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Practice Question

A nurse is preparing to administer cephalexin 50 mg/kg/day in divided doses every 8 hours to a child who weighs 33 lb. The amount available is cephalexin oral suspension 250 mg/5 mL. How many mL should the nurse administer per dose? (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:

5

Rationale:

🔺 To calculate the correct mL per dose of cephalexin,

🔺 Convert weight from pounds to kilograms

✔ 33 lb ÷ 2.2 = 15 kg

🔺 Divide the total daily dose into 3 doses (every 8 hours)

✔ 750mg/day ÷ 3 = 250mg/dose

🔺 Use concentration to find mL per dose

✔ 250mg​ ÷ 250mg/5 mL

✍ = 5mL

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This question is from ATI PN Pediatrics Nursing 2023 (V) which contains 56 questions.

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ATI PN Pediatrics Nursing 2023 (V)

56 Questions

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Question Details
  • Category: LPN - Nursing Exam(s)
  • Subcategory: ATI Exams
  • Domain: PEDIATRICS PN
  • Answer Choices: 1
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