Term
Your patient had an MI. When is he eligible for noncardiovascular surgery? |
|
Definition
- must defer surgery for 6 mos
- pt should have a stress test at that time
MTB p. 379 |
|
|
Term
If a patient has a history of cardiac disease, which tests are required prior to surgery? |
|
Definition
- EKG
- stress testing
- echo for structural disease and to assess ejection fraction.
MTB p. 380 |
|
|
Term
What are the ssx of pulmonary contusion? |
|
Definition
- not clinically evident immediately after injury
- hours later → hypoxia and respiratory distress 2° to pulmonary edema setting in.
- pulmonary edema can be hastened by IV fluids.
UW4537
|
|
|
Term
What must be considered if tachypnea lasts > 4 hrs in a newborn? |
|
Definition
- sepsis
- blood and urine cultures.
- LP is newborn displays neurological signs such as irritability, lethargy. temp irregularity, and feeding problems.
MTB p. 407 |
|
|
Term
What is the difference between Erb-Duchenne palsy and Klumpke paralysis? |
|
Definition
- Erb (C5-6): waiter's tip appearance 2° to shoulder dystocia (anterior shoulder gets stuch behind pubic bone); infant unable to abduct or externally rotate & supinate arm.
- Klumpke (C7-8, T1): claw hand with Horner's syndrome (ptosis, miosis, anhydrosis).
MTB p. 408 |
|
|
Term
What are the hallmark features of neuroblastoma? |
|
Definition
- hypsarrythmia (dancing eyes)
- opsoclonus (dancing feet)
- ↑ vanillyl mandelic acid (VMA) and metanephrines
MTB p. 410 |
|
|
Term
What congenital heart conditions → holosystolic murmurs? |
|
Definition
- there are only 3
- mitral regurgitation
- tricuspid regurgitation
- VSD (common in Down-21, Edward-18, Patau-13)
MTB p. 413 |
|
|
Term
How is congenital adrenal hyperplasia dx at birth? |
|
Definition
- serum electrolytes
- ↑ 17-OH progesterone
MTB p. 431 |
|
|
Term
What 2 congenital heart conditions can → pulmonary HTN? |
|
Definition
- truncus arteriosus (there is only 1 semilunar valve)
- VSD → Eisenmenger syndrome
MTB p. 415 |
|
|
Term
12-year-old boy with syncope, hearing loss since birth, family hx of sudden cardiac death, AVSS on exam. |
|
Definition
- Long QT syndrome
- there are 13 differenty types, but no the above presentation.
MTB p. 418 |
|
|
Term
What are the radiologic signs frequently associated with pyloric stenosis? |
|
Definition
- String sign: thin column of barium leaking through tightened muscle.
- Shoulder sign: filling defect in antrum due to prolapse of muscle inward.
- Mushroom sign: hypertrophic pylorus against duodenum.
- Railroad track sign: excess mucosa in pyloric lumen → 2 columns of barium.
- pyloric stenosis presents not at birth, but by the first month of life.
- auscultation will reveal a succussion splash: sound of stomach contents slapping into pylorus.
MTB p. 421 |
|
|
Term
CHARGE and VACTERL syndrome |
|
Definition
- Coloboma
- Heart defects
- Atresia of Choanae
- Retardation of growth or development
- Genital or urinary defects (hypogonadism)
- Ear anomalies/deafness
- Vertebral anomalies
- anal atresia
- cardiovascular anomalies
- tracheoesophageal fistula
- esophageal atresia
- renal anomalies
- limb anomalies
MTB p. 422 |
|
|
Term
What is the most common electrolyte abnormality with vomiting? |
|
Definition
- hypochloremic, hypokalemic, metabolic alkalosis
MTB p. 421 |
|
|
Term
What is intussusception associated with? |
|
Definition
- Rotavirus vaccine
- Henoch-Schölein purpura
- most commonly, however, with polyp, hard stool, or lymphoma.
- 10% will recur within 24hrs, child must be carefully observed.
MTB p. 425 |
|
|
Term
X-linked hypophosphatemia |
|
Definition
- innate kidney defect where it is unable to retain phosphate.
- vitamin D → reabsorption of both Ca2+ and PO4-
- normal calcium
- normal levels of 25(OH)-vitamin D and 1,25(OH)2- vitamin D.
- lack of PO4-→ inadequate bone mineralization
MTB p. 431 |
|
|
Term
What must you consider when a vignette describes a febrile seizure? |
|
Definition
- sepsis
- sepsis workup: CBC w/ diff, urine culture, UA, CXR, and LP.
- irritability or lethargy, also think meningitis
- tx: ampicillin and gentamicin
MTB p. 433 |
|
|
Term
What prophylactic abx should be administered to close contacts of a child with epiglottitis? |
|
Definition
- Haemophilus influenza type B
- rifampin for close contacts
- child: after intubation in OR → ceftrixone 7-10 days
MTB p. 436 |
|
|
Term
Describe the gravidity/parity nomenclature |
|
Definition
- G = # of pregnancies
- P = F-PAL
- full term, preterm, abortions, living
|
|
|
Term
What is the first sign of pregnancy found on physical exam? |
|
Definition
- Goodell sign: softening of cervix felt first at 4 weeks.
MTB p. 443 |
|
|
Term
How are ectopic pregnancies medically managed? |
|
Definition
- if not ruptured → 1st dose of methotrexate
- if > 15% ↓ β-hCG → observe
- if < 15% ↓ β-hCG → 2nd dose of methotrexate
- persistent ↑ levels of β-hCG → surgery
- Exclusion criteria for MTX: immunodeficiency, noncompliant pts (cannot be lost to f/u), liver disease (MTX = hepatotoxic), ectopic > 3.5 cm/fetal heart beat (↑ risk of tx failure).
MTB p. 449 |
|
|
Term
What are the different types of abortions? |
|
Definition
- Complete: no products of abortion found; f/u in office.
- Incomplete: some products of conception found; D&C/medical.
- Inevitable: products of conception intact, intrauterine bleeding, dilation of cervix; D&C/medical.
- Threatened: products of conception intact, intrauterine bleeding, no dilation of cervic; bed rest/pelvic rest.
