrogenase (competitively), and therefore blocks Guanine Nucleotide synthesis |
|
|
Term
What is the MOA of the RT Inhibitors? |
|
Definition
Inhibit RT of HIV and prevent the incorporation of viral genome into the host DNA |
|
|
Term
What is the most common cause of Pt noncompliance with Macrolides? |
|
Definition
|
|
Term
What is treated with Chloroquine, Quinine, Mefloquine? |
|
Definition
|
|
Term
What microorganisms are Aminoglycosides ineffective against? |
|
Definition
|
|
Term
What microorganisms are clinical indications for Tetracycline therapy? |
|
Definition
Vibrio cholerae Acne Chlamydia Ureaplasma Urealyticum Mycoplasma pneumoniae Borrelia burgdorferi (Lyme's) Rickettsia Tularemia |
|
|
Term
What microorganisms is Aztreonam not effective against? |
|
Definition
|
|
Term
What musculo-skeletal side effects in Adults are associated with Floroquinolones? |
|
Definition
Tendonitis and Tendon rupture |
|
|
Term
What neurotransmitter does Amantadine affect? How does it influence this NT? |
|
Definition
Dopamine; causes its release from intact nerve terminals |
|
|
Term
What organism is Imipenem/cilastatin the Drug of Choice for? |
|
Definition
|
|
Term
What organisms does Griseofulvin target? |
|
Definition
Dermatophytes (tinea, ringworm) |
|
|
Term
What parasites are treated with Pyrantel Pamoate (more specific)? |
|
Definition
Giant Roundworm (Ascaris), Hookworm (Necator/Ancylostoma), Pinworm (Enterobius) |
|
|
Term
What parasitic condition is treated with Ivermectin? |
|
Definition
Onchocerciasis ('river blindness'--rIVER-mectin) |
|
|
Term
What populations are Floroquinolones contraindicated in? Why? |
|
Definition
Pregnant women, Children; because animal studies show Damage to Cartilage |
|
|
Term
What should not be taken with Tetracyclines? / Why? |
|
Definition
Milk or Antacids, because divalent cations inhibit Tetracycline absorption in the gut |
|
|
Term
What Sulfonamides are used for simple UTIs? |
|
Definition
|
|
Term
When is HIV therapy initiated? |
|
Definition
When pts have Low CD4+ (< 500 cells/cubic mm) or a High Viral Load |
|
|
Term
When is Rifampin not used in combination with other drugs? |
|
Definition
1. Meningococcal carrier state 2. Chemoprophylaxis in contacts of children with H. influenzae type B |
|
|
Term
Where does Griseofulvin deposit? |
|
Definition
Keratin containing tissues, e.g., nails |
|
|
Term
Which Aminoglycoside is used for Bowel Surgery ? |
|
Definition
|
|
Term
Which antimicrobial classes inhibit protein synthesis at the 30S subunit? (2) |
|
Definition
1) Aminoglycosides = bactericidal 2) Tetracyclines = bacteriostatic |
|
|
Term
Which antimicrobials inhibit protein synthesis at the 50S subunit? (4) |
|
Definition
1) Chloramphenical = bacteriostatic 2) Erythromycin = bacteriostatic 3) Lincomycin = bacteriostatic 4)cLindamycin = bacteriostatic |
|
|
Term
Which individuals are predisposed to Sulfonamide-induced hemolysis? |
|
Definition
G6PD deficient individuals |
|
|
Term
Which RT inhibitor causes Megaloblastic Anemia? |
|
Definition
|
|
Term
Which RT inhibitors cause a Rash? |
|
Definition
|
|
Term
Which RT inhibitors cause Lactic Acidosis? |
|
Definition
|
|
Term
Which Tetracycline is used in patients with renal failure? / Why? |
|
Definition
Doxycycline, because it is fecally eliminated |
|
|
Term
|
Definition
B.W. !!!, Ha. Good Luck on Boards |
|
|
Term
Why are Methicillin, Nafcillin, and Dicloxacillin penicillinase resistant? |
|
Definition
Due to the presence of a bulkier R group |
|
|
Term
Why is Cilastatin administered with Imipenem? |
|
Definition
To inhibit renal Dihydropeptidase I and decrease Imipenem inactivation in the renal tubules |
|
|
Term
List the mechanism, clinical use, & toxicity of 5 FU. |
|
Definition
-S-phase anti-metabolite Pyr analogue -Colon, solid tumors, & BCC/ - Irreversible myelosuppression |
|
|
Term
List the mechanism, clinical use, & toxicity of 6 MP. |
|
Definition
-inhibits HGPRT (pur. Syn.) - Luk, Lymph, |
|
|
Term
List the mechanism, clinical use, & toxicity of Bleomycin. |
|
Definition
-DNA intercalator - testicular & lymphomas -Pulmonary fibrosis mild myelosuppression. |
|
|
Term
List the mechanism, clinical use, & toxicity of Busulfan. |
|
Definition
-Alkalates DNA -CML - Pulmonary fibrosis hyperpigmentation |
|
|
Term
List the mechanism, clinical use, & toxicity of Cisplatin. |
|
Definition
-Alkalating agent - testicular,bladder,ovary,&a mp;lung -Nephrotoxicity & CN VIII damage. |
|
|
Term
List the mechanism, clinical use, & toxicity of Cyclophosphamide. |
|
Definition
-Alkalating agent -NHL, Breast, ovary, & lung. - Myelosuppression, & hemorrhagic cystitis. |
|
|
Term
List the mechanism, clinical use, & toxicity of Doxorubicin. |
|
Definition
-DNA intercalator - Hodgkin's, myeloma, sarcoma, and solid tumors -Cardiotoxicity & alopecia |
|
|
Term
List the mechanism, clinical use, & toxicity of Etoposide. |
|
Definition
-Topo II inhibitor(GII specific) -Oat cell of Lung & prostate, & testicular - Myelosuppression & GI irritation. |
|
|
Term
List the mechanism, clinical use, & toxicity of Methotrexate. |
|
Definition
-S-phase anti-metabolite folate analogue -Luk, Lymp, sarc, RA, &psoriasis / - Reversible myelosuppression |
|
|
Term
List the mechanism, clinical use, & toxicity of Nitrosureas. |
|
Definition
-Alkalate DNA -Brain tumors -CNS toxicity |
|
|
Term
List the mechanism, clinical use, & toxicity of Paclitaxel. |
|
Definition
-MT polymerization stabilizer -Ovarian & breast CA - Myelosupperession & hypersensitivity. |
|
|
Term
List the mechanism, clinical use, & toxicity of Prednisone. |
|
Definition
-Triggers apoptosis -CLL, Hodgkin's in MOPP - Cushing-like syndrome |
|
|
Term
List the mechanism, clinical use, & toxicity of Tamoxifen. |
|
Definition
-Estrogen receptor antagonist -Breast CA - increased endometrial CA risk |
|
|
Term
List the mechanism, clinical use, & toxicity of Vincristine. |
|
Definition
-MT polymerization inhibitor(M phase) -MOPP, lymphoma, Willm's & choriocarcinoma - neurotoxicity and myelosuppression |
|
|
Term
Which cancer drugs effect nuclear DNA (4)? |
|
Definition
-Alkalating agents +cisplatin -Doxorubicin +Dactinomycin -Bleomycin -Etoposide |
|
|
Term
Which cancer drugs inhibit nucleotide synthesis(3)? |
|
Definition
- Methotrexate - 5 FU - 6 mercaptopurine |
|
|
Term
Which cancer drugs work at the level of mRNA(2)? |
|
Definition
|
|
Term
Which cancer drugs work at the level of proteins(2)? |
|
Definition
-Vinca alkaloids(inhibit MT) -Paclitaxel |
|
|
Term
ACE inhibitors- clinical use? |
|
Definition
hypertension, CHF, diabetic renal disease |
|
|
Term
|
Definition
reduce levels of Angiotensin II, thereby preventing the inactivation of bradykinin (a potent vasodilator); renin level is increased |
|
|
Term
ACE inhibitors- toxicity? |
|
Definition
fetal renal damage, hyperkalemia, Cough, Angioedema, Proteinuria, Taste changes, hypOtension, Pregnancy problems, Rash, Increased renin, Lower Angiotensin II (CAPTOPRIL) |
|
|
Term
Acetazolamide- clinical uses? |
|
Definition
glaucoma, urinary alkalinization, metabolic alkalosis, altitude sickness |
|
|
Term
|
Definition
acts at the proximal convoluted tubule to inhibit carbonic anhydrase. Causes self-limited sodium bicarb diuresis and reduction of total body bicarb stores. |
|
|
Term
acetazolamide- site of action? |
|
Definition
proximal convoluted tubule |
|
|
Term
|
Definition
hyperchloremic metabolic acidosis, neuropathy, NH3 toxicity, sulfa allergy |
|
|
Term
|
Definition
ACIDazolamide' causes acidosis |
|
|
Term
|
Definition
DOC in diagnosing and abolishing AV nodal arrhythmias |
|
|
Term
ADH antagonists- site of action? |
|
Definition
|
|
Term
adverse effect of Nitroprusside? |
|
Definition
cyanide toxicity (releases CN) |
|
|
Term
adverse effects of betablockers? |
|
Definition
impotence, asthma, CV effects (bradycardia, CHF, AV block), CNS effects (sedation, sleep alterations) |
|
|
Term
adverse effects of Captopril? |
|
Definition
fetal renal toxicity, hyperkalemia, Cough, Angioedema, Proteinuria, Taste changes, hypOtension, Pregnancy problems, Rash, Increased renin, Lower Angiotensin II (CAPTOPRIL) |
|
|
Term
adverse effects of Clonidine? |
|
Definition
dry mouth, sedation, severe rebound hypertension |
|
|
Term
adverse effects of ganglionic blockers? |
|
Definition
severe orthostatic hypotension, blurred vision, constipation, sexual dysfunction |
|
|
Term
adverse effects of Guanethidine? |
|
Definition
orthostatic and exercise hypotension, sexual dysfunction, diarrhea |
|
|
Term
adverse effects of Hydralazine? |
|
Definition
nausea, headache, lupuslike syndrome, reflex tachycardia, angina, salt retention |
|
|
Term
adverse effects of Hydrochlorothiazide? |
|
Definition
