A nurse is preparing to administer foscarnet 60 mg/kg via intermittent IV bolus to a client who weighs 126 lb. Available is foscarnet 6,000 mg in 500 mL of 0.9% sodium chloride solution. 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.)
The Correct Answer is ["286"]
To solve this problem, the nurse needs to convert the client's weight from pounds to kilograms, and then use the formula:
mL = (mg/kg x kg) / (mg/mL)
The client's weight in kilograms is:
126 lb / 2.2 lb/kg = 57.27 kg
The concentration of foscarnet in mg/mL is:
6,000 mg / 500 mL = 12 mg/mL
Plugging these values into the formula, we get:
mL = (60 mg/kg x 57.27 kg) / (12 mg/mL)
mL = (3,436.2 mg) / (12 mg/mL)
mL = 286.35 mL
Therefore, the nurse should administer 286 mL of foscarnet.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["100"]
Explanation
To calculate the IV pump rate in mL/hr, you need to divide the volume of the solution in mL by the infusion time in hr. In this case, the formula is 100 mL / 1 hr = 100 mL/hr.
Therefore, the nurse should set the IV pump to deliver 100 mL/hr of metronidazole.
Correct Answer is B
Explanation
A. The medication is for IV administration: This cannot be assumed unless the label specifically states “for intravenous use.” Phenytoin comes in multiple formulations (oral suspension, tablets, IV), so route must be verified.
B. The total amount available per container is 4 mL: This is label-specific information. If the label indicates that each vial contains 4 mL, this is a factual and critical point to ensure accurate dosing.
C. The nurse should avoid shaking the medication: While some medications (e.g., suspensions) should not be shaken vigorously, phenytoin IV solution is not a suspension, and this instruction may not apply to all forms.
D. The medication should not be stored below 30°C (86°F): This is incorrect. Phenytoin should be stored at controlled room temperature, typically 20°C to 25°C (68°F to 77°F), and protected from excessive heat or cold.
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