- Missed: death of fetus, but all products of conception present in uterus; D&C/medical.
- Septic: infection of the uterus and surrounding areas; D&C + IV abx.
- Note: you can only answer these questions wih an U/S.
- medical tx = misoprostol (prostaglandin E1 analog) → dilates cervix, expels fetus.
MTB p. 451 |
|
|
Term
|
Definition
- it is a combination of contractions with cervical dilation.
- contractions → abdominal pain, lower back pain, or pelvic pain.
- occurs btw 20 and 37 weeks.
- cervical incompetence → no hx of contractions, but painless dilation of cervix.
MTB p. 452 |
|
|
Term
When should preterm labor be allowed to proceed without tocolysis? |
|
Definition
- maternal severe HTN
- maternal cardiac disease
- cervical dilation > 4 cm
- maternal hemorrhage (abruptio placenta, DIC)
- fetal death
- chorioamnionitis
- 34-37 weeks
MTB p. 453 |
|
|
Term
What is the procedure for premature rupture of membranes? |
|
Definition
- Term fetus w/ no chorioamnionitis → wait 6-12 hours for spontaneous delivery → then induce labor.
- preterm w/ no chorioamnionitis → betametasone, tocolytics, ampicillin + 1 dose azithromycin; penicillin rash → cefazolin + azithro; penicillin anaphylaxis → clindamycin + azithro.
- chorioamnionitis → immediate delivery.
MTB p. 455 |
|
|
Term
How does placenta previa present? |
|
Definition
- painless vaginal bleeding
- never perform a digintal vaginal exam for bleeding during the 3rd trimester; it can ↑ separation btw placenta and uterus → severe hemorrhage.
- placental abruption → painful vaginal bleeding.
MTB p. 455 |
|
|
Term
When is labor considered unstoppable? |
|
Definition
|
|
Term
When can fetal RBCs cross the placenta → Rh sensitization? |
|
Definition
- amniocentesis
- abortion
- vaginal bleeding
- placental abruption
- delivery
- Prophylaxis w/ RhoGAM at 28 weeks and delivery.
MTB p. 462 |
|
|
Term
|
Definition
- HTN that starts after 20 weeks
- no proteinuria or edema
- tx only during pregnancy w/ methyldopa, labetalol, or nifedipine.
MTB . p. 463 |
|
|
Term
How is diabetes assessed during pregnancy? |
|
Definition
- glucose load test (50g) → glucose > 140 after 1 hour → glucose tolerance test (100g)
- screening occurs at 24-28 weeks
|
|
|
Term
What can OCPs ↓ the risk of? |
|
Definition
- ovarian carcinoma
- endometrial carcinoma
- ectopic pregnancy
MTB p. 484 |
|
|
Term
Which medications are indicated for acute angle-closure glaucoma? |
|
Definition
- IV acetazolamide (↓ production of aqeous humor)
- IV mannitol
- pilocarpine (cholinergic agent) → constrict pupil
MTB p. 498 |
|
|
Term
How is chronic glaucoma managed? |
|
Definition
- prostaglandin analogues: latanoprost, travoprost, bimatoprost (↑ aqueous outflow).
- topical β-blockers: ↓ aqueous humor production by ciliary body.
- topical carbonic anhydrase inhibitor: ↓ aqueous humor production (HCO3- formation → Na+ production → osmotic draw).
- α2 agonist: apraclonidine (↓ aqueous humor production & (↑ aqueous outflow).
MTB p. 498 |
|
|
Term
How is herpes keratitis tx? |
|
Definition
- oral acyclovir, famiciclovir, or valacyclovir
- no steroids
- uveitis → topical steroids
MTB p. 499 |
|
|
Term
How is macular degeneration managed? |
|
Definition
- there are 2 types: atrophic (dry) and neovascular (wet).
- neovascular is more rapid and severe
- tx: VEGF inhibitors (ranibizumab, bevacizumab, aflibercept).
- no effective thx for atrophic
MTB p. 501 |
|
|
Term
|
Definition
- Cognitive: agitation, confusion, hallucinations, hypomania.
- Autonomic effects: sweating, hyperthermia, tachycardia, nausea, diarrhea, shivering.
- Somatic effects: tremors, myoclonus.
MTB p. 513 |
|
|
Term
What is the difference b/w brief psychosis, schizophreniform, and schizophrenia? |
|
Definition
- duration
- brief psychosis: > 1 day, < 1 mo
- schizophreniform: > 1 mo, < 6 mos
- schizophrenia: > 6 mos
- always rule out cocaine/amphetamine use with U-tox.
MTB p. 513 |
|
|
Term
What are the diagnostic criteria for somatization disorder? |
|
Definition
- 4 pain
- 2 GI
- 1 sexual
- 1 pseudoneurological
MTB p. 524 |
|
|
Term
What is the time frame for gastric lavage 2° to ingestion of toxic substance? |
|
Definition
- attempt up until 2 hours
- pills can enter duodenum within 30-60 minutes
- rarely done
- dangerous in altered mental status (aspiration) and caustic ingestion.
- do not use ipecac in the ED/hospital!!! recommend usage at home.
- Never perform gastric empyting (lavage, whole bowel irrigation, ipecac) with caustics, AMS, and acetaminophen overdose.
- Charcoal is superior to all of the above.
MTB p. 533 |
|
|
Term
|
Definition
- tinnitus & hyperventilation
- overall alkalosis
- respiratory alkalosis & metabolic acidosis
- ASA inhibits oxidative phosphorylation → anaerobic glucose metabolism → lactic acidosis
- ↑ anion gap
- tx: alkalinize urine → ↑ excretion
- abg: pH 7.46, pCO2 22, HCO3- 16
MTB p. 536 |
|
|
Term
How is carbon monoxide poisoning tx? |
|
Definition
- 100% O2
- if severe disease is present → hyperbaric O2
- severe disease: CNS symptoms, cardiac symptoms, or metabolic acidosis.
- CO presents with dyspnea, lightheadedness, confusion, seizures, and ultimately death via MI; acts functionally like anemia.