hypokalemia, slight hyperlipidemia, hyperuricemia, lassitude, hypercalcemia, hyperglycemia |
|
|
Term
adverse effects of Loop Diuretics? |
|
Definition
K+ wasting, metabolic alkalosis, hypotension, ototoxicity |
|
|
Term
adverse effects of Losartan? |
|
Definition
fetal renal toxicity, hyperkalemia |
|
|
Term
adverse effects of Methyldopa? |
|
Definition
sedation, positive Coombs' test |
|
|
Term
adverse effects of Minoxidil? |
|
Definition
hypertrichosis, pericardial effusion, reflex tachycardia, angina, salt retention |
|
|
Term
adverse effects of Nifedipine, verapamil? |
|
Definition
dizziness, flushing, constipation (verapamil), nausea |
|
|
Term
adverse effects of Prazosin? |
|
Definition
first dose orthostatic hypotension, dizziness, headache |
|
|
Term
adverse effects of Reserpine? |
|
Definition
sedation, depression, nasal stuffiness, diarrhea |
|
|
Term
|
Definition
pulmonary fibrosis, corneal deposits, hepatotoxicity, skin deposits resulting in photodermatitis, neurologic effects, consitpation, CV (bradycardia, heart block, CHF), and hypo- or hyperthyroidism. |
|
|
Term
|
Definition
slowly normalize K+, lidocaine, cardiac pacer, and anti-Dig Fab fragments |
|
|
Term
Beta Blockers- CNS toxicity? |
|
Definition
sedation, sleep alterations |
|
|
Term
Beta Blockers- CV toxicity? |
|
Definition
bradycardia, AV block, CHF |
|
|
Term
Beta Blockers- site of action? |
|
Definition
Beta adrenergic receptors and Ca2+ channels (stimulatory) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
new arrhythmias, hypotension |
|
|
Term
Ca2+ channel blockersclinical use? |
|
Definition
hypertension, angina, arrhythmias |
|
|
Term
Ca2+ channel blockersmechanism? |
|
Definition
block voltage dependent L-type Ca2+ channels of cardiac and smooth muscle- decreasing contractility |
|
|
Term
Ca2+ channel blockerssite of action? |
|
Definition
Cell membrane Ca2+ channels of cardiac sarcomere |
|
|
Term
Ca2+ channel blockerstoxicity? |
|
Definition
cardiac depression, peripheral edema, flushing, dizziness, constipation |
|
|
Term
Ca2+ sensitizers'- site of action? |
|
Definition
troponin-tropomyosin system |
|
|
Term
Cautions when using Amiodarone? |
|
Definition
check PFTs, LFTs, and TFTs |
|
|
Term
|
Definition
increased AP duration, increased ERP increased QT interval. Atrial and ventricular. |
|
|
Term
|
Definition
post MI and digitalis induced arrhythmias |
|
|
Term
|
Definition
decrease AP duration, affects ischemic or depolarized Purkinje and ventricular system |
|
|
Term
|
Definition
local anesthetic. CNS stimulation or depression. CV depression. |
|
|
Term
|
Definition
NO AP duration effect. useful in V-tach that progresses to V-fib and in intractable SVT LAST RESORT |
|
|
Term
|
Definition
|
|
Term
|
Definition
decrease the slope of phase 4, increase PR interval (the AV node is particularly sensitive) |
|
|
Term
|
Definition
blocking the beta adrenergic receptor leads to decreased cAMP, and decreased Ca2+ flux |
|
|
Term
|
Definition
impotence, exacerbation of asthma, CV effects, CNS effects, may mask hypoclycemia |
|
|
Term
|
Definition
increase AP duration, increase ERP, increase QT interval, for use when other arrhythmics fail |
|
|
Term
|
Definition
prevention of nodal arrhythmias (SVT) |
|
|
Term
|
Definition
decrease conduction velocity, increase ERP, increase PR interval |
|
|
Term
class IV- primary site of action? |
|
Definition
|
|
Term
|
Definition
constipation, flushing, edema, CV effects (CHF, AV block, sinus node depression), and torsade de pointes (Bepridil) |
|
|
Term
classes of antihypertensive drugs? |
|
Definition
diuretics, sympathoplegics, vasodilators, ACE inhibitors, Angiotensin II receptor inhibitors |
|
|
Term
|
Definition
angina, pulmonary edema (also, erection enhancer) |
|
|
Term
|
Definition
|
|
Term
*Venodilators (incr VR); effect on contractility? |
|
Definition
increase (reflex response) |
|
|
Term
* B-Bl & Ca Ch Bl; effect on contractility? |
|
Definition
|
|
Term
* Digoxin contraindications? |
|
Definition
renal failure, hypokalemia, pt on quinidine |
|
|
Term
* Can Digoxin be used in renal failure, hypokalemia, pt on quinidine |
|
Definition
|
|
Term
decrease Digoxin dose in renal failure? |
|
Definition
|
|
Term
Digitalis- site of action? |
|
Definition
|
|
Term
Digoxin v. Digitoxin: bioavailability? |
|
Definition
|
|
Term
Digoxin v. Digitoxin: excretion? |
|
Definition
Digoxin=urinary Digitoxin=biliary |
|
|
Term
Digoxin v. Digitoxin: half life? |
|
Definition
Digitoxin 168hrs Digoxin 40 hrs |
|
|
Term
Digoxin v. Digitoxin: protein binding? |
|
Definition
Digitoxin 70% Digoxin 20-40% |
|
|
Term
* Sympathomim effect on ejection time? |
|
Definition
|
|
Term
* B-Bl effect on ejection time? |
|
Definition
|
|
Term
|
Definition
inc PR, dec QT, scooping of ST, and T wave inversion |
|
|
Term
* Digitalis effect on end diastolic volume? |
|
Definition
|
|
Term
* B-Bl & Ca Ch Bl effect on end diastolic volume? |
|
Definition
|
|
Term
Esmolol- short or long acting? |
|
Definition
|
|
Term
Ethacrynic Acid- clinical use? |
|
Definition
Diuresis in pateints with sulfa allergy |
|
|
Term
Ethacrynic Acidmechanism? |
|
Definition
not a sulfonamide, but action is the same as furosemide |
|
|
Term
Ethacrynic Acid- toxicity? |
|
Definition
NO HYPERURICEMIA, NO SULFA ALLERGY; same as furosemide otherwise |
|
|
Term
Furosemide- class and mechanism? |
|
Definition
Sulfonamide Loop Diuretic. Inhibits ion co-transport system of thick ascending loop. Abolishes hypertonicity of the medulla, thereby preventing concentration of the urine. |
|
|
Term
Furosemide- clinical use? |
|
Definition
edematous states (CHF, cirrhosis, nephrotic syndrome, pulm edema), HTN, hypercalcemia |
|
|
Term
Furosemide- toxicity? (OH DANG) |
|
Definition
Ototoxicity, Hypokalemia, Dehydration, Allergy (sulfa), Nephritis (interstitial), Gout |
|
|
Term
Furosemide increases the excretion of what ion? |
|
Definition
Ca2+ (Loops Lose calcium) |
|
|
Term
* Cholestyramine on HDL effect? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
* Fibrates on HDL effect? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
decrease myocardial O2 consumption by: 1- decreasing end diastolic volume 2- decreasing BP 3- decreasing HR 4- decreasing contractility 5- decreasing ejection time |
|
|
Term
* Nitrate, Nifidepine, Hydralazine effect HR? |
|
Definition
increase (reflex response) |
|
|
Term
* B-Bl, Verapamil effect on HR? |
|
Definition
|
|
Term
Hydralazine- class and mechanism? |
|
Definition
vasodilator- increases cGMP to induce smooth muscle relaxation (arterioles>veins; afterload reduction) |
|
|
Term
Hydralazine- clinical use? |
|
Definition
|
|
Term
|
Definition
compensatory tachycardia, fluid retention, lupus-like syndrome |
|
|
Term
Hydrochlorothiazideclinical use? |
|
Definition
HTN, CHF, calcium stone formation, nephrogenic DI. |
|
|
Term
Hydrochlorothiazidemechanism? |
|
Definition
Inhibits NaCl reabsorption in the early distal tubule. Decreases Ca2+ excretion. |
|
|
Term
Hydrochlorothiazidetoxicity? (hyperGLUC, plus others) |
|
Definition
Hypokalemic metabolic alkalosis, hyponatremia, hyperGlycemia, hyperLipidemia, hyperUricemia, hyperCalcemia, sulfa allergy. |
|
|
Term
|
Definition
|
|
Term
|
Definition
depresses ectopic pacemakers, especially in digoxin toxicity |
|
|
Term
K+ sparing diureticsclinical use? |
|
Definition
hyperaldosteronism, K+ depletion, CHF |
|
|
Term
K+ sparing diuretics- site of action? |
|
Definition
cortical collecting tubule |
|
|
Term
K+ sparing diureticstoxicity? |
|
Definition
hyperkalemia, endocrine effects (gynecomastia, anti-androgen) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
* Bile Acid Resins on LDL effect? |
|
Definition
|
|
Term
* Cholesterol Absorption Blocker on LDL effect? |
|
Definition
|
|
Term
* Fibrates on LDL effect? |
|
Definition
|
|
Term
loop diuretics (furosemide)- site of action? |
|
Definition
|
|
Term
|
Definition
ARF, shock, drug overdose, decrease intracranial/intraocular pressure |
|
|
Term
Mannitolcontraindications? |
|
Definition
|
|
Term
|
Definition
osmotic diuretic- increase tubular fluid osmolarity, thereby increasing urine flow |
|
|
Term
mannitol- site of action? |
|
Definition
proximal convoluted tubule, thin descending limb, and collecting duct |
|
|
Term
|
Definition
pulmonary edema, dehydration |
|
|
Term
|
Definition
vasodilate by releasing NO in smooth muscle, causing and increase in cGMP and smooth muscle relaxation (veins>>arteries) |
|
|
Term
|
Definition
inhibits the Na/K ATPase, increasing intracellular Na + decreasing the function of the Na/Ca antiport causing an increase in intracellular Ca2+ |
|
|
Term
* Class I (?); mechanism? |
|
Definition
Na+ channel blockers. Slow or block conduction. Decreased slope in phase 4 and increased threshold for firing in abnormal pacemaker cells. |
