A Child Diagnosed with Congestive Heart Failure Is Started on Digoxin

Multiple Choice

A child diagnosed with congestive heart failure is started on digoxin (Lanoxin) and spironolactone (Aldactone) . The mother questions why the child was placed on spironolactone (Aldactone) instead of furosemide (Lasix) , which her elderly grandmother uses. The nurse explains that spironolactone (Aldactone) is a diuretic that:

A) Produces rapid diuresis.
B) Blocks reabsorption of sodium and water in renal tubules.
C) Spares potassium.
D) Promotes vascular relaxation.