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Practice Question

A nurse is preparing to administer nafcillin 500 mg IM to a client. Available is nafcillin 1 g powder. The package insert instructs reconstituting with 3.4 mL of sterile water to yield nafcillin 250 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer Choices:

Correct Answer:

2

Rationale:

✍️ Formula:

✅Desired dose ÷ Final concentration

✍️Ordered: 500 mg 

✍️Final concentration after reconstitution: 250 mg/mL

✅ 500 mg ÷ 250 mg/mL

✅2 mL

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This question is from Dosage Calculation PN Adult Medical Surgical Proctored Assessment 3 which contains 35 questions.

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From Exam
Dosage Calculation PN Adult Medical Surgical Proctored Assessment 3

35 Questions

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Question Details
  • Category: LPN Nursing Exam(s)
  • Subcategory: LPN ATI Exams
  • Domain: Dosage Calculations
  • Answer Choices: 1
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