- blood is bright red; normal pO2 b/c O2 does not detach from Hb.
- same SSx with methemoglobinemia, but blood is brown; however, normal pO2 (cyanosis + normal pO2 = methemoglobinemia). tx: methylene blue.
MTB p. 539 |
|
|
Term
A pt is brought to the ED one hour after taking a bottle of pills. AVSS, confused, disoriented, lethargic. What is the best course of action? |
|
Definition
- naloxone and dextrose
- opiate ingestion and DM are extremely common
- opioid overdose is fatal; give naloxone immediately.
- do not give flumazenil; benzo overdose by itself is not fatal and withdrawal → seizures.
MTB p. 535 |
|
|
Term
Acetaminophen Overdose Management |
|
Definition
- toxicity: ingestion > 8-10g, fatal > 12-15g
- if toxic dose ingested → N-acetylcysteine
- overdose > 24 hrs → no thx
- amount of ingestion unclear → obtain drug levels
- obtain drug levels at 4 hours.
- charcoal can be administered immediately; however, N-acetylcysteine should be withheld until drug levels are obtained.
- Effective as long as N-acetylcysteine is administered within 8 hours of ingestion.
- charcoal can be administered with N-acetylcysteine
MTB p. 536, UW3136 |
|
|
Term
How is osmolar gap calculated? |
|
Definition
- serum osmolality = 2xNa+ + BUN/2.8 + glucose/18
MTB p. 542 |
|
|
Term
What are the toxic metabolites of methanol and ethylene glycol? |
|
Definition
- formic acid/formaldehyde
- oxalic acid
- inhibit alcohol dehydrogenase w/ fomepizole
|
|
|
Term
What should you not treat WPW with? |
|
Definition
- diltiazem or digoxin
- SVT will get worse with these medications b/c they block the normal AV node and force conduction into the abnormal pathway.
- tx current WPW with procainamide or amiodarone
MTB p. 556 |
|
|
Term
Which penicillins are effective against staph? |
|
Definition
- none
- all staph species produce penicillinase
- use penicillinase resistant abx - oxacillin, cloxacillin, dicloxacillin, and nafcillin.
MTB p. 4 |
|
|
Term
What are the adverse effects of cefoxitin and cefotetan? ceftriaxone? |
|
Definition
- cefoxitin and cefotetan: deplete prothrombin and ↑ risk of bleeding.
- ceftriaxone: inadequate biliary metabolism.
MTB p. 6 |
|
|
Term
|
Definition
- vancomycin
- linezolid
- daptomycin
- tigecycline
- ceftaroline
- minor skin infxn of skin: TMP/SMX, Clindamycin, Doxycycline, Linezolid.
MTB p. 7 |
|
|
Term
|
Definition
- exclusively for gram (-) bacilli including Pseudomas
- only drug in the class of monobactams
- aminoglycosides also excellent for gram (-); no anaerobes (requires O2 to work).
MTB p. 6 |
|
|
Term
How is suspected bacterial meningitis tx? |
|
Definition
- ceftriaxone + vancomycin + steroids
- add ampicillin if immunocompromised for Listeria
- steroids are only proven to ↓ mortality in S. pneumoniae.
- Listeria is resistant to all cephalosporins (tx if elderly, neonates, steroid use, AIDS/HIV, imunocompromised, etOH, pregnant).
MTB p. 11 |
|
|
Term
How is acyclovir resistant herpes encephalitis? |
|
Definition
- foscarnet
- acyclovir is IV
- famciclovir and valacyclovir are oral meds; ineffective for encephalitis.
MTB p. 13 |
|
|
Term
How is chronic hepatitis B tx? Hep C? |
|
Definition
- chronic hepatitis B: persistence of surface Ag > 6 mos.
- tx with one of the following: entecavir, adefovir, lamivudine, telbivudine, interferon, or tenofovir.
- Interferon AE: arthralgia/myalgia, leukopenia/thrombocytopenia, depression, flu-like sx.
- hepatitis C: interferon & ribavirin + telaprevir/boceprevir (for both acute and chronic).
- no acute tx for hepatitis B
MTB p. 21 |
|
|
Term
How is 1° and 2° syphilis tx? 3°? |
|
Definition
- 1° and 2°: single IM injection of penicillin; allx → oral doxycycline; pregnant → desensitize to penicillin.
- 3°: IV penicillin; allx → desensitize to penicillin.
MTB p. 25 |
|
|
Term
|
Definition
- ampicillin & gentamicin until culture results are known.
- ceftriaxone, ertapenem
- ciprofloxacin for outpt
MTB p. 28 |
|
|
Term
What should you think of when you see fever + murmur? |
|
Definition
- endocarditis
- empiric thx: vancomycin and gentamycin
MTB p. 30 |
|
|
Term
What fatal condition can result in an infant with menigococcemia? |
|
Definition
- Waterhouse-Friedrichsen syndrome
- sudden vasomotor collapse and skin rash due to adrenal hemorrhage
UW 3442 |
|
|
Term
What is the most common cause of death within the 72 hour period post-MI? |
|
Definition
- ventricular tachycardia
- 2° to ischemia
- tx ischemia → angioplasty
MTB p. 559 |
|
|
Term
How is chronic atrial fibrillation managed? |
|
Definition
- goal #1: ↓ HR < 100 with β blocker, CCB (verapamil/diltiazem), digoxin.
- goal #2: anticoagulation w/ warfarin, dabigatran (direct thrombin inhibitor), or rivaroxaban (factor Xa inhibitor).
|
|
|
Term
|
Definition
- #1: vagal maneuvers
- #2: adenosine
- #3: β blocker, CCB (verapamil/diltiazem), digoxin
- note: SVT alternating w/ VT = WPW; diltiazem/digoxin can precipitate WPW; tx WPW with procainamide or amiodarone.
|
|
|
Term
What is ventricular remodeling and how is it minimized? |
|
Definition
- ventricular remodeling → dilatation of left ventrical w/ thinning of ventricular walls → CHF
- occurs in the weeks to months following an MI.
- ACE inhibitors have been shown to limit ventricular remodeling; should be initiated within 24 hrs of MI.