|
|
Term
|
Definition
effective in torsade de pointes and digoxin toxicity |
|
|
Term
|
Definition
|
|
Term
* Ca Ch Bl effect on MVO2? |
|
Definition
|
|
Term
|
Definition
propanolol, esmolol, metoprolol, atenolol, timolol |
|
|
Term
name four HMG-CoA reductase inhibitors. |
|
Definition
Lovastatin, Pravastatin, Simvastatin, Atorvastatin |
|
|
Term
|
Definition
Quinidine, Procainamide, Disopyramide |
|
|
Term
|
Definition
Sotalol, Ibutilide, Bretylium, Amiodarone |
|
|
Term
|
Definition
Captopril, Enalapril, Lisinopril |
|
|
Term
name three calcium channel blockers? |
|
Definition
Nifedipine, Verapamil, Diltiazem |
|
|
Term
|
Definition
Lidocaine, Mexiletine, Tocainide |
|
|
Term
|
Definition
Flecainide, Encainide, Propafenone |
|
|
Term
|
Definition
Verapamil, Diltiazem, Bepridil |
|
|
Term
name three K+ sparing diuretics? |
|
Definition
Spironolactone, Triamterene, Amiloride (the K+ STAys) |
|
|
Term
name two bile acid resins. |
|
Definition
cholestyramine, colestipol |
|
|
Term
name two LPL stimulators. |
|
Definition
|
|
Term
Nifedipine has similar action to? |
|
Definition
|
|
Term
preferential action of the Ca2+ channel blockers at cardiac muscle? |
|
Definition
cardiac muscle: Verapamil>Diltiazem> ;Nifedipine |
|
|
Term
preferential action of the Ca2+ channel blockers at vascular smooth muscle? |
|
Definition
vascular sm. Mus.: Nifedipine>Diltiazem&g t;Verapamil |
|
|
Term
|
Definition
reversible SLE-like syndrome |
|
|
Term
|
Definition
cinchonism: HA, tinnitus, thrombocytopenia, torsade de pointes due to increased QT interval |
|
|
Term
Ryanodine- stie of action? |
|
Definition
|
|
Term
|
Definition
slectively depress tissue that is frequently depolarized (fast tachycardia) |
|
|
Term
|
Definition
tastes bad and causes GI discomfort |
|
|
Term
* Statins; side effects/problems? |
|
Definition
expensive, reversible increase in LFTs, and myositis |
|
|
Term
* Niacin; side effects/problems? |
|
Definition
red, flushed face which is decreased by ASA or long term use |
|
|
Term
* Statins; side effects/problems? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
torsade de pointes, excessive Beta block |
|
|
Term
Spironolactone mechanism? |
|
Definition
competitive inhibirot of aldosterone in the cortical collecting tubule |
|
|
Term
* Cholestyramine; TG effect? |
|
Definition
|
|
Term
* HMGCoA inhib; TG effect? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
* Cholesterol Absorption Blockers; TG effect? |
|
Definition
|
|
Term
thiazides- site of action? |
|
Definition
distal convoluted tubule (early) |
|
|
Term
|
Definition
tachycardia, hypotension, headache - 'Monday disease' |
|
|
Term
|
Definition
nausea, vomiting, diarrhea, blurred vision, arrhythmia |
|
|
Term
Triamterene and amiloride- mechanism? |
|
Definition
block Na+ channels in the cortical collecting tubule |
|
|
Term
Verapamil has similar action to? |
|
Definition
|
|
Term
what two vasodilators require simultaneous treatment with beta blockers to prevent reflex tachycardia and diuretics to prevent salt retention? |
|
Definition
Hydralazine and Minoxidil |
|
|
Term
which diuretics cause acidosis? |
|
Definition
carbonic anhydrase inhibitors, K+ sparing diuretics |
|
|
Term
which diuretics cause alkalosis? |
|
Definition
loop diuretics, thiazides |
|
|
Term
which diuretics decrease urine Ca2+? |
|
Definition
|
|
Term
which diuretics increase urine Ca2+? |
|
Definition
loop diuretics, spironolactone |
|
|
Term
which diuretics increase urine K+? |
|
Definition
all except the K+ sparing diuretics Spironolactone, Triamterene, Amiloride |
|
|
Term
which diuretics increase urine NaCl? |
|
Definition
|
|
Term
Acetaminophen has what two clinical uses and lacks what one clinical use of the NSAIDs? |
|
Definition
Acetaminophen has antipyretic and analgesic properties, but lacks antiinflammatory properties. |
|
|
Term
Can Heparin be used during pregnancy? |
|
Definition
Yes, it does not cross the placenta. |
|
|
Term
Can Warfarin be used during pregnancy? |
|
Definition
No, warfarin, unlike heparin, can cross the placenta. |
|
|
Term
Does Heparin have a long, medium, or short half life? |
|
Definition
|
|
Term
Does Warfarin have a long, medium, or short half life? |
|
Definition
|
|
Term
For Heparin what is the 1. Structure 2. Route of administration 3. Onset of action 4. Mechanism of action 5. Duration of action 6. Ability to inhibit coagulation in vitro 7. Treatment for overdose 8. Lab value to monitor 9. Site of action |
|
Definition
Heparin 1. Structure - Large anionic polymer, acidic 2. Route of administration - Paranteral (IV, SC) 3. Onset of action - Rapid (seconds) 4. Mechanism of action - Activates antithrombin III 5. Duration of action - Acute (hours) 6. Ability to inhibit coagulation in vitro - Yes 7. Treatment for overdose - Protamine sulfate 8. Lab value to monitor-aPTT (intrinsic pathway) 9. Site of action - Blood |
|
|
Term
For Warfarin what is the 1. Structure 2. Route of administration 3. Onset of action 4. Mechanism of action 5. Duration of action 6. Ability to inhibit coagulation in vitro 7. Treatment for overdose 8. Lab value to monitor 9. Site of action |
|
Definition
Warfarin 1. Structure - Small lipidsoluble molecule 2. Route of administration -Oral 3. Onset of action - Slow, limited by half lives of clotting factors 4. Mechanism of action - Impairs the synthesis of vitamin Kdependent clotting factors 5. Duration of action - Chronic (weeks or months) 6. Ability to inhibit coagulation in vitro - No |
|
|
Term
For Warfarin what is the (continued): |
|
Definition
7. Treatment for overdose - IV vitamin K and fresh frozen plasma 8. Lab value to monitor - PT 9. Site of action - Liver |
|
|
Term
Is toxicity rare or common whith Cromolyn used in Asthma prevention? |
|
Definition
|
|
Term
List five common glucocorticoids. |
|
Definition
1. Hydrocortisone 2. Predisone 3. Triamcinolone 4. Dexamethasone 5. Beclomethasone |
|
|
Term
Secretion of what drug is inhibited by Probenacid used to treat chronic gout? |
|
Definition
|
|
Term
The COX-2 inhibitors (celecoxib, rofecoxib) have similar side effects to the NSAIDs with what one exception? |
|
Definition
The COX-2 inhibitors should not have the corrosive effects of other NSAIDs on the gastrointestinal lining. |
|
|
Term
What are are the Sulfonylureas (general description) and what is their use? |
|
Definition
Sulfonylureas are oral hypoglycemic agents, they are used to stimulate release of endogenous insulin in NIDDM (type-2). |
|
|
Term
What are five advantages of Oral Contraceptives (synthetic progestins, estrogen)? |
|
Definition
1. Reliable (<1% failure) 2. Lowers risk of endometrial and ovarian cancer 3. Decreased incidence of ectopic pregnancy 4. Lower risk of pelvic infections 5. Regulation of menses |
|
|
Term
What are five disadvantages of Oral Contraceptives (synthetic progestins, estrogen)? |
|
Definition
1. Taken daily 2. No protection against STDs 3. Raises triglycerides 4. Depression, weight gain, nausea, HTN 5. Hypercoagulable state |
|
|
Term
What are five possible toxic effects of Aspirin therapy? |
|
Definition
1. Gastric ulceration 2. Bleeding 3. Hyperventilation 4. Reye's syndrome 5. Tinnitus (CN VIII) |
|
|
Term
What are five toxicities associated with Tacrolimus (FK506)? |
|
Definition
1. Significant: nephrotoxicity 2. Peripheral neuropathy 3. Hypertension 4. Pleural effusion 5. Hyperglycemia. |
|
|
Term
What are four advantages of newer low-molecularweight heparins (Enoxaparin)? |
|
Definition
1. Better bioavailability 2. 2 to 4 times longer half life 3. Can be administered subcutaneously 4. Does not require laboratory monitoring |
|
|
Term
What are four clinical activities of Aspirin? |
|
Definition
1. Antipyretic 2. Analgesic 3. Anti-inflammatory 4. Antiplatelet drug. |
|
|
Term
What are four clinical uses of glucocorticoids? |
|
Definition
1. Addison's disease 2. Inflammation 3. Immune suppression 4. Asthma |
|
|
Term
What are four conditions in which H2 Blockers are used clinically? |
|
Definition
1. Peptic ulcer 2. Gastritis 3. Esophageal reflux 4. Zollinger-Ellison syndrome |
|
|
Term
What are four H2 Blockers? |
|
Definition
1. Cimetadine 2. Ranitidine 3. Famotidine 4. Nizatidine |
|
|
Term
What are four Sulfonylureas? |
|
Definition
1. Tolbutamide 2. Chlorpropamide 3. Glyburide 4. Glipizide |
|
|
Term
What are four thrombolytics? |
|
Definition
1. Streptokinase 2. Urokinase 3. tPA (alteplase), APSAC (anistreplase) |
|
|
Term
What are four unwanted effects of Clomiphene use? |
|
Definition
1. Hot flashes 2. Ovarian enlargement 3. Multiple simultaneous pregnancies 4. Visual disturbances |
|
|
Term
What are nine findings of Iatrogenic Cushing's syndrome caused by glucocorticoid therapy? |
