A patient is switched from furosemide (Lasix) to spironolactone (Aldactone). The patient asks the nurse why she has been switched to a new medicine. What is the nurse's best response?
A) "You will lose less potassium with spironolactone than with furosemide."
B) "You will have greater potassium losses with spironolactone than with furosemide."
C) "You will have greater water losses with spironolactone than with furosemide."
D) "You will have greater sodium losses with spironolactone than with furosemide."
A
Feedback:
Spironolactone promotes retention of sodium and water and excretion of potassium by stimulating the sodium–potassium exchange mechanism in the distal tubule. The patient will not have greater potassium losses, water losses, or sodium losses with spironolactone rather than furosemide.
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