UW 2732 |
|
|
Term
Which cancers secrete ACTH? |
|
Definition
- small cell lung cancer
- pancreatic cancer
- neuroendocrine
- bronchial carcinoids
UW2173 |
|
|
Term
|
Definition
- can occur with ectopic ACTH production
- ↑ aldosterone → ↑ principal cell basolateral Na/K ATPase w/ subsequent loss of K+ via apical channels; however, when K+ is ↓, protons are used by the ATPase instead → loss of H+ and alkalosis.
[image]
UW 2173 |
|
|
Term
|
Definition
- ovarian teratoma which produces thyroid hormones → thyrotoxicosis
- extremely rare
- if you see pt w/ thyrotoxicosis w/ ↓ radioactive iodine uptake it is more likely that is a thyroiditis; also subacute granulomatous thyroiditis, levothyroxine overdose, iodine-induced thyrotoxicosis.
UW 2191 |
|
|
Term
What are some AEs of thiazide diuretics? |
|
Definition
- hyperglycemia
- ↑ LDL
- ↑ plasma TG
- gout 2° uric acid retention
- hypercalcemia, hyponatremia, hypokalemia
- Furosemide: hypokalemia and hypomagnesemia → ventricular tachycardia; also can potentiate effects of digoxin → VT.
UW 4171, 2164 |
|
|
Term
What are the Hb electrophoresis patterns for sickle cell trait & disease? |
|
Definition
- trait: HbA 50-60%, HbS 35-45%, HbF < 2%
- disease: HbA 0%, HbS 85-95%, HbF 5-15%
- Ssx sickle cell trait: microscopic or gross hematuria (sickling in the renal medulla), isosthenuria (impairment in concentrating ability) which can present as nocturia & polyuria.
UW3787 |
|
|
Term
When should chorioamnionitis be suspected? |
|
Definition
- mothers presenting with prolonged or preterm premature rupture of the membranes (< 37 weeks)
- fever
- AND one of the following: tachycardia (> 100 bpm), fetal tachycardia (> 160 bpm), maternal leukocytosis (> 15,000), uterine tenderness, or foul-smelling amniotic fluid.
- abx: ampicillin & gentamicin
UW4134 |
|
|
Term
|
Definition
- aka fatty liver with encephalopathy
- seen exclusively in children < 15, and is preceded by an URI w/ influenza or varicella.
- tx w/ salicylates ↑ the likelihood of developing Reye syndrome.
- SSx: N&V, excitability, delerium, combativeness, hypoglycemia, liver failure.
- ASA is contraindicated in children except in tx of Kawasaki disease.
UW2896 |
|
|
Term
What is the difference between CML with blast crisis and a leukemoid rxn? |
|
Definition
- indistinguishable on a peripheral blood film.
- leukocyte alkaline phosphatase score plays a role in distinguishing btw the two.
- ↑ LAP → leukemoid rxn
- ↓ LAP → CML with blast crisis
UW2886 |
|
|
Term
What can ENV cause in an HIV patient? |
|
Definition
- CNS lymphoma
- MRI → weakly ring-enhancing mass that is usually solitary and periventricular.
UW2276 |
|
|
Term
What is the alternative if an HIV patient with PCP is unable to tolerate TMP/SMX? |
|
Definition
- pentamidine
- remember: prednisolone is used with TMP/SMX when a pts PaO2 < 70.
UW2273 |
|
|
Term
Which medications can cause benign/idiopathic intracranial HTN? |
|
Definition
- i.e. pseudotumor cerebri
- OCPs, corticosteroids, vitamin A
- acute/subacute/chronic HA associated with blurry vision or visual loss, papilledema, pulsatilse tinnitus, abducens nerve palsy, and N&V.
UW 3162 |
|
|
Term
How can you differentiate septic arthritis from crystal-induced arthritis from synovial aspirates? |
|
Definition
- WBC 10k-50k → crystal-induced arthritis
- 50k-150k → septic arthritis
- Staphylococcus aureus is the most common cause of prosthetic joint septic arthritis; via hematogenous spread.
UW4589 |
|
|
Term
What is the ddx for T-wave inversions? |
|
Definition
- MI, myocarditis, old pericarditis, myocardial contusion, and digoxin toxicity.
UW2439 |
|
|
Term
|
Definition
- propranalol
- akathisia is a common side effect of antiΨ
UW4895 |
|
|
Term
|
Definition
- a functional defect in bowel motility in the absence of a physical obstruction.
- Ssx: N&V, abdominal distension, failure to pass flatus or stool, hypoactive bowel sounds (mechanical obstruction actually → hyperactive "tinkling" bowel sounds).
- abdominal surgery is the most common cause.
UW4609 |
|
|
Term
What is the first line of medical thx for HOCM? |
|
Definition
- β-blocker or cardiac acting CCB (verapamil/diltiazem)
- HOCM has an autosomal dominant inheritance pattern.
UW2686 |
|
|
Term
How is amenorrhea from OCP usage managed? |
|
Definition
- βhCG
- if pt is not pregnant amenorrhea 2° to OCP usage → ↑ estrogen dose often solves problem.
UW2389 |
|
|
Term
Pruritis, xanthelasmas, scleral icterus, dark urine |
|
Definition
- primary biliary cirrhosis
- antimitochindrial Ab
- ursodeoxycholic acid is the drug of choice for PBC
- methotrexate and colchicine have also been shown to be of moderate benefit.
- steroids are ineffective
UW2950 |
|
|
Term
What grade of murmur is considered innocent? |
|
Definition
- grade 2/6 or less
- also diastolic murmurs are considered innocent
MKSAP p. 35 |
|
|
Term
Describe the mechanism of heparin induced thrombocytopenia. |
|
Definition
- heparin → release of platelet factor 4 → formation of heparin-PF4 complexes → IgG against complexes → activation of platelets, endothelial cell activation, and abnormal generation of intravascular thrombin → vascular thrombosis in 50% of pts affected by HIT.
