Potassium-sparing diuretics

Topic: Pharmacology

Weak diuretics that increase sodium excretion in the distal nephron while retaining potassium: aldosterone antagonists (spironolactone, eplerenone) and epithelial sodium channel blockers (amiloride, triamterene). They are used in heart failure, ascites from cirrhosis, primary hyperaldosteronism and resistant hypertension. The main danger is hyperkalemia, more likely with ACE inhibitors, ARBs or kidney failure; spironolactone can cause gynecomastia. Monitor potassium and kidney function, and teach the client to avoid potassium supplements and potassium-based salt substitutes.

Also known as:
Aldosterone antagonists, Mineralocorticoid receptor antagonists, Spironolactone

What does Potassium-sparing diuretics mean?

Potassium-sparing diuretics is part of the Pharmacology topic in nursing. Students meet it in class, on clinical placements and while preparing for exams.

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