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Zorluk: OrtaPharmacological and Parenteral Therapies

A nurse is caring for an adult client admitted with acute decompensated heart failure. The healthcare provider prescribes 8080 mg of furosemide to be administered intravenously (IV) push. The medication is available in a vial labeled 1010 mg/mL. The client currently has a continuous peripheral IV infusion of 5%5\% dextrose in water (D5W) running at 5050 mL/hr. Which of the following is the safest and most appropriate nursing action for administering this medication?

  1. A
    Draw up 88 mL of the medication and administer it rapidly over 3030 to 6060 seconds to ensure immediate diuresis.
  2. B
    Stop the D5W continuous infusion completely before administration, as furosemide and D5W are incompatible at the Y-site.
  3. Draw up 88 mL of the medication and administer it continuously over a minimum of 44 minutes.Cevap
  4. D
    Withhold the medication and assess the client's baseline urine output for one hour before determining if the full dose is necessary.

Cevap

The nurse should draw up 88 mL of the medication and administer it continuously over a minimum of 44 minutes.
Furosemide is a potent loop diuretic. When administered intravenously, the maximum safe rate of administration is generally 2020 mg per minute to prevent ototoxicity (which can manifest as tinnitus or permanent hearing loss). For a prescribed dose of 8080 mg, the nurse must divide the dose by the maximum rate (8080 mg / 2020 mg/min), determining that the push must take a minimum of 44 minutes. The volume calculation is straightforward: 8080 mg divided by the concentration of 1010 mg/mL equals 88 mL.

Adım Adım Çözüm

1
Calculate the volume of medication to withdraw from the vial.
The nurse needs 88 mL of furosemide.
Using the formula: (Desired Dose / Available Concentration) = Volume. 8080 mg / 1010 mg/mL = 88 mL.
2
Determine the maximum safe rate of intravenous administration.
The maximum safe administration rate for IV furosemide is 2020 mg per minute.
Administering loop diuretics too rapidly significantly increases the risk of ototoxicity (tinnitus and hearing loss).
3
Calculate the minimum time required to push the medication.
The medication must be administered over at least 44 minutes.
Dividing the total dose by the maximum rate per minute: 8080 mg / 2020 mg/min = 44 minutes.

Anahtar Kavram

Safe administration of intravenous push loop diuretics
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