A nurse is preparing to administer tobramycin 4 mg/kg/day IM divided in three equal doses to a client who weighs 60 kg. If the available tobramycin is 40 mg/mL, how many mL should the nurse administer per dose?
The Correct Answer is ["2 "]
Step 1: Calculate the total daily dose of tobramycin. The doctor ordered 4 mg/kg/day, so 4 mg/kg/day × 60 kg = 240 mg/day.
Step 2: Divide the total daily dose into three equal doses, as it is to be given in three divided doses. So, 240 mg/day ÷ 3 = 80 mg/dose.
Step 3: Calculate the volume of tobramycin to administer per dose. The available tobramycin is 40 mg/mL, so 80 mg ÷ 40 mg/mL = 2 mL. The nurse should administer 2 mL of tobramycin per dose.
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Naxlex Comprehensive Predictor Exams
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Correct Answer is ["14 "]
Explanation
The medication should be discarded 14 days after reconstitution. This is a standard guideline for most reconstituted medications to ensure potency and prevent bacterial growth.
Correct Answer is ["0.4 "]
Explanation
The nurse should administer 0.4 mL of morphine per dose. Here’s the calculation: Step 1: The total dosage required is 4 mg.
Step 2: Each mL of the injection contains 10 mg of morphine.
Step 3: So, the volume to be administered is 4 mg ÷ 10 mg/mL = 0.4 mL.
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