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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.)
Answer and Explanation

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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Related Questions

Correct Answer is ["48"]

Explanation

Step 1 is to convert the client’s weight from pounds to kilograms since the medication dosage is prescribed in mg/kg. Given that 1 kg is approximately 2.2 lb, the conversion is:

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) = Total medication needed (mg)

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) = Volume to administer (mL)

477.27 mg ÷ 10 mg/mL = 47.73 mL

Rounding off to the nearest whole number, the nurse should administer 48 mL of gentamicin.

Correct Answer is ["1.2"]

Explanation

Step 1 is to convert the client’s weight from pounds to kilograms since the dosage is ordered in mg/kg. There are approximately 2.2 lb/kg, so 165 lb ÷ 2.2 lb/kg = 75 kg. The doctor ordered phenobarbital at a dosage of 2 mg/kg/day divided into 2 equal doses, so we multiply the client’s wei

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:

165 lb ÷ 2.2 lb/kg = 75 kg

Step 2 is to determine the total daily dose of phenobarbital. The doctor ordered 2 mg/kg/day, divided into 2 equal doses. So, we first calculate the total daily dose:

75 kg × 2 mg/kg/day = 150 mg/day

Since the medication is to be given in 2 equal doses, we divide:

150 mg/day ÷ 2 = 75 mg/dose

Step 3 is to determine the volume to administer. The medication has a concentration of 65 mg/mL, so we divide the required dose by the concentration:

75 mg ÷ 65 mg/mL = 1.15 mL

Rounding to the nearest tenth, the correct amount to administer is 1.2 mL.

ght in kg by the dosage and divide by 2: (75 kg × 2 mg/kg/day) ÷ 2 = 75 mg/dose. The medication is available at a concentration of 65 mg/mL, so we divide the total mg needed per dose by the mg per mL: 75 mg ÷ 65 mg/mL = 1.15 mL.

So, the correct answer is 1.2 mL.

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