|
Definition
1. Buffalo hump 2. Moon facies 3. Truncal obesity 4. Muscle wasting 5. Thin skin 6. Easy bruisability 7. Osteoporosis 8. Adrenocortical atrophy 9. Peptic ulcers |
|
|
Term
What are signs of Sildenafil (Viagra) toxicity? |
|
Definition
Headache, flushing , dyspepsia, blue-green color vision. |
|
|
Term
What are the clinical uses for Ticlopidine, Clopidogrel? |
|
Definition
Acute coronary syndrome; coronary stenting. Decreases the incidence or recurrence of thrombotic stroke. |
|
|
Term
What are the four conditions in which Omeprazole, Lansoprazole is used? |
|
Definition
1. Peptic ulcer 2. Gastritis 3. Esophageal reflux 4. Zollinger-Ellison syndrome |
|
|
Term
What are three clinical uses of the Leuprolide? |
|
Definition
1. Infertility (pulsatile) 2. Prostate cancer (continuous: use with flutamide) 3. Uterine fibroids |
|
|
Term
What are three clinical uses of the NSAIDs? |
|
Definition
1. Antipyretic 2. Analgesic 3. Anti-inflammatory |
|
|
Term
What are three common NSAIDS other than Aspirin? |
|
Definition
Ibuprofen, Naproxen, and Indomethacin |
|
|
Term
What are three complications of Warfarin usage? |
|
Definition
1. Bleeding 2. Teratogenicity 3. Drugdrug interactions |
|
|
Term
What are three possible complications of Heparin therapy? |
|
Definition
1. Bleeding 2. Thrombocytopenia 3. Drug-drug interactions |
|
|
Term
What are three possible toxicities of NSAID usage? |
|
Definition
1. Renal damage 2. Aplastic anemia 3. GI distress |
|
|
Term
What are three toxicities of Leuprolied? |
|
Definition
1. Antiandrogen 2. Nausea 3. Vomiting |
|
|
Term
What are three toxicities of Propylthiouracil? |
|
Definition
1. Skin rash 2. Agranulocytosis (rare) 3. Aplastic anemia |
|
|
Term
What are three types of antacids and the problems that can result from their overuse? |
|
Definition
1. Aluminum hydroxide: constipation and hypophosphatemia 2. Magnesium hydroxide: diarrhea 3. Calcium carbonate: Hypercalcemia, rebound acid increase - All may cause hypokalemia |
|
|
Term
What are three unwanted effects of Mifepristone? |
|
Definition
1. Heavy bleeding 2. GI effects (n/v, anorexia) 3. Abdominal pain |
|
|
Term
What are two Alphaglucosidase inhibitors? |
|
Definition
|
|
Term
What are two clinical uses of Azathioprine? |
|
Definition
1. Kidney transplantation 2. Autoimmune disorders (including glomerulonephritis and hemolytic anemia) |
|
|
Term
What are two conditions in which COX-2 inhibitors might be used? |
|
Definition
Rheumatoid and osteoarthritis. |
|
|
Term
|
Definition
1. Pioglitazone 2. Rosiglitazone. |
|
|
Term
What are two mechanisms of action of Propythiouracil? |
|
Definition
Inhibits organification and coupling of thyroid hormone synthesis. Also decreases peripheral conversion of T4 to T3. |
|
|
Term
What are two processes Corticosteroids inhibit leading to decreased inflammation? |
|
Definition
1. Phospholipase A2 is prevented from releasing arachidonic acid 2. Decreases protein synthesis thus lowering amount of Cyclooxygenase enzymes |
|
|
Term
What are two toxicities associated with Cyclosporine? |
|
Definition
1. Predisposes to viral infections and lymphoma 2. Nephrotoxic (preventable with mannitol diuresis) |
|
|
Term
What are two toxicities of the Glitazones? |
|
Definition
1. Weight gain 2. Hepatotoxicity (troglitazone) |
|
|
Term
What are two toxicities of the Sulfonylureas? |
|
Definition
1. Hypoglycemia (more common with 2ndgeneration drugs: glyburide, glipizide) 2. Disulfiram-like effects (not seen with 2nd-generation drugs). |
|
|
Term
What are two types of drugs that interfere with the action of Sucralfate and why? |
|
Definition
Sucralfate cannot work in the presence of antacids or H2 blockers because it requires an acidic environment to polymerize. |
|
|
Term
What can result due to antacid overuse? |
|
Definition
Can affect absorption, bioavailability, or urinary excretion of other drugs by altering gastric and urinary pH or by delaying gastric emptying. |
|
|
Term
What enzyme does Zileuton inhibit? |
|
Definition
|
|
Term
What enzymes are inhibited by NSAIDs, acetaminophen and COX II inhibitors? |
|
Definition
Cyclooxygenases (COX I, COX II). |
|
|
Term
What is a common side effect of Colchicine used to treat acute gout, especially when given orally? |
|
Definition
GI side effects. (Note: Indomethacin is less toxic, more commonly used.) |
|
|
Term
What is a common side effect of Misoprostol? |
|
Definition
|
|
Term
What is a possible result of overdose of Acetaminophen? |
|
Definition
Overdose produces hepatic necrosis; acetaminophen metablolite depletes glutathione and forms toxic tissue adducts in liver. |
|
|
Term
What is a possible toxicity of Alpha-glucosidase inhibitors used in type-2 diabetes? |
|
Definition
|
|
Term
What is a possible toxicity of Ticlopidine, Clopidogrel usage? |
|
Definition
Neutropenia (ticlopidine); reserved for those who cannot tolerate aspirin. |
|
|
Term
What is a sign of toxicity with the use of thrombolytics? |
|
Definition
|
|
Term
What is action of insulin in the liver, in muscle, and in adipose tissue? |
|
Definition
1. In liver, increases storage of glucose as glycogen. 2. In muscle, stimulates glycogen and protein synthesis, and K + uptake. 3. In adipose tissue, facilitates triglyceride storage. |
|
|
Term
What is are two clinical uses of Cyclosporine? |
|
Definition
1. Suppresses organ rejection after transplantation 2. Selected autoimmune disorders. |
|
|
Term
What is the category and mechanism of action of Zafirlukast in Asthma treatment? |
|
Definition
Antileukotriene; blocks leukotriene receptors. |
|
|
Term
What is the category and mechanism of action of Zileuton in Asthma treatment? |
|
Definition
Antileukotriene; blocks synthesis by lipoxygenase. |
|
|
Term
What is the category of drug names ending in - ane (e.g. Halothane) |
|
Definition
Inhalational general anesthetic. |
|
|
Term
What is the category of drug names ending in - azepam (e.g. Diazepam) |
|
Definition
|
|
Term
What is the category of drug names ending in - azine (e.g. Chlorpromazine) |
|
Definition
Phenothiazine (neuroleptic, antiemetic). |
|
|
Term
What is the category of drug names ending in - azol (e.g. Ketoconazole) |
|
Definition
|
|
Term
What is the category of drug names ending in - barbital (e.g. Phenobarbital) |
|
Definition
|
|
Term
What is the category of drug names ending in - caine (e.g. Lidocaine) |
|
Definition
|
|
Term
What is the category of drug names ending in - cillin (e.g. Methicillin) |
|
Definition
|
|
Term
What is the category of drug names ending in - cycline (e.g. Tetracycline) |
|
Definition
Antibiotic, protein synthesis inhibitor. |
|
|
Term
What is the category of drug names ending in - ipramine (e.g. Imipramine) |
|
Definition
Tricyclic antidepressant. |
|
|
Term
What is the category of drug names ending in - navir (e.g. Saquinavir) |
|
Definition
|
|
Term
What is the category of drug names ending in - olol (e.g. Propranolol) |
|
Definition
|
|
Term
What is the category of drug names ending in - operidol (e.g. Haloperidol) |
|
Definition
Butyrophenone (neuroleptic). |
|
|
Term
What is the category of drug names ending in - oxin (e.g. Digoxin) |
|
Definition
Cardiac glycoside (inotropic agent). |
|
|
Term
What is the category of drug names ending in - phylline (e.g. Theophylline) |
|
Definition
|
|
Term
What is the category of drug names ending in -pril (e.g. Captopril) |
|
Definition
|
|
Term
What is the category of drug names ending in - terol (e.g. Albuterol) |
|
Definition
|
|
Term
What is the category of drug names ending in - tidine (e.g. Cimetidine) |
|
Definition
|
|
Term
What is the category of drug names ending in - triptyline (e.g. Amitriptyline) |
|
Definition
Tricyclic antidepressant. |
|
|
Term
What is the category of drug names ending in - tropin (e.g. Somatotropin) |
|
Definition
|
|
Term
What is the category of drug names ending in - zosin (e.g. Prazosin) |
|
Definition
|
|
Term
What is the category, desired effect, and adverse effect of Isoproterenol in the treatment of Asthma? |
|
Definition
Nonspecific beta-agonist; desired effect is the relaxation of bronchial smooth muscle (Beta 2). Adverse effect is tachycardia (Beta 1). |
|
|
Term
What is the category, desired effect, and period of use of albuterol in the treatment of Asthma? |
|
Definition
Beta 2 agonist; desired effect is the relaxation of bronchial smooth muscle (Beta 2). Use during acute exacerbation. |
|
|
Term
What is the category, desired effect, and possible mechanism of Theophylline in treating Asthma? |
|
Definition
Methylzanthine; desired effect is bronchodilation, may cause bronchodilation by inhibiting phosphodiesterase, enzyme involved in degrading cAMP (controversial). |
|
|
Term
