Furosemide (Lasix) Flashcards Preview

Paramedic Drugs Set 3 - BP / Analgesia > Furosemide (Lasix) > Flashcards

Flashcards in Furosemide (Lasix) Deck (7)
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1

Classification

Potent loop diuretic

2

Mechanism of Action

  • Inhibits the absorption of sodium, chloride ions & water in the loop of Heinle, as well as the convoluted tubule of the nephron causing decreased absorption of water and increased production of urine (dieresis).

3

Indications

  • Congestive Heart Failure
  • Pulmonary edema
  • Hypertensive emergency

4

Contraindications

  • Known sensitivity to sulfonamides or furosemide

5

Adverse Effects

  • Vertigo, dizziness, weakness, orthostatic hypotension, hypokalemia, thrombophlebitis
  • Pts with anuria, severe renal failure, untreated hepatic coma, increasing azotemia, and electrolyte depletion can develop life-threatening consequences. 

6

Administration

  • Congestive Heart Failure & Pulmonary Edema
    • Adult: 40 mg IV/IO slowly over 1-2 minutes. If satisfactory response is not achieved within 1 hour, additional dose of 80 mg can be given. (Max single dose is 160-200 mg)
    • Pediatrics: 1 mg/kg IV/IO/IM. If response not satisfactory, an additional dose of 2 mg/kg may be administered no sooner than 2 hours after the first dose. 
  • Hypertensive Emergency
    • ​Adult: 40-80 mg IV/IO
    • Pediatric: 1 mg/kg IV/IO/IM

7

Special Considerations

  • Onset of action for IV/IO occurs within 5 minutes, peaks within 30 minutes.