A nurse is preparing to administer phenobarbital 6 mg/kg/day PO divided in equal doses every 12 hr to a client who weighs 44 lb. If the available phenobarbital elixir is 20 mg/5 mL, how many mL should the nurse administer per dose?

Answer and Explanation

The Correct Answer is ["15 "]

Step 1: Convert the client’s weight from pounds to kilograms. 1 kg = 2.2 lb, so 44 lb ÷ 2.2 = 20 kg.

Step 2: Calculate the total daