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Practice Question

A nurse is caring for a client who has a pulmonary embolism and has a new prescription for enoxaparin 5mg/kg/dose subcutaneous every 12 hr. The client weighs 245 lbs. How many mg 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:

557

Rationale:

⚖️The client’s weight is 245 lb, which must be converted to kilograms by dividing by 2.2: 245 ÷ 2.2 = 111.36 kg.

🧮The prescribed dosage is 5 mg/kg, so the dose per administration is calculated as: 111.36 kg × 5 mg = 556.8 mg, which rounds to 557 mg.

💉This is a weight-based dose of enoxaparin, which is essential for anticoagulation and must be calculated precisely to ensure effectiveness and reduce bleeding risk.

📋Weight-based calculations are especially important in high-risk conditions such as pulmonary embolism, where underdosing may result in inadequate treatment and overdosing increases the risk of hemorrhage.

📌core message

For weight-based medications, always convert lb to kg and apply the mg/kg dose to determine the correct amount.

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This question is from ATI 410 Dosage Calculation which contains 35 questions.

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Question Details
  • Category: RN Nursing Exams
  • Subcategory: ATI Exams (RN)
  • Domain: DOSAGE CALCULATION (RN ati)
  • Answer Choices: 1
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