UW4616 |
|
|
Term
What are the ssx and vitamin D toxicity? |
|
Definition
- hypercalcemia
- constipation
- abdominal pain
- weight loss
- polyuria/polydypsia
UW3083 |
|
|
Term
What are the ssx of adrenal insufficiency? |
|
Definition
- weakness
- fatigue
- weight loss
- anorexia
- depression
- ↑ pigmentation
- hypotension
- hyponatremia, hyperkalemia, anemia, and eosinophilia may be present.
UW2174 |
|
|
Term
What is the difference between multiple myeloma and MGUS (monoclonal gammopathy of undetermined significance)? |
|
Definition
- MGUS: < 3 g/dl M protein on serum protein electrophoresis; < 10% plasma cells in BM.
- MM: ≥ 3 g/dl M protein; ≥ 10% plasma cells BM; anemia, hypercalcemia, lytic bone lesions, renal insufficiency.
UW2249 |
|
|
Term
How is polymyalgia rheumatica dx? |
|
Definition
- age > 50
- pain and stiffness in neck, shoulders, and pelvic girdle
- ↑ ESR
- morning stiffness lasting over 1 hour
- no pain with active ROM
- no signs of joint inflammation
- tx: low dose prednisone
UW3317 |
|
|
Term
What should be considered w/ unexplained elevation of serum creatinine kinase and myopathy? |
|
Definition
- hypothyroidism
- test with TSH
- hyperthyroidism also → myopathy
- acute thyrotoxic myopathy (more severe distal or proximal muscle weakness)
- chronic thyrotoxic myopathy (proximal muscle weakness weeks to months after onset of hyperthyroidism).
UW3878, 4382 |
|
|
Term
What is the greatest risk factor for variant angina? |
|
Definition
- aka Prinzmetal angina
- greatest risk factor is smoking
- typically occurs in young females (40s)
- episodes typically occur at night
- transient ST segment elevation
- CCB (diltiazem) or nitrates
UW2723 |
|
|
Term
What must be considered when pt presents w/ renal colic sx, but kidney, ureter, bladder x-ray (KUB) is negative? |
|
Definition
- radiolucent stone disease (uric acid)
- calcium stones < 1-3 mm
- non-stone causes (obstruction by clot or tumor)
- uric acid stones seen w/ low urine pH
- tx: hydration, alkalinization of urine, ↓ purine diet, possible allopurinol use.
- alkalinize urine w/ potassium bicarbonate or potassium citrate.
|
|
|
Term
What is the definition of orthostatic hypotension? |
|
Definition
- postural ↓ in BP by 20 systolic or 10 diastolic
UW4728 |
|
|
Term
What are the common causes of metabolic alkalosis? |
|
Definition
- vomiting (volume depletion)
- diuretics (volume depletion)
- excess mineralocorticoids (volume depletion)
- metabolic alkalosis respiratory compensation formula
- PaCO2 = (0.9 x HCO3-) + 16 ± 2
UW2806 |
|
|
Term
What is the problem with premature adrenarche and thelarche? Pubarche? |
|
Definition
- Premature adrenarche (isolated appearance of axillary hair before the age of 6) is from secretion of androgen from the adrenal glands; no clinical significance.
- Premature thelarche (breast development) from secretion of estrogen and progesterone from ovaries.
- Premature pubarche (pubic hair before the age of 8) is alarming and associated with CNS disorder in 50% of cases.
UW3867 |
|
|
Term
What is the hepatojugular reflex? |
|
Definition
- useful for differentiating heart disease from liver disease as a cause of lower extremity edema.
- (+) in individuals with heart disease
- (-) liver disease related edema
UW4133 |
|
|
Term
What is febrile neutropenia? |
|
Definition
- neutropenia = absolute neutrophil count < 1500/μl
- it is a medical emergency
- empiric thx with broad-spectrum abx that covers Pseudomonas.
- monothx: ceftazidine, cefepime, imipenem, or meropenem.
UW2992 |
|
|
Term
Describe the pathophysiology of spinal stenosis. |
|
Definition
- it is a degenerative process of the vertebrae
- #1 osteophyte formation on the joint factes, #2 hypertrophy of the ligamentum flavum.
- pain radiates to the thigh and buttocks; walking and lumbar extension aggravates the pain; sitting and flexion relieves pain
- this is in contrast to disc herniation → pain worsened with flexion and sitting.
UW4369 |
|
|
Term
What are common causes of thrombocytopenia? Separate by decreased platelet production and increased platelet destruction. |
|
Definition
- viral infxn (EBV, Hep C, HIV)
- Chemothx
- myelodysplasia
- etOH
- congenital (fanconi syndrome)
- vitamin B12 or folate deficiency
SLE
- medications (heparin)
- ITP, DIC, TTP/HUS
- antiphospholipid syndrome
- OTHER: transfusion (dilutional) and splenic sequestration.
UW4860 |
|
|
Term
|
Definition
- Most common congenital cause of aplastic anemia.
- autosomal recessive or X-linked disorder involving DNA repair genes → chromosomal breaks.
- SSx:
- Bone Marrow: aplastic anemia and progressive bone marrow failure.
- Appearance: short stature, microcephaly, abnormal thumbs, and hypogonadism.
- Skin: Hypopigmented/hyperpigmented areas, cafe au lait spots, large freckles.
- Eyes/Ears: strabismus, low-set ears, middle ear abnormalities (e.g. hemorrhage, incomplete development, chronic infections, deafness); can present with pounding in ears from possible conduction defects or chronic hemorrhage.
- tx: hematopoietic stem cell replacement.
UW4438 |
|
|
Term
At what gestational age is betamethasone administered? |
|
Definition
- between 24 and 34 weeks
- Lecithin/Sphingomyelin ratio < 2
UW3274 |
|
|
Term
What is angiodysplasia commonly associated with? |
|
Definition
- aortic stenosis or end-stage renal disease
- it is a common cause of recurrent, painless GI bleeding in patients age > 60 years.
UW4085 |
|
|
Term
How does ethylene glycol poisoning cause hypocalcemia and ↑ BUN & creatinine? |
|
Definition
- ethylene glycol is converted to oxalic acid (binds Ca2+ and deposits in kidneys) and glycolic acid (nephrotoxic, renal tubule injury).
