A nurse is preparing to administer amikacin 5 mg/kg via intermittent IV bolus to a client who weighs 219 lb. Available is amikacin 10 mg/mL. 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 ["50"]
Step 1 is to convert the client’s weight from pounds to kilograms, since the dosage is prescribed in mg/kg. Given that 1 kg = 2.2 lb, we calculate:
219 lb ÷ 2.2 = 99.5 kg
Rounding to the nearest whole number, the client’s weight is 100 kg.
Step 2 is to determine the total dosage of amikacin required. The prescribed dosage is 5 mg/kg, so we calculate:
5 mg/kg × 100 kg = 500 mg
Step 3 is to determine the volume to administer. The available concentration of amikacin is 10 mg/mL, so we divide:
500 mg ÷ 10 mg/mL = 50 mL
Thus, the correct amount to administer is 50 mL.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["83"]
Explanation
Step 1 is to calculate the total volume to be infused in mL/min. This is done by dividing the total volume (250 mL) by the time in minutes (30 min). So, 250 mL ÷ 30 min = 8.33 mL/min. Step 2 is to convert mL/min to gtt/min using the drop factor. So, (8.33 mL/min) × (10 gtt/mL) = 83.3 gtt/min. Round off to the nearest whole number, the correct answer is 83 gtt/min.
Correct Answer is ["50"]
Explanation
Step 1 is to convert the client’s weight from pounds to kilograms, since the dosage is prescribed in mg/kg. Given that 1 kg = 2.2 lb, we calculate:
219 lb ÷ 2.2 = 99.5 kg
Rounding to the nearest whole number, the client’s weight is 100 kg.
Step 2 is to determine the total dosage of amikacin required. The prescribed dosage is 5 mg/kg, so we calculate:
5 mg/kg × 100 kg = 500 mg
Step 3 is to determine the volume to administer. The available concentration of amikacin is 10 mg/mL, so we divide:
500 mg ÷ 10 mg/mL = 50 mL
Thus, the correct amount to administer is 50 mL.
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