A nurse is preparing to administer naloxone 10 mcg/kg IM to a client who weighs 165 lb. Available is naloxone 0.4 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.
Use a leading zero if it applies.
Do not use a trailing zero.). mL.
The Correct Answer is ["1.9 mL"]
Step 1 is to convert the client’s weight from pounds to kilograms (1 kg = 2.2 lb). The calculation is as follows: 165 lb ÷ 2.2 = 75 kg. Step 2 is to calculate the volume of naloxone to be administered. The calculation is as follows: (10 mcg/kg × 75 kg) ÷ (0.4 mg/mL × 1000 mcg/mg) = 1.875 mL.
So, the correct answer is 1.9 mL (rounded to the nearest tenth).
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.8 mL"]
Explanation
Step 1 is to convert the client’s weight from pounds to kilograms. So, 183 lb ÷ 2.2 = 83.18 kg (rounded to the nearest hundredth). Step 2 is to calculate the total amount of medication needed. So, 0.1 mg/kg × 83.18 kg = 8.32 mg (rounded to the nearest hundredth). Step 3 is to calculate the volume to administer. So, 8.32 mg ÷ 10 mg/mL = 0.832 mL. Rounding off to the nearest tenth, the nurse should administer 0.8 mL of furosemide.
Correct Answer is ["48 mL"]
Explanation
Step 1 is to convert the client’s weight from pounds to kilograms since the medication dosage is prescribed in mg/kg. We know that 1 kg is approximately 2.2 lb. So, 210 lb ÷ 2.2 = 95.45 kg (rounded to the nearest hundredth). Step 2 is to calculate the total amount of medication needed using the formula: dose (mg/kg) × weight (kg). So, 5 mg/kg × 95.45 kg = 477.27 mg (rounded to the nearest hundredth). Step 3 is to calculate the volume to administer using the formula: total medication needed (mg) ÷ concentration (mg/mL). So, 477.27 mg ÷ 10 mg/mL = 47.73 mL. Rounding off to the nearest whole number, the nurse should administer 48 mL of gentamicin.
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