What is the category, mechanism of action, and effect of Ipratroprium in Asthma treatment? |
|
Definition
Muscarinic antagonist; competatively blocks muscarinic receptors, preventing bronchoconstriction. |
|
|
Term
What is the category, mechanism of action, and particular use of beclomethasone and prednisone in Asthma treatment? |
|
Definition
Corticosteroids; prevent production of leukotrienes from arachodonic acid by blocking phospholipase A2. Drugs of choice in a patient with status asthmaticus (in combination with albuterol.) |
|
|
Term
What is the category, method of use, and adverse effects of Salmeterol in Asthma treatment? |
|
Definition
Beta 2 agonist; used as a long-acting agent for prophylaxis. Adverse effects are tremor and arrhythmia. |
|
|
Term
What is the clincial use for Misoprostol? |
|
Definition
Prevention of NSAIDinduced peptic ulcers, maintains a PDA. |
|
|
Term
What is the clinical use for Clomiphene? |
|
Definition
Treatment of infertility. |
|
|
Term
What is the clinical use for Heparin? |
|
Definition
Immediate anticoagulation for PE, stroke, angina, MI, DVT. |
|
|
Term
What is the clinical use for Sildenafil (Viagra)? |
|
Definition
|
|
Term
What is the clinical use for Sucralfate? |
|
Definition
|
|
Term
What is the clinical use for Warfarin? |
|
Definition
|
|
Term
What is the clinical use of Mifepristone (RU486)? |
|
Definition
|
|
Term
What is the clinical use of Tacrolimus (FK506)? |
|
Definition
Potent immunosuppressive used in organ transplant recipients. |
|
|
Term
What is the effect of the Glitazones in diabetes treatment? |
|
Definition
Increase target cell response to insulin. |
|
|
Term
What is the enzyme inhibited, the effect of this inhibition, and the clinical use of the antiandrogren Finasteride? |
|
Definition
Finasteride inhibits 5 Alpha-reductase, this decreases the conversion of testosterone to dihydrotestosterone, useful in BPH |
|
|
Term
What is the lab value used to monitor the effectiveness of Heparin therapy? |
|
Definition
|
|
Term
What is the lab value used to monitor the effectiveness of Warfarin therapy? |
|
Definition
|
|
Term
What is the main clinical use for the thrombolytics? |
|
Definition
Early myocardial infarction. |
|
|
Term
What is the mecanism of action of Sucralfate? |
|
Definition
Aluminum sucrose sulfate polymerizes in the acid environment of the stomach and selectively binds necrotic peptic ulcer tissue. Acts as a barrier to acid, pepsin, and bile. |
|
|
Term
What is the mecanism of action of the COX-2 inhibitors (celecoxib, rofecoxib)? |
|
Definition
Selectively inhibit cyclooxygenase (COX) isoform 2, which is found in inflammatory cells nad mediates inflammation and pain; spares COX-1 which helps maintain the gastric mucosa. |
|
|
Term
What is the mecanism of action, effective period, and ineffective period of use for Cromolyn in treating Asthma? |
|
Definition
Prevents release of mediators from mast cells. Effective only for the prophylaxis of asthma. Not effective during an acute attack. |
|
|
Term
What is the mechanism of action and clinical use of the antiandrogen Flutamide? |
|
Definition
Flutamide is a nonsteroidal competitive inhibitor of androgens at the testosterone receptor, used in prostate carcinoma. |
|
|
Term
What is the mechanism of action and clinical use of the antiandrogens Ketoconazole and Spironolactone? |
|
Definition
Inhibit steroid synthesis, used in the treatment of polycystic ovarian syndrome to prevent hirsutism. |
|
|
Term
What is the mechanism of action of Acetaminophen? |
|
Definition
Reversibly inhibits cyclooxygenase, mostly in CNS. Inactivated peripherally. |
|
|
Term
What is the mechanism of action of Allopurinol used to treat chronic gout? |
|
Definition
Inhibits xanthine oxidase, decresing conversion of xanthine to uric acid. |
|
|
Term
What is the mechanism of action of Aspirin? |
|
Definition
Acetylates and irreversibly inhibits cyclooxygenase (COX I and COX II) to prevent the conversion of arachidonic acid to prostaglandins. |
|
|
Term
What is the mechanism of action of Clomiphene? |
|
Definition
Clomiphene is a partial agonist at estrogen receptors in the pituitary gland. Prevents normal feedback inhibition and increses release of LH and FSHfrom the pituitary, which stimulates ovulation. |
|
|
Term
What is the mechanism of action of Colchicine used to treat acute gout? |
|
Definition
Depolymerizes microtubules, impairing leukocyte chemotaxis and degranulation. |
|
|
Term
What is the mechanism of action of Cyclosporine? |
|
Definition
Binds to cyclophilins (peptidyl proline cis-trans isomerase), blocking the differentiation and activation of T cells mainly by inhibiting the production of IL-2 and its receptor. |
|
|
Term
What is the mechanism of action of Heparin? |
|
Definition
Heparin catalyzes the activation of antithrombin III. |
|
|
Term
What is the mechanism of action of Mifepristone (RU486)? |
|
Definition
Competitive inibitor of progestins at progesterone receptors. |
|
|
Term
What is the mechanism of action of Misoprostol? |
|
Definition
Misoprostol is a PGE1 analog that increases the production and secretion of the gastic mucous barrier. |
|
|
Term
What is the mechanism of action of NSAIDs other than Aspirin? |
|
Definition
Reversibly inhibit cyclooxygenase (COX I and COX II). Block prostaglandin synthesis. |
|
|
Term
What is the mechanism of action of Omeprazole, Lansoprazole? |
|
Definition
Irreversibly inhibits H+/K+ ATPase in stomach parietal cells. |
|
|
Term
What is the mechanism of action of Probenacid used to treat chronic gout? |
|
Definition
Inhibits reabsorption of uric acid. |
|
|
Term
What is the mechanism of action of Colchicine used to treat acute gout? |
|
Definition
Depolymerizes microtubules, impairing leukocyte chemotaxis and degranulation. |
|
|
Term
What is the mechanism of action of Sildenafil (Viagra)? |
|
Definition
Inhibits cGMP phosphodiesterase, casuing increased cGMP, smooth muscle relaxation in the corpus cavernosum, increased blood flow, and penile erection. |
|
|
Term
What is the mechanism of action of the Alphaglucosidase inhibitors? |
|
Definition
Inhibit intestinal bursh border Alpha-glucosidases; delayed hydrolysis of sugars and absorption of sugars leading to decresed postprandial hyperglycemia. |
|
|
Term
What is the mechanism of action of the glucocorticoids? |
|
Definition
Decrease the production of leukotrienes and protaglandins by inhibiting phospholipase A2 and expression of COX-2. |
|
|
Term
What is the mechanism of action of the H2 Blockers? |
|
Definition
Reversible block of histamine H2 receptors |
|
|
Term
What is the mechanism of action of the Sulfonylureas? |
|
Definition
Close K+ channels in Beta-cell membrane leading to cell depolarization causing insulin release triggered by increase in Calcium ion influx. |
|
|
Term
What is the mechanism of action of the thrombolytics? |
|
Definition
Directly of indirectly aid conversion of plasminogen to plasmin which cleaves thrombin and fibrin clots. (It is claimed that tPA specifically converts fibrinbound plasminogen to plasmin.) |
|
|
Term
What is the mechanism of action of Ticlopidine, Clopidogrel |
|
Definition
Inhibits platelet aggregation by irreversibly inhibiting the ADP pathway involved in the binding of fibrinogen. |
|
|
Term
What is the mechanism of action of Warfarin (Coumadin)? |
|
Definition
Warfarin interferes with the normal synthesis and gamma-carboxylation of vitamin K-dependent clotting factors II, VII, IX, and X, Protein C and S via vitamin K antagonism. |
|
|
Term
What is the mechanism of Azathioprine? |
|
Definition
Antimetabolite derivative of 6-mercaptopurine that interferes with the metablolism and synthesis of nucleic acid. |
|
|
Term
What is the mechanism of Leuprolide? |
|
Definition
GnRH analog with agonist properties when used in pulsatile fashion and antagonist properties when used in continuous fashion, causing a transient initial burst of LH and FSH |
|
|
Term
What is the mechanism of Tacrolimus (FK506)? |
|
Definition
Similar to cyclosporine; binds to FK-binding protein, inhibiting secretion of IL-2 and other cytokines. |
|
|
Term
What is the memory key for the action of Sildenafil (Viagra)? |
|
Definition
Sildenafil fills the penis |
|
|
Term
What is the memory key for the effect of aluminum hydroxide overuse? |
|
Definition
AluMINIMUM amount of feces. |
|
|
Term
What is the memory key for the effect of magnesium hydroxide overuse? |
|
Definition
Mg = Must go to the bathroom. |
|
|
Term
What is the memory key to remember which pathway (extrinsic vs. intrinsic) and which lab value Warfarin affects? |
|
Definition
WEPT: Warfarin affects the Extrinsic pathway and prolongs the PT. |
|
|
Term
What is the possible mechanism and effect of Metformin in treating diabetes? |
