furosemide

Question 1

furosemide- Name

Answer 1

Lasix

Question 2

furosemide- Class

Answer 2

Loop Diuretic

Question 3

furosemide- MoA

Answer 3

Inhibits reabsorption of sodium and chloride in the renal tubules (Loop of Henle, proximal, and distal renal tubules) thereby increasing urinary output (20 minute onset)

Causes venous pooling (5 minute onset) Decreases workload of the heart

Question 4

furosemide- Indications

Answer 4

Pulmonary Edema

Hypertensive Emergencies/Crisis

Question 5

furosemide- Contra

Answer 5

Hypovolemia

Pregnancy

Renal/hepatic failure

Suspected electrolyte imbalances

Hypersensitivity to sulfonamides

Question 6

furosemide- S/E

Answer 6

Cardiovascular: hypotension, dehydration, ventricular fibrillation, circulatory collapse

Neurological: blurred vision, tinnitis, hearing loss, syncope, seizures

Gastrointestinal: nausea/vomiting

Question 7

furosemide- Routes

Answer 7

IV, IO

Question 8

furosemide- A. Dose

Answer 8

20-120 mg slow IVP/IO (20 mg/minute)

or 0.5 mg/kg

Question 9

furosemide- P. Dose

Answer 9

0.5-2 mg/kg slow IVP/IO (20 mg/minute)

usually start with 1mg/kg

Question 10

furosemide- Extras

Answer 10

Interactions: Increased risk of cardiac dysrhythmias if patient is taking Digitalis or Lithium

Onset in 5-10 minutes and can last 3 hours

Hearing loss and tinnitis are typically caused by a rapid IVP rather than a slow IVP

Assess lung sounds before and after administration, and frequently throughout patient contact

History of daily Furosemide use is important to ascertain as prehospital dosing is typically based on PO dose.