Furosemide

Question 1

Furosemide Class

Answer 1

loop diuretic (C)

Question 2

Furosemide Indications

Answer 2

CHF, cardiogenic pulmonary edema

Question 3

Furosemide Mechanism

Answer 3

inhibits the reabsorption and promotes the excretion of sodium, potassium, and chloride in the loop of Henle, causing a fluid shift that increases urinary output; also decreases peripheral vascular resistance, thereby decreasing workload on the heart

Question 4

Furosemide Side Effects

Answer 4

• hearing loss
• Tinnitus
• Hypokalemia
• Hyponatremia
• Hypomagnesemia
• Hyperglycemia

Question 5

Furosemide Contraindications

Answer 5

• hypersensitivity
• dehydration
• hypotension
• hypovolemia

Question 6

Furosemide Precautions

Answer 6

thoroughly assess lung sounds before and after administration; use caution in patients with renal dysfunction or who are pregnant

Question 7

Furosemide Interactions

Answer 7

increased risk of dysrhythmias if patient is taking digitalis or lithium

will immediately form a precipitate with amrinone (Inocor) and should be administered via a different IV line

furosemide also inhibits the reabsorption of potassium and patients taking furosemide at home generally take a potassium supplement to decrease the risk of hypokalemia

protect from light, as furosemide can be inactivated by direct sunlight

Question 8

Furosemide Routes

Answer 8

slow IVP (20 mg/min to prevent tinnitus), IO

Question 9

Furosemide Onset

Answer 9

5–20 minutes

Question 10

Furosemide Durration

Answer 10

4–6 hours

Question 11

Furosemide Adult Dose

Answer 11

0.5–1 mg/kg or 40–80 mg; if no response, then 2 mg/kg

Question 12

Furosemide Pedi Dose

Answer 12

1 mg/kg