|
Definition
Mechanism unknown; possibly inhibits gluconeogenesis and increases glycolysis; effect is to decrease serum glucose levels |
|
|
Term
What is the specific clinical use of Indomethacin in neonates? |
|
Definition
Indomethacin is used to close a patent ductus arteriosus. |
|
|
Term
What is used to reverse the action of Heparin? |
|
Definition
Protamine Sulfate is used for rapid reversal of heparinization (positively charged molecule that binds to negatively charged heparin). |
|
|
Term
What patients are at risk for life threatening hypotension when taking Sildenafil (Viagra)? |
|
Definition
Those patients who are taking nitrates. |
|
|
Term
What process does Zafirlukast interfere with? |
|
Definition
Leukotrienes increasing bronchial tone. |
|
|
Term
What type of gout is treated with Allopurinol? |
|
Definition
|
|
Term
What type of gout is treated with Colchicine? |
|
Definition
|
|
Term
What type of gout is treated with Probenacid? |
|
Definition
|
|
Term
What type of patient should not take Misoprostol and why? |
|
Definition
Misoprostol is contraindicated in women of childbearing potential because it is an abortifacient. |
|
|
Term
Which H2 Blocker has the most toxic effects and what are they? |
|
Definition
Cimetidine is a potent inhibitor of P450; it also has an antiandrogenic effect and decreases renal excretion of creatinine. Other H2 blockers are relatively free of these effects. |
|
|
Term
Why are the Sulfonylureas inactive in IDDM (type-1)? |
|
Definition
Because they require some residual islet function. |
|
|
Term
Acetaldehyde is metabolized by Acetaldehyde dehydrogenase, which drug inhibs this enzyme? |
|
Definition
-Disulfram & also sulfonylureas, metronidazole |
|
|
Term
Explain pH dependent urinary drug elimination? |
|
Definition
-Weak Acids>Alkinalize urine(CO3) to remove more -Weak bases>acidify urine to remove more |
|
|
Term
How do you treat coma in the ER (4)? |
|
Definition
-Airway -Breathing - Circulation -Dextrose (thiamine &narcan) - ABCD |
|
|
Term
In coma situations you rule out what (7)? |
|
Definition
-Infections -Trauma - Seizures -CO -Overdose - Metabolic -Alcohol (IT'S COMA) |
|
|
Term
List some specifics of lead poisoning(4)? |
|
Definition
-A57Blue lines in gingiva& long bones -Encephalopathy & Foot drop -Abdominal colic / -Sideroblastic anemia |
|
|
Term
List the specific antidote for this toxin: Acetaminophen |
|
Definition
|
|
Term
List the specific antidote for this toxin: Amphetamine |
|
Definition
|
|
Term
List the specific antidote for this toxin: Anticholinesterases (organophosphate.) |
|
Definition
|
|
Term
List the specific antidote for this toxin: Antimuscarinic (anticholinergic) |
|
Definition
-Physostigmine salicylate |
|
|
Term
List the specific antidote for this toxin: Arsenic (all heavy metals) |
|
Definition
|
|
Term
List the specific antidote for this toxin: Benzodiazepines |
|
Definition
|
|
Term
List the specific antidote for this toxin: Beta Blockers |
|
Definition
|
|
Term
List the specific antidote for this toxin: Carbon monoxide |
|
Definition
|
|
Term
List the specific antidote for this toxin: Copper |
|
Definition
|
|
Term
List the specific antidote for this toxin: Cyanide |
|
Definition
-Nitrate, hydroxocobalamin thiosulfate |
|
|
Term
List the specific antidote for this toxin: Digitalis |
|
Definition
-Normalize K+, Lidocaine, & Anti-dig Mab |
|
|
Term
List the specific antidote for this toxin: Heparin |
|
Definition
|
|
Term
List the specific antidote for this toxin: Iron |
|
Definition
|
|
Term
List the specific antidote for this toxin: Lead |
|
Definition
-EDTA, dimercaprol, succimer, & penicillamine |
|
|
Term
List the specific antidote for this toxin: Methanol & Ethylene glycol |
|
Definition
-Ethanol, dialysis, & fomepizole |
|
|
Term
List the specific antidote for this toxin: Methemoglobin |
|
Definition
|
|
Term
List the specific antidote for this toxin: Opioids |
|
Definition
-B51Naloxone / naltrexone (Narcan) |
|
|
Term
List the specific antidote for this toxin: Salicylates |
|
Definition
-Alkalinize urine & dialysis |
|
|
Term
List the specific antidote for this toxin: TPA & Streptokinase |
|
Definition
|
|
Term
List the specific antidote for this toxin: Tricyclic antidepressants |
|
Definition
|
|
Term
List the specific antidote for this toxin: Warfarin |
|
Definition
-Vitamin K & fresh frozen plasma |
|
|
Term
What are the products and their toxicities of the metabolism of ethanol by / alcohol dehydrogenase? |
|
Definition
-Acetaldehyde -Nausea, vomiting, headache, & hypotension |
|
|
Term
What are the products and their toxicities of the metabolism of Ethylene Glycol by / alcohol dehydrogenase? |
|
Definition
-Oxalic acid -Acidosis & nephrotoxicity |
|
|
Term
What are the products and their toxicities of the metabolism of Methanol by / alcohol dehydrogenase? |
|
Definition
-Formaldehyde & formic acid -severe acidosis & retinal damage |
|
|
Term
Which drug(s) cause this reaction: Adrenocortical Insufficiency |
|
Definition
-Glucocorticoid withdrawal |
|
|
Term
Which drug(s) cause this reaction: Agranulocytosis (3)? |
|
Definition
-Cloazapine - carbamazapine -colchicine -PTU |
|
|
Term
Which drug(s) cause this reaction: Anaphylaxis? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Aplastic anemia (5)? |
|
Definition
-Chloramphenicol - benzene -NSAIDS -PTU - phenytoin |
|
|
Term
Which drug(s) cause this reaction: Atropine-like side effects? |
|
Definition
-Tricyclic antidepressants |
|
|
Term
Which drug(s) cause this reaction: Cardiac toxicity? |
|
Definition
-Daunorubicin & Doxorubicin |
|
|
Term
Which drug(s) cause this reaction: Cinchonism (2)? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Cough? |
|
Definition
-ACE inhibitors (Losartan>no cough) |
|
|
Term
Which drug(s) cause this reaction: Cutaneous flushing (4)? |
|
Definition
-Niacin -Ca++ channel blockers -adenosine - vancomycin |
|
|
Term
Which drug(s) cause this reaction: Diabetes insipidus? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Disulfram-like reaction (4) ? |
|
Definition
-Metronidazole -certain cephalosporins - procarbazine - sulfonylureas |
|
|
Term
Which drug(s) cause this reaction: Drug induced Parkinson's (4) ? |
|
Definition
-Haloperidol - chlorpromazine -reserpine -MPTP |
|
|
Term
Which drug(s) cause this reaction: Extrapyramidal side effects (3)? |
|
Definition
-Chlorpromazine - thioridazine -haloperidol |
|
|
Term
Which drug(s) cause this reaction: Fanconi's syndrome? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Focal to massive hepatic necrosis (4)? |
|
Definition
-Halothane -Valproic acid -acetaminophen -Amantia phalloides |
|
|
Term
Which drug(s) cause this reaction: G6PD hemolysis (8)? |
|
Definition
-Sulfonamides -INH -ASA -Ibuprofen -primaquine - nitrofurantoin /- pyrimethamine - chloramphenicol |
|
|
Term
Which drug(s) cause this reaction: Gingival hyperplasia? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Gray baby syndrome? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Gynecomastia (6) ? |
|
Definition
-Cimetidine -ketoconazole -spironolactone -digitalis -EtOH -estrogens |
|
|
Term
Which drug(s) cause this reaction: Hepatitis? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Hot flashes? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Neuro and Nephrotoxic? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Osteoporosis (2)? |
|
Definition
-Corticosteroids -heparin |
|
|
Term
Which drug(s) cause this reaction: Oto and Nephrotoxicity (3)? |
|
Definition
-aminoglycosides -loop diuretics -cisplatin |
|
|
Term
Which drug(s) cause this reaction: P450 induction (6)? |
|
Definition
-Barbiturates -phenytoin - carbamazipine -rifampin - griseofulvin -quinidine |
|
|
Term
Which drug(s) cause this reaction: P450 inhibition (6)? |
|
Definition
-Cimetidine -ketoconazole -grapefruit juice - erythromycin -INH - sulfonamides - Valproic Acid |
|
|
Term
Which drug(s) cause this reaction: Photosensitivity (3)? |
|
Definition
-Tetracycline -amiodarone -sulfonamides |
|
|
Term
Which drug(s) cause this reaction: Pseudomembranous colitis? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Pulmonary fibrosis(3)? |
|
Definition
-Bleomycin -amiodarone - busulfan |
|
|
Term
Which drug(s) cause this reaction: SLE-like syndrome |
|
Definition
-Hydralazine - Procainamide -INH - phenytoin |
|
|
Term
Which drug(s) cause this reaction: Stevens-Johnson syn. (3) ? |
|
Definition
-Ethosuxamide - sulfonamides -lamotrigine |
|
|
Term
Which drug(s) cause this reaction: Tardive dyskinesia? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Tendonitis and rupture? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Thrombotic complications? |
|
Definition
|
|
Term
