A nurse is preparing to administer acetaminophen 300 mg PO every 4 hr PRN headache.
Available is acetaminophen liquid 160 mg/5 mL. How many mL should the nurse administer per dose? (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 ["9.4 mL"]
Step 1 is to calculate the dose to be administered which is 300 mg. Step 2 is to calculate the concentration of the available medication which is 160 mg/5 mL. Step 3 is to calculate the volume to be administered as (300 mg ÷ (160 mg/5mL)) = 9.375 mL.
So, the correct answer is, after analyzing all steps, the nurse should administer 9.4 mL per dose (rounded to the nearest tenth).
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Related Questions
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.
Correct Answer is ["68 ml"]
Explanation
Step 1 is to convert the client’s weight from pounds to kilograms since the dosage is prescribed in mg/kg. We know that 1 kg is approximately 2.2 lb. So, the client’s weight in kg is 99 lb ÷ 2.2 = 45 kg (rounded to the nearest whole number). Step 2 is to calculate the total dosage of acetaminophen required. The prescribed dosage is 15 mg/kg, so the total dosage is 15 mg/kg × 45 kg = 675 mg. Step 3 is to calculate the volume to administer. The available medication is in a concentration of 1,000 mg/100 mL, which is the same as 10 mg/mL. So, the volume to administer is 675 mg ÷ 10 mg/mL = 67.5 mL. Rounding to the nearest whole number, the nurse should administer 68 mL.
So, the correct answer is 68 mL.
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