KROK 1 2011 – Question 143 · KROK (Medicine) · Pharmacology

A patient takes digoxin for cardiac insufficiency. What diuretic may increase digoxin toxicity due to the intensified excretion of K+ ions?

  1. A. Spironolactone
  2. B. Panangine
  3. C. Siliborum
  4. D. Hydrochlorothiazide
  5. E. Lisinopril
Hint

Think about how each diuretic handles potassium in the nephron, and how a low serum potassium level influences the sodium pump that digoxin inhibits.

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