Which drug(s) cause this reaction: Torsade de pointes (2) ? |
|
Definition
-Class III antiarrhythmics (sotalol) -class IA (quinidine) |
|
|
Term
Which drug(s) cause this reaction: Tubulointerstitial Nephritis (5)? |
|
Definition
-Sulfonamides - furosemide -methicillin - rifampin -NSAIDS (ex. ASA) |
|
|
Term
Describe first-order kinetics? |
|
Definition
Constant FRACTION eliminated per unit time. (exponential) |
|
|
Term
Describe Phase I metabolism in liver(3)? |
|
Definition
-reduction, oxy, & hydrolysis -H2O sol. Polar product -P450 |
|
|
Term
Describe Phase II metabolism in liver(3)? |
|
Definition
-acetylation, glucuron.,& sulfation -Conjugation -Polar product |
|
|
Term
Explain differences between full and partial agonists(2). |
|
Definition
- Act on same receptor - Full has greater efficacy |
|
|
Term
Explain potency in relation to full and partial agonists (2). |
|
Definition
- partial agonist can have increased, decreased, / A21or equal potency as full agonist. - Potency is an independent factor. |
|
|
Term
How do spare receptors effect the Km? |
|
Definition
- ED 50 is less than the Km (less than 50% of receptors) |
|
|
Term
How do you calculate maintenance dose? |
|
Definition
Md= (CpxCL)/F Cp= plas. Conc. CL=clear. F=bioaval. |
|
|
Term
How does a competitive antagonist effect an agonist? |
|
Definition
-Shifts the curve to the right -increases Km |
|
|
Term
How does a noncompetitive antagonist effect an agonist? |
|
Definition
- Shifts the curve down - reduces Vmax |
|
|
Term
Name the steps in drug approval(4)? |
|
Definition
-Phase I (clinical tests) - Phase II -Phase III -PhaseIV (surveillance) |
|
|
Term
Steady state concentration is reached in __#half-lifes |
|
Definition
In 4 half-lifes= (94%) T1/2 = (0.7x Vd)/CL |
|
|
Term
What is the definition of zero-order kinetics? Example? |
|
Definition
-Constant AMOUNT eliminated per unit time. - Etoh &ASA |
|
|
Term
What is the formula for Clearance (CL) |
|
Definition
CL= (rate of elimination of drug/ Plasma drug conc.) |
|
|
Term
What is the formula for Volume of distribution (Vd) |
|
Definition
Vd= (Amt. of drug in body/ Plasma drug conc.) |
|
|
Term
What is the loading dose formula? |
|
Definition
Ld= (CpxVd)/F Cp=plasma conc. F= Bioaval. |
|
|
Term
A 12yo patient was treated for a reaction to a bee sting, what drug provides the best coverage of sympathomimetic receptors? |
|
Definition
Epinephirine(Alpha1,2 and Beta 1,2) |
|
|
Term
A 57 yo heart failure pt develops cardiac decompensation, what drug will give you adequate perfusion of his kidneys as well as tx for his Hypotension |
|
Definition
|
|
Term
A fellow passenger on a Carnival cruise ship looks pale and diaphoretic, what antimuscarinic agent would you give them? |
|
Definition
|
|
Term
A group of pts are rushed into the ER complaining of excessive sweating, tearing, salivation, HA, N and V, muscle twitching, difficulty breathing and diarrhea. What drug would be the most effective immediate tx |
|
Definition
Atropine pts are suffering from Cholinestrase inhibitor poisining(Nerve gas/Organophosphate poisining) |
|
|
Term
As an Anes you want to use a depolarizing neuromuscular blocking drug on your pt, what do you use |
|
Definition
|
|
Term
By what mechanism does this drug help |
|
Definition
Prevents the release of Ca from SR of skeletal muscle |
|
|
Term
Clonidine is the preferred sym pathomimetic tx of HTN in pts with renal disease, why?? |
|
Definition
Centrally acting alpha agonist, thus causing a decrease in central adrenergic outflow, spairing renal blood flow |
|
|
Term
Cocaine casues vasoconstriction and local anesthesia by what mechanism |
|
Definition
Indirect agonist, uptake inhibitor |
|
|
Term
Cocaine shares is mechanism of action with what antidepressant |
|
Definition
|
|
Term
Dobutamine used for the tx of shock acts on which receptors |
|
Definition
|
|
Term
Guanethidine enhances the release of Norepi? |
|
Definition
No, it inhibits the release of Nor Epi |
|
|
Term
How does angiotensin II affect NE release? |
|
Definition
It acts presynaptically to increase NE release. |
|
|
Term
How does botulinum toxin result in respiratory arrest? |
|
Definition
Prevents the release of ACh, which results in muscle paralysis. |
|
|
Term
|
Definition
Prevents the release of calcium from the sarcoplasmic reticulum of skeletal muscle. |
|
|
Term
How does NE modulate its own release? What other neurotransmitter has this same effect? |
|
Definition
NE acts presynaptically on alpha-2 receptors to inhibit its own release. ACh also acts presynaptically through M1 receptors to inhibit NE release. |
|
|
Term
How would hemicholinium treatment affect cholinergic neurons? |
|
Definition
Hemicholinium inhibits the transport of choline into the nerve, thus inhibiting formation of ACh. |
|
|
Term
How would you reverse the effect of a neuromuscular blocking agent? |
|
Definition
Give an antichloinesterase - neostigmine, edrophonium, etc |
|
|
Term
If a patient is given hexamethonium, what would happen to his/her heart rate? |
|
Definition
It would increase to ~ 100 beats/min. Both sympathetic and vagal stimulation would be knocked out, but the SA node has an intrinsic pace of 100 beats/min, which is normally checked by vagal stimulation. |
|
|
Term
Isopoterenol was given to a patient with a developing AV block, why? |
|
Definition
Stimulates beta adrenergic receptors |
|
|
Term
Norepi feedbacks and inhibits the presynaptic receptor by what mechanism |
|
Definition
Binding to the presynaptic alpha 2 release modulating receptors |
|
|
Term
Reserpine will block the syntheis of this drug and but not its precursor. |
|
Definition
Blocks Norepi, but not Dopamine |
|
|
Term
These drugs acts indirectly by releasing strored catecholamines in the presynaptic terminal |
|
Definition
|
|
Term
What anticholinesterase crosses the blood-brainbarrier? |
|
Definition
|
|
Term
What antimuscarinic agent is used in asthma and COPD? |
|
Definition
|
|
Term
What antimuscarinic drug is useful for the tx of asthma |
|
Definition
|
|
Term
What are the classic symptoms of cholinesterase inhibitor poisoning (parathion or other organophosphates)? |
|
Definition
Diarrhea, Urination, Miosis, Bronchospasm, Bradycardia, Excitation of skeletal muscle and CNS, Lacrimation, Sweating, and Salivation = DUMBBELS; also abdominal cramping |
|
|
Term
What are the clinical indications for bethanechol? |
|
Definition
Activates cholinergic receptors on bladder and bowel smooth muscle, alleviating post-op and neurogenic ileus and urinary retention. |
|
|
Term
What are the clinical indications for neostigmine? |
|
Definition
Post-op and neurogenic ileus and urinary retention, myasthenia gravis, and reversal of neuromuscular junction blockade (postop) through anticholinesterase activity. |
|
|
Term
What are the indications for using amphetamine? |
|
Definition
narcolepsy, obesity, and attention deficit disorder (I wouldn't recommend this) |
|
|
Term
What are the nondepolarizing neuromuscular blocking drugs? |
|
Definition
Tubocurarine, atracurium, mivacurium, pancuronium, vecuronium, rapacuronium |
|
|
Term
What are the phases of succinylcholine neuromuscular blockade? |
|
Definition
Phase 1 = prolonged depolarization, no antidote, effect potentiated by anticholinesterase; Phase 2 = repolarized but blocked, an anticholinesterase is the antidote for this phase. |
|
|
Term
What are two indirect acting adrenergic agonists? |
|
Definition
|
|
Term
What beta 2 agonist will help your 21yo Astma pt? |
|
Definition
|
|
Term
What cholinergic inhibitor acts by directly inhibiting Ach release at the presynaptic terminal |
|
Definition
|
|
Term
What cholinomimetic is useful in the diagnosis of Myasthenia Gravis |
|
Definition
|
|
Term
What cholinomimetics might your pt be taking for his glaucoma |
|
Definition
Carbachol, pilocarpine, physostigmine, echothiophate |
|
|
Term
What class of drug is echothiophate? What is its indication? |
|
Definition
anticholinesterase glaucoma |
|
|
Term
What conditions would you use dantrolene? |
|
Definition
In treatment of malignant hyperthermia, due to concomitant use of halothane and succinylcholine. Also in neuroleptic malignant syndrome, a toxicity of antipsychotic drugs. |
|
|
Term
What drug is used to diagnose myasthenia gravis? |
|
Definition
edrophonium (extremely short acting anticholinesterase) |
|
|
Term
What drugs target this enzyme |
|
Definition
Neostigmine, pyridostigmine edrophonium physostigmine echothiophate |
|
|
Term
What effect would atropine have on a patient with peptic ulcer disease? |
|
Definition
Theoretically it could be used to block the cephalic phase of acid secretion (vagal stimulation). |
|
|
Term
What effect would atropine have on the preganglionic sympathetic activation of sweat glands? Would this person sweat? |
