Prototype carbonic anhydrase inhibitor:
- furosemide (Lasix)
- bumetanide (Bumex)
- acetazolamide (Diamox)
- triamterene (Dyrenium)
- mannitol
Acetazolamide (Diamox):
- alkaline diuresis
- acid diuresisa
Acetazolamide (Diamox):
- bicarbonate loss
- metabolic alkalosis
- increased cerebrospinal fluid production
- increased aqueous humor production
- all of the above
Clinical applications for carbonic anhydrase inhibitors:
- urinary alkalinization
- metabolic acidosis
- acute mountain sickness
- A & C
- A, B & C
Acetazolamide (Diamox) toxicity:
- renal stones
- renal potassium loss
- hyperchloremic metabolic acidosis
- paresthesias
- all of the above
Pharmacologic antagonism that mineralocorticoid receptors:
- furosemide (Lasix)
- triamterene (Dyrenium)
- spironolactone (Aldactone)
- mannitol
Example(s) of potassium-sparing diuretics:
- chlorothiazide (Diuril)
- torsemide (Demadex)
- triamterene (Dyrenium)
- bumetanide (Bumex)
- acetazolamide (Diamox)
Clinical uses: potassium-sparing diuretics --
- Conn's syndrome
- ectopic ACTH production
- secondary aldosteronism cause by congestive heart failure
- A & C
- A, B & C
Concerning toxicity of triamterene (Dyrenium):
- hypokalemia
- hyperkalemia
Hyperkalemia is less likely when potassium-sparing diuretics are used as the only diuretic drug or the presence of renal insufficiency.
- true
- false
Toxicities/adverse effects of potassium-sparing diuretics:
- hyperchloremic metabolic acidosis
- gynecomastia
- kidney stones
- B & C
- A, B & C
Least likelyto be used clinically today:
- torsemide (Demadex)
- bumetanide (Bumex)
- ethacrynic acid (Edecrin)
- torsemide (Demadex)
Primary site of action of bumetanide (Bumex):
- distal tubule
- collecting duct
- descending loop of Henle
- ascending loop of Henle
- proximal tubule
Most effective diuretic in treatment of acute congestive heart failure -- in terms of magnitude of induced diuresis following IV administration:
- mannitol
- triamterene (Dyrenium)
- bumetanide (Bumex)
- acetazolamide (Diamox)
Major clinical use(s) of loop diuretics:
- management of acute pulmonary edema
- management of acute hypercalcemia
- management of systemic edema
- A & C
- A, B & C
Clinical uses of loop diuretics:
- management of acute hypercalcemia
- management of anion overload
- acute renal failure
- B & C
- A, B & C
Toxicities/toxicity associated with loop diuretics:
- hyperkalemic metabolic acidosis
- ototoxicity
- hypouricemia
- hypermagnesemia
Primary site of action of hydrochlorothiazide (HCTZ, Esidrix, HydroDIURIL):
- thin descending loop of Henle
- thick ascending loop of Henle
- distal convoluted tubule
- proximal tubule
- collecting duct
Thiazide administration will tend to increase uric acid secretion:
- true
- false
Thiazides -- clinical use(s):
- hypertension
- congestive heart failure
- nephrogenic diabetes insipidus
- A & C
- A, B & C
Toxicities/toxicity associated with thiazide diuretics:
- hyperkalemic states
- hypouricemia
- hypolipidemia
- hyponatremia
Diuretic drug classes most commonly used in management of hypertension:
- loop diuretics
- potassium-sparing diuretics
- thiazides
- B & C
- A & C
Least likely to be used initially in the pharmacological treatment of mild hypertension:
- ACE inhibitor
- calcium channel blocker
- beta-blocker
- thiazide
- vasodilator
Clinical use(s) for osmotic diuretics:
- increase urine volume
- decreased intracranial pressure
- both
- neither
Primary treatment of Central (cranial) diabetes insipidus: antidiuretic peptides, e.g. desmopressin {DDAVP}:
- true
- false