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Renal-Vascular
Pharmacology
45
Pharmacology
Graduate
10/03/2011

Additional Pharmacology Flashcards

 


 

Cards

Term
What endocrine functions do the kidneys have?
Definition

Renin secretion

Erythropoietin secretion

vit D3 secretion

Term
A buildup of which organic waste product can lead to gout?
Definition
Uric Acid
Term
A deficiency in what hormone causes diabetes insipidus?
Definition
ADH-antidiuretic hormone
Term
What does aldosterone do and in what regions of the nephron?
Definition
Increases sodium reabsorption in the distal convoluted tubule and in the collecting ducts.
Term
Name 5 types of diuretics and an example of each
Definition

1. Thiazide /thiazide like-hydrochlorothiazide

2. Loop -Furosemide

3. Potassium Sparing-Spironolactone

4.Carbonic Anhydrase inhibitors-Acetazolamide

5. Osmotic Diuretics-Mannitol

 

Term
What is the action of osmotic diuretics and where in the body do they work to reduce edema?
Definition

They reduce water and Cl reabsorption

they reduce cerebral edema

Term
Name 3 side effects of osmotic diuretics
Definition

Headaches

Tremors

Convulsion

Term
Name 2 Osmotic Diuretics
Definition
Mannitol and Urea
Term
How do Carbonic Anhydrase Inhibitors Affect Diuresis
Definition

Carbonix Anhydrase converts bicarbonate and carbonic acid into CO2. Inhibitors of this enzymes stop this conversion.

Bicarbonates and Carbonic acid are less permeable, thus they do not get resorbed, increasing the volume excreted. 

 

Term
What part of the nephron do Carbonic Anhydrase Inhibitors work?
Definition
Proximal Tubule
Term
Name 3 conditions Carbonic Anhydrase Inhibitors are used to treat
Definition

Epilepsy

Glaucoma

Hig altitude sickness

Term
For what kind of population are Carbonic anhydrase Inhibitors contraindicated for?
Definition
Those with sulfonamide allergies
Term
Name 2 Carbonic Anhydrase Inhibitors
Definition

Acetazolamide

Methazolamid

Term
Name 3 conditions that present with edema
Definition

Congestive Heart Failure

Renal Failure

Cirrhosis

Term
Loop diuretics are very strong, what can high doses cause?
Definition

Severe Hypovolemia (decrease in blood plasma volume)

Death

Term
Which part of the nephron does loop diuretics work on?
Definition
The ascending loop of Henle
Term
What type of drugs work on the proximal convoluted tubule?
Definition
Acetazolamide which is a carbonic anhydrase inhibitor
Term
Which condition do Uricosuric Agents treat and how do they do this?
Definition
Uricouric agents are used to treat gout and they do so by completely inhibiting renal reabsorption of uric acid
Term
How does Allopurinol treat gout?
Definition
Allopurinol disrupts the synthesis of uric acid
Term
Acetazolamide and Methazolamide are what type of drug?
Definition
Carbonic Anhydrase Inhibitors (CAI)
Term
Probenecid, Sulfinpyrazone and Allopurinol are what types of drug?
Definition
Uricosuric agents-treat gout
Term
Hydrochlorothiazide and Polythiazide are what type of drugs?
Definition
Thiazide Diuretics....duh
Term
Chlorothalidone and Indapamide are what type of drugs?
Definition
Thiazide-like Diuretics
Term
Furosemide, Bumetanide and Ethacrynic acid are all:
Definition
Loop Diuretics
Term
Amiloride, Eplerenone and Spironolactone are all:
Definition
Potassium sparing diuretics
Term
Taking anticoagulants can increase the risk of ____________.
Definition
Hemorrhaging
Term
Name 2 types of conditions that are contraindicated for anticoagulants.
Definition

Hemophilia

Thrombocytopenia (low platelet count)

Term
What chemical do damaged blood vessels secrete and what is its activated form?
Definition
Prothrombin-->becomes Thrombin
Term
What chemical does thrombin activate and what is its activated form?
Definition
Activates fibrinogen, which becomes fibrin, which forms blood clots.
Term
Name 3 Anticoagulant Agents and their route of administration
Definition

1. Warfarin-ORAL

2. Pentoxifylline-Oral

3. Heparin-IV

Term
What is a healthy INR range? What can happen if a pt is below this range? Above?
Definition

INR stands for International Normalized Ratio and refers to blood coagulation ability. A good range is from 2-3. Being below this range refers to underanticoagulation and can result in blood clots-->stroke

Being above this range can result in blood that is too thin and thus an increased risk of bleeding.

Term
How does Heparin affect blood clots?
Definition
Heparin inhibits the conversion of prothrombin to thrombin and thus the covnersion of fibrinogen to fibrin-->thus preventing blood clots
Term
Name 3 SE of Heparin
Definition

Bleeding

Hypersenstivity

Thrombocytopenia

Term
How does Low Molecular Weight (LMW) Heparin compare to standard heparin?
Definition
LMW heparin is derived from standard heparin , it has a greater bioavailability, longer duration of action and fewer SE.  
Term
What drug is used to treat an overdoes of Heparin?
Definition
Protamine
Term
What is the mechanism of action of warfarin?
Definition
Warfarin resembles vit. K and thus it interferes with the synthesis of certain clotting factors that are dependent on vitamin K.
Term
Which drug is used for more long term anticoagulant treatment? 
Definition
Warfarin ( as opposed to Heparin)
Term
How does the action of anticoagulants compare to that of anti-platelets?
Definition
Anticoagulants prevent thrombosis in veins, antiplatelets prevent clot formation in arteries.
Term
How does Dipyridamole impair platelet function?
Definition
It does so by inhibiting adenosine deaminase and phosphodiesterase
Term
Name 4 Antiplatelet Agents
Definition

Aspirin

Clopidogrel

Ticlopidine

Dipyridamole

Term
How do Thrombolytic Agents work?
Definition
They facilitate the conversion of plasminogen to plasmin. Plasmin then hydrolyzes fibrin, dissolving blood clots.
Term
Name 3 Thrombolytic Agents
Definition

Alteplase recombinant

Streptokinase

Urokinase

Term
Warfarin, Pentoxifylline,  Heparin and Ardeparin are all:
Definition
Anticoagulants
Term
Aspirin, Clopidogrel, Ticlopidine and Dipyridamole are all:
Definition
Antiplatelet drugs
Term
Streptokinase and Urokinase are both:
Definition
Thrombolytic Agents
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