|
Definition
None. No, because atropine would block the postganglionic muscarinic receptors involved in sweat gland stimulation. |
|
|
Term
What enzyme is responsible for the breakdown of ACh in the synaptic cleft? |
|
Definition
Acetylcholinesterase; ACh is broken down into choline and acetate. |
|
|
Term
What enzyme is responsible for the degredation of Ach |
|
Definition
|
|
Term
What enzyme is responsible for the production of Ach from Acetyl CoA and Choline |
|
Definition
Choline acetyltransferase |
|
|
Term
hat is the clinical utility of clonidine? |
|
Definition
Treatment of hypertension, especially with renal disease (lowers bp centrally, so flow is maintained to kidney). |
|
|
Term
What is the clinical utility of cocaine? |
|
Definition
The only local anesthetic with vasoconstrictive properties. |
|
|
Term
* What is the difference between the affinity for beta receptors between albuterol/terbutaline and dobutamine? |
|
Definition
Dobutamine has more of an affintiy for beta-1 than beta-2, and is used for treating heart failure and shock. Albuterol and terbutaline is the reverse, and is used in treatment of acute asthma. |
|
|
Term
What is the difference in receptor affinity of epinephrine at low doses? High doses? |
|
Definition
Prefers beta's at low doses, but at higher doses alpha agonist effects are predominantly seen. |
|
|
Term
What is the effect of epinephrine infusion on bp and pulse pressure? |
|
Definition
Increased systolic and pulse pressure, decreased diastolic pressure, and little change in mean pressure. |
|
|
Term
What is the effect of guanethidine on adrenergic NE release? |
|
Definition
It inhibits release of NE. |
|
|
Term
What is the effect of norepinephrine on bp and pulse pressure? |
|
Definition
Increases mean, systolic, and diastolic bp, while there is little change in pulse pressure. |
|
|
Term
What is the effect of TCA's on the adrenergic nerve? |
|
Definition
They inhibit reuptake of NE at the nerve terminal (as does cocaine). |
|
|
Term
What is the only depolarizing neuromuscular blocking agent? |
|
Definition
|
|
Term
What is the receptor affinity and clinical use of isoproterenol? |
|
Definition
It affects beta receptors equally and is used in AV heart block (rare). |
|
|
Term
* Ipratropium; What makes this drug effective |
|
Definition
It antagonizes Ach M receptors and decreases parasym (GI) rxn |
|
|
Term
What nondepolorizing agents could you have used |
|
Definition
Tubocurarine, atra-, miv-, pan-,ve-, rapacuronium |
|
|
Term
What other substances regulate the Norepi nerve ending |
|
Definition
|
|
Term
* Dantrolene; What other syndrome can this drug tx |
|
Definition
Neuroleptic malignant syndrome |
|
|
Term
What physiological effects was the Anes using Atropine to tx |
|
Definition
SLUD (salivation, Lacrimation, urination, Defecation)as well as airway secretion, GI motility, acid secretions |
|
|
Term
What reversal agent could a Anes give to reverse the effects of Atropine |
|
Definition
Bethanechol, Neostigmine, physostigmine |
|
|
Term
What side effect of using atropine to induce pupillary dilation would you expect? |
|
Definition
Atropine would also block the receptors in the ciliary muscle, causing an impairment in accommodation (cycloplegia). |
|
|
Term
What sympathomimetic would you not prescribe for hypotension in a pt with renal artery sclerosis. |
|
Definition
Norepinephrine (Alpha1,2 and beta 1) |
|
|
Term
What type of neurological blockade would hexamethonium create? |
|
Definition
Hexamethonium is a nicotinic antagonist, and thus is a ganglionic blocker. |
|
|
Term
What would be the effect on blood pressure with infusion of the alpha -2 agonist clonidine? |
|
Definition
Initially vasoconstriction would increase bp, but then it acts on central alpha-2 receptors to decrease adrenergic outflow resulting in decreased bp. |
|
|
Term
* After full atropinization in case of organophosph poisoning, What would be the next drug that you would give and why |
|
Definition
Pralidoxime, regenerates active cholinestrase |
|
|
Term
Which antimuscarinic agents are used in producing mydriasis and cycloplegia? |
|
Definition
atropine, homatropine, tropicamide |
|
|
Term
Which drug increases Sys BP w/o affecting Pulse Pressure |
|
Definition
|
|
Term
Which of epi, norepi, or isoproterenol results in bradycardia? |
|
Definition
|
|
Term
Which of the following would atropine administration cause? Hypothermia, bradycardia, excess salivation, dry flushed skin, or diarrhea |
|
Definition
Dry flushed skin, due to inhibition of sympathetic post-ganglionic blockade on muscarinic receptors of sweat glands. All others are opposite of what would be expected. |
|
|
Term
Which of these three drugs will cause a reflex bradycardia in your pt (Norepi, Epi, or Isoporterenol) |
|
Definition
|
|
Term
Which receptors does phenylephrine act upon? |
|
Definition
alpha-1 > alpha-2; used as a pupil dilator, vasoconstrictor, and for nasal decongestion |
|
|
Term
While at a tail gait party, you bite into a sandwich that a yellow jacket is also enjoying. Knowing your allergy to this creature, what should you do? |
|
Definition
Epinephrine to treat anaphylaxis. Also useful if you have open angle glaucoma, asthma, or hypotension. |
|
|
Term
Why are albuterol and terbutaline effective in tx of acute asthmatic attacks? |
|
Definition
These B-2 agonists cause respiratory smooth muscle to relax. |
|
|
Term
Why does atropine dilate the pupil? |
|
Definition
Blocking muscarinic receptors in the circular fibers of the eye, results in unopposed action of radial muscles to dilate. |
|
|
Term
Why does NE result in bradycardia? |
|
Definition
NE increases bp, which stimulates baroreceptors in the carotid sinus and the aorta. The CNS signals through vagal stimulation to decrease heart rate. |
|
|
Term
Why is carbachol and pilocarpine useful in treatment of glaucoma? |
|
Definition
They activate the ciliary muscle of the eye (open angle) and pupillary sphincter (narrow angle). |
|
|
Term
Why is pyridostigmine effective in the treatment of myasthenia gravis? |
|
Definition
As an anticholinesterase it increases endogenous ACh and thus increases strength. |
|
|
Term
Why is reserpine effective in treating HTN? |
|
Definition
Reserpine inhibits dopamine transport into vesicles, attenuating its conversion to NE by dopamine betahydroxylase. |
|
|
Term
Why is there a drop in systolic, mean, and diastolic bp with infusion of isoproterenol? |
|
Definition
Stimulating beta receptors stimulates heart rate, but beta receptor induced vasodilation reduces peripheral resistance. |
|
|
Term
Why would a patient with cog-wheel rigidity and a shuffling gait be given benztropine? |
|
Definition
Parkinson patients benefit from antimuscarinic agents through its inhibitory action within the indirect pathway. |
|
|
Term
Why would dopamine be useful in treating shock? |
|
Definition
Receptors = D1=D2>beta>alpha, thus increasing heart rate (beta) and blood pressure (alpha vasoconstriction) while maintaining kidney perfusion (dopamine receptors) |
|
|
Term
Why would you give a drug like pancuronium or succinylcholine? |
|
Definition
Useful in muscle paralysis during surgery or mechanical ventilation. |
|
|
Term
Why would you use pralidoxime after exposure to an organophosphate? |
|
Definition
Pralidoxime regenerates active cholinesterase. |
|
|
Term
Will Hemicholinum affect the release of stored Ach during Cholinergic Stimulation |
|
Definition
No, hemicholinum block the uptake of Choline and thus Ach synthesis |
|
|
Term
Would blockade of muscarininc receptors in the bladder be useful in treating urinary retention? |
|
Definition
No. Atropine is used to reduce urgency in mild cystitis. So it would aggravate the urinary retention. |
|
|
Term
Would Hexamethonium be an effective substitute |
|
Definition
No, hexamethonium targets Nicotinc receptors and will block Parasym, Sym, as well as Somatic systems |
|
|
Term
You tx your pt with halothane as well and he has also developed malignant hypothermia, what drug can you give |
|
Definition
|
|
Term
Your patient develops a marked arrythmia due to a prolonged depolarization, can you tx this w/ Neostigmine |
|
Definition
No cholinesterase inhibitors will potentiate the stimulating action of Succinlycholine |
|
|
Term
Your patient has acute angle glaucoma, does this affect your tx |
|
Definition
Yes, Scopolamine would antagonize his glaucoma |
|
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Term
Your patient wants an effective drug to treat his motion sickness, what would you prescribe |
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Definition
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