A nurse is preparing to administer phenytoin 100 mg PO every 8 hours.
If the available phenytoin suspension is 125 mg/5 mL, how many mL should the nurse administer per dose?
The Correct Answer is ["4 "]
Step 1 is to calculate the volume of phenytoin to administer. Given that the available phenytoin suspension is 125 mg/5 mL and the nurse needs to administer 100 mg, the calculation is as follows: 100 mg ÷ (125 mg/5 mL) = 4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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 ["2 "]
Explanation
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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