- look for ethanol-like intoxication, flank pain, hematuria, anion gap metabolic acidosis.
- tx: fomepizole or etOH
UW4511 |
|
|
Term
Hydroxychloroquine is prescribed to manage SLE. What must be monitored? |
|
Definition
|
|
Term
What are some unusual causes of 2° HTN? |
|
Definition
- Renal parenchymal disease (↑ creatinine, abnormal UA w/ proteinuria or RBC casts); this is in contrast to renovascular disease.
- Cushing disease
- hypothyroidism
- primary hyperparathyroidism
UW4722 |
|
|
Term
Adverse effects of erythropoietin thx |
|
Definition
- worsening HTN
- HA
- flu-like symptoms
- red cell aplasia
UW3978 |
|
|
Term
What is an important complication of nephrotic syndrome? |
|
Definition
- renal vein thrombosis
- nephrotic syndrome → loss of antithrombin III
- SSx: suden onset abdominal pain, fever, and hematuria.
- most common cause of RVT is membranous glomerulonephritis.
UW2243 |
|
|
Term
What is the water deprivation test good for differentiating? |
|
Definition
- diabetes insipidus vs. psychogenic polydipsia
- both present with polyuria & polydispsia → ↓ urine osmolarity.
- then, if pt fails to concentrate urine, → AVP/desmopressin test for central vs. nephrogenic DI.
UW3729 |
|
|
Term
How is cocaine intoxication managed? |
|
Definition
- benzodiazepine
- also: ASA, nitroglycerin, and CCBs
- No β-blockers; contraindicated!!! Can cause unopposed α adrenergic stimulation and worsen coronary vasoconstriction.
UW4042 |
|
|
Term
What are the adverse effects of methotrexate? |
|
Definition
- stomatitis
- nausea, abdominal pain
- anemia (folate deficiency → macrocytic anemia)
- hepatotoxicity
- interstitial lung disease
- myelosuppression
- fever
UW4573 |
|
|
Term
|
Definition
- #1 - Na+ and H2O restriction
- #2 - Spironolactone
- #3 - Loop Diuretic (≤ 1 L/day)
- #4 abdominal paracentesis (2-4 L/day)
- over diuresis/fluid removal → hepatorenal syndrome; monitor renal fxn closely!
UW2218 |
|
|
Term
What can cause dimorphic RBC populations? |
|
Definition
- pyridoxine deficiency
- causes microcytic anemia → sideroblastic anemia 2° to ↓ protoporphyrin synthesis (glycine & B6 required by ALA synthase).
UW4037 |
|
|
Term
Tick bite → 2 weeks later presents with fever, drenching, sweats, malaise, and jaundice with dark-colored urine. What is the dx? |
|
Definition
- babesiosis (No rash)
- tx: quinine-clindamycin or atovaquone-azithromycin
- Babesia enters RBCs → lysis
- Ehrlichiosis (No rash): fever, malaise, HA, N&V, leukopenia and thrombocytopenia.
UW3104 |
|
|
Term
Cephalohematoma vs Caput succedaneum |
|
Definition
- cephalohematmoa: subperiosteal hematoma; does not cross suture lines and presents several hrs after delivery. Can cause neonatal jaundice; resorbs after 2 wks - 3 mos.
- caput succedaneum (edema): diffuse soft tissue swelling; sometimes ecchymotic.
UW2472 |
|
|
Term
What is on the differential for pulsus paradoxus? |
|
Definition
- fall in systolic pressure of > 10 mmHg during inspiration.
- cardiac tamponade, asthma, COPD, and tension pneumothorax.
UW4771 |
|
|
Term
Which pt population is prone to hyperoxaluria? |
|
Definition
- intestinal disorders that predispose the pt to fat malabsorption.
- normally, in the GI, Ca2+ binds oxalate and prevents it's absoprtion.
- however, with ↑ fat, Ca2+ is bound to it, leaving oxalate free for absorption.
UW3435 |
|
|
Term
How is febrile neutropenia managed? |
|
Definition
- single temp > 38.3° C or sustained temp > 38° C for > 1 hour in a neutropenic pt.
- in a neutropenic pt fever may be the only sign of infectino.
- mild (< 1500 cells/μl), moderate (<1000), severe (<500).
- must hospitalize and administer abx if moderate or severe.
UW2616 |
|
|
Term
How is primary hyperparathyroidism differentiated form familia hypocalciuric hypercalcemia? |
|
Definition
- primary hyperPTH: 24 hr urine calcium > 200 mg or urine calcium/creatinine clearance ratio > 0.02.
- familial hypocalciuric hypercalcemia: < 100 mg or urine calcium/creatinine clearance ratio <0.01
- both have ↑ PTH
UW2176, 2165 |
|
|
Term
How does hypothyroidism → hyperprolactinemia? |
|
Definition
- TRH stimulate prolactin production
- serotonin also stimulates prolactin production
- prolactin production is inhibited by dopamine
UW4221 |
|
|
Term
Describe the tx of hyponatremia |
|
Definition
- mild (forgetfulness, unstable gate) - fluid restriction or oral salt tablets.
- moderate (confusion, lethargy) - hypertonic saline to ↑ sodium > 120 mEq/L.
- severe (seizures, inability to communicate, or coma) - hypertonic saline until symptom resolution.
UW2181 |
|
|
Term
Which medication is great at stimulating appetite in pts with cancer? |
|
Definition
- progesterone analogs (megestrol acetate and medroxyprogesterone acetate).
UW2646 |
|
|
Term
Langerhans cell histiocytosis |
|
Definition
- aka Langerhans cell granulomatosis, histiocytosis X
- proliferative disorder of dendritic cells from the monocyte lineage.
- cells are functionally immature and do not stimulate T lymphocytes via antigen presentation.
- Birbeck granules (tennis rackets) are characteristic.
- can cause solitary lytic bone lesions in children and young adults; benign, can spontaneously resolve, tx conservatively.
UW4642 |
|
|
Term
Describe the presentations of the different fungal infections. |
|
Definition
- Histoplasmosis: cough, fever, malaise. CXR → hilar adenopathy; chronic histoplasmosis and disseminated histoplasmosis is more common in HIV pts.
