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Ordered: Insulin lispro 24 units subcut 4 times daily, with meals and at bedtime, for 90 days.

On hand: 1,000 unit vials of insulin lispro

Note: Partial vials are not dispensed.

What is the amount to dispense?

A.

7 vials

B.

3 vials

C.

8 vials

D.

9 vials

Answer and Explanation

The Correct Answer is D

Calculation:

  • Calculate the total daily dose in units.

Total daily dose = 24 units/dose × 4 doses/day

  = 96 units/day.

  • Calculate the total units needed for the 90-day supply.

Total units = 96 units/day × 90 days

  = 8640 units.

Total units per vial = 1000 units.

  • Calculate the number of vials needed.

Vials needed = Total units / Units per vial

          = 8640 units / 1000 units/vial

          = 8.64 vials.

  • Account for partial vials not being dispensed.

Vials to dispense = 9 vials.


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Related Questions

Correct Answer is B

Explanation

A. KVO: "Keep vein open" infusions are minimal-rate fluids used to maintain IV line patency, not to deliver active medications like Zinacef. This does not apply to scheduled antibiotic therapy.

B. therapeutic: Zinacef (cefuroxime) is an antibiotic used to treat infections. Since it is being administered on a scheduled basis (750 mg IV q8h), it is used therapeutically to manage a medical condition.

C. replacement: Replacement fluids are used to restore lost fluids and electrolytes due to vomiting, diarrhea, bleeding, or other losses. They are not used for medication administration.

D. maintenance: Maintenance fluids meet basic daily fluid and electrolyte requirements in patients unable to eat or drink. They do not involve scheduled doses of antibiotics or other medications.

Correct Answer is B

Explanation

To convert pounds (lb) to kilograms (kg), use the conversion factor of 2.2 lb/kg

  • Divide the weight in pounds by the conversion factor.

Weight in kg = 150 lb / 2.2 lb/kg

= 68.1818 kg.

  • Round the answer to the nearest whole number.

= 68 kg.

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