How soon will diuresis be expected to occur after the nurse has administered 20 mg of furosemide (Lasix) intravenously (IV) to a patient with heart failure?
a. As soon as injected
b. Within 10 minutes
c. After 2 hours
d. After 4 hours
ANS: B
The onset of diuresis following IV furosemide administration is 5 to 10 minutes after administration. The diuretic effect peaks within 30 minutes and lasts approximately 2 hours.
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