- Blastomycosis: infection in immunocompromised host is uncommon.
- Coccidiomycosis: Southwesern US, Cental & South America. Fever, fatigue, dry cough, weight loss, pleuritic chest pain. Cutaneous findings such as erythema multiforme/nodosum, as well as arthralgias.
- Aspergillosis: CXR → cavitary lesion; CT → pulmonary nodule with halo sign or lesion with air crescent. Occurs in immunocompromised pts (fever, cough =, dyspnea).
UW2997 |
|
|
Term
Which medications are used for absence seizures? |
|
Definition
- ethosuximide
- valproic acid
- lamotrigine
UW2279 |
|
|
Term
What can trigger porphyria cutanea tarda? |
|
Definition
- often associated w/ Hep C, and can be triggered by etOH or estrogen.
- painless blister, facial hypertrichosis, and hyperpigmentation.
- uroporphyrinogen decarboxylase deficiency
- also Acute intermittent porphyria (porphobilinogen deaminase def; upstream from above). Painful abdomen, redwine colored urine (clear at first), polyneuropathy, psychological disturbances, precipitated by drugs.
UW4314 |
|
|
Term
What SSx should raise suspicion for hereditary hemochromatosis? |
|
Definition
- newly dx diabetes, arthropathy (eg, knee/shoulder pain), and hepatomegaly
- HHC pts are vulnerable to Listeria monocytogenes, Yersinia enterocolitica, Vibrio vulnificus.
UW2880, 3160 |
|
|
Term
How does transposition of the great vessels present? |
|
Definition
- cyanosis within the first 24 hours
- single loud S2; because of the transposition the aorta is now located in front of the pulmonary artery → loud singular S2 (drowns out soft pulmonary valve S2).
UW4260 |
|
|
Term
A patient experiences wheezing after receiving naproxen. What is the dx? |
|
Definition
- aspirin-exacerbated respiratory disease (AERD)
- commonly associated with nasal polyps
- AERD associated with the following symptoms: asthma, chronic rhinosinusitis w/ nasal polyps, and bronchospasm or nasal congestion following the ingestion of ASA or NSAIDs.
UW2842 |
|
|
Term
What should you consider in a patient with HTN and a palpable abdominal mass? |
|
Definition
- polycystic kidney disease
- hematuria may also be present
- Adrenal masses (1° hyperaldosteronism, pheochromocytoma, Cushing) are almost never palpable.
UW4680 |
|
|
Term
How and when should you calculate a corrected Ca2+ level? |
|
Definition
- Corrected Ca2+ = measured total Ca2+ + 0.8 (4.0 g/dL - measured sreum albumin)
- basically for every 1 g/dL ↓ in albumin below 4 g/dL, there is decrease in total serum Ca2+ by 0.8.
- Start correcting when albumin dips below 4.
UW3100 |
|
|
Term
What is used to tx bipolar disorder? |
|
Definition
- mild to moderate - preferred: atypical antiψ
- aripiprizole, olanzapine, quetiapine, risperidone, ziprasidone; or as an alternative: lithium or valproic acid.
- severe episodes - mood stabilizer + antiΨ
- mood stabilizer: lithium, valproate, or lamotrigine.
UW2495 |
|
|
Term
What are the SSx of CO poisoning? |
|
Definition
- HA, nausea, dyspnea, malaise, AMS, dizziness
- severe: seizure, coma, syncope, heart failure, or arrhytmias.
- pulse oximeter is unreliable in this situation; cannot differentiate carboxyHb from oxyHb.
UW3223 |
|
|
Term
What are some serious side effects of OCPs? |
|
Definition
- VTE
- cardiovascular events/stroke
- ↑ TG
- cholestasis or cholecystitis
- DM
- HTN
Benefit/protective against
- ovarian cysts/cancer
- endometrial cancer
- benign breast disease
- dysmenorrhea
UW2392 |
|
|
Term
How does chronic pyelonephritis appear on IV pyelography? |
|
Definition
- focal parenchymal scarring
- blunting of calices
- hydronephrosis → dilation of the collecting system (different from above).
UW3694 |
|
|
Term
|
Definition
- develops as a result of excessive fluid production by inflamed synovium.
- as fluid volume expands, excess fluid accumulates in the popliteal bursa → fills popliteal fossa.
- caused by inflammatory conditions: RA, osteoarthritis, and cartilage tears.
UW4583 |
|
|
Term
What should you be concerned about with sudden onset hirsutism or virilization during pregnancy? |
|
Definition
- No ovarian mass: abdominal CT to rule out adrenal mass.
- Bilateral cyst: Theca Lutein cyst (rule out ↑ βhCG states).
- Bilateral solid: mostly pregnancy luteoma (benign condition, no tx necessary).
- Unilateral solid: laparotomy or laparoscopic bx to rule out malignancy.
UW2415 |
|
|
Term
How is antiphospholipid syndrome managed? |
|
Definition
- low dose ASA
- low molecular weight heparin
UW2256 |
|
|
Term
What can trigger torsades de pointes? |
|
Definition
- malnourished pts predisposed to hypomagnesemia (eg, alcoholics)
- TCA
- moxifloxacin and fluconazole
- familal long QT syndrome
- tx: initiate magnesium sulfate
UW2659 |
|
|
Term
|
Definition
- associated with burst fxr of vertebra
- total loss of motor fxn below level of lesion
- loss of pain and temperature on both sides below lesion
- intact proprioception
- central cord syndrome: burning pain and paralysis in upper extremities w/ relative sparing of lower extremities. Common in elderly w/ forced hyperextension type injury to neck.
- syringomyelia:damage to crossing fibers of pain & temp, upper extremity motor fibers (medial location of w/in corticospinal tract); preserved vibration and proprioception.
UW3300, 4698 |
|
|
Term
What is the most common cause of mitral regurgitation? |
|
Definition
- mitral valve prolapse
- by far the most common cause of MR in developed countries.
- rheumatic fever can cause MR, but mitral stenosis is more common.
UW2695 |
|
|
Term
How does hypokalemia occur w/ emesis? |
|
Definition
- emesis → volume contraction → ↑ aldosterone → K+ and H+ loss.
- metabolic acidosis can be divided into chloride-sensitive and chloride resistant.
- chloride-sensitive: urine Cl- < 20 mEq/day (aldo → Na+ retention and Cl-; think NaCl).
UW2819 |
|
|
Term
What features are common in CML? |
|
Definition
- low leukocyte alkaline phosphatase + leukocytosis
- note: elevated leuk Alk Phos is characteristic of Leukemoid Rxn.
UW2885 |
|
|
Term
What is the prophylactic erythromycin ointment effective against? |
|
Definition
- gonnococcal infection only
- only prenatal maternal testing and tx are effective against neonatal chlamydial infections; screen all pregnant women for chlamydia at first prenatal visit; repeat screening during 3rd trimester age < 25.
- chlamydial conjunctivitis presents at age 5-10 days
- chlamydial pneumonia presents at age 4-12 weeks
- both are tx with oral erythromycin for 14 days, despite risk of hypertrophic pyloric stenosis.
UW3660 |
|
|
Term
How is iron deficiency anemia differentiated from thalassemia based on CBC values alone? |
|
Definition
- RDW
- RDW > 20% → Fe deficiency anemia
- reticulocyte count is ↓ as well; it is an indicator of ↓ bone marrow erythropoiesis
- RDW normal in thalassemia
UW4876 |
|
|
Term
A patient experiences wheezing and upper airway congestion after taking an ASA. What is the cause? |
|
Definition
- pseudo-allergic rxn
- bronchoconstriction and polyp formation
- aspirin sensitivity syndrome; it is not a true allergy, and due to a shift/imbalance of prostaglandins/leukotrienes.
- COX1/2 inhibition → arachidonate shuttling into 5-lipoxygenase pathway → ↑ leukotrienes.
- tx: leukotriene inhibitors (montelukast or zafirlukast)
UW4065 |
|
|
Term
Which organs are commonly affected by graft versus host disease? |
|
Definition
- skin: maculopapular rash involving palms, soles, and face.
- intestine: blood (+) diarrhea
- liver: abnormal liver fxn and jaundice
UW4151 |
|
|
Term
What are some potential causes of xanthomas? |
|
Definition
- PBC: eyelids
- hypertriglyceridemia: yellow-red papules on arms and shoulders (eruptive xanthomas); consider checking lipid panel if pt has above SSx with acute pancreatitis (TG > 1000).
UW2965 |
|
|
Term
What should be considered when a post-bone marrow transplant pt presents with pneumonitis and colitis? |
|
Definition
|
|
Term
|
Definition
- often resolves spontaneously
- drainage if persists > 6 weeks, > 5 cm, or becomes infected.
- major complication: erodes into blood vessel → severe hemorrhage into pseudocyst.
- not a true cyst (no epithelial lining, just a thick fibrous capsule); inflammatory fluid contains amylase, lipase, and enterokinase.
- commonly associated with chronic pancreatitis, but can occur with acute pancreatitis, pancreatic trauma, and pancreatic neoplasm.
UW2897 |
|
|
Term
How is fibromuscular dysplasia tx? |
|
Definition
- angioplasty with stent placement
- can be unilateral
- FYI: b/l renal artery stenosis → ACEi is contraindicated.
UW3894 |
|
|
Term
What are the criteria for Kawasaki disease? |
|
Definition
- fever ≥ 5 days + 4 of the following:
- Δs in peripheral extremities (initial reddening or edema of palms & soles → desquamation of finger/toe tips).
- polymorphous, non-vesicular rash
- oropharyngeal Δs (erythema, fissuring, crusting of lips; strawberry tongue; diffuse mucosal injection of oropharynx).
- bilateral conjunctival injection (painless, nonexudative)
- acute nonpurulent cervical lymphadenopathy w/ lymph node diameter > 1.5 cm, usually unilateral.
emedicine |
|
|
Term
How does a pt with toxic megacolon present? |
|
Definition
- requires radiographic evidence of colonic distension + 3 of the following
- fever > 38° C
- HR > 120
- nø leukocytosis
- anemia AND 1 of the following
- volume depletion, AMS, electrolyet disturbance, or hypotension.
UW2205 |
|
|
Term
How is a solitary brain metastasis managed? |
|
Definition
- surgical resection of mass + whole brain irradiation
- multiple brain mets → palliative whole brain irradiation.
UW4072 |
|
|
Term
Management of low-grade gastric MALT lymphoma |
|
Definition
- PPI, clarithromycin, amoxicillin
- tx for H. pylori
- if abx thx fails → chemothx
UW2596 |
|
|
Term
What is nonallergic rhinitis? |
|
Definition
- aka vasomotor rhinitis
- predominant nasal congestion/stuffiness, postnasal drip, and no specific identifiable triggers.
- tx: intranasal antihistamine spray or intranasal glucocorticoids.
- allergic rhinitis: more prominent eye symptoms (watery, itchy), sneezing, and triggers.
UW4201 |
|
|
Term
|
Definition
- palpable purpura
- glomeulonephritis
- arthralgias
- hepatosplenomegaly
- peripheral neuropathy
- hypocomplementemia (in Henoch-Schonlein purpura complement is normal)
- most patients have Hepatitis C.
UW2232 |
|
|
Term
When shoud hyperaldosteronism be suspected? |
|
Definition
- young pt with HTN, muscle weakness, and numbness.
- hypokalemia → weakness & numbness
UW3929 |
|
|
Term
What causes prolonged bleeding time in chronic renal failure? |
|
Definition
- ↑ BUN → platelet dysfunction
- prolonged bleeding time; normal PT & PTT
- tx: DDAVP
- transfused platelets quickly become inactive
UW3951 |
|
|
Term
What are the indications for dialysis? |
|
Definition
- hyperkalemia refractory to tx
- volume overload or pulmonary edema not responding to diuretics
- refactory metabolic acidosis
- uremic pericarditis
- uremic encephalopathy or neuropathy
- coagulopathy due to renal failure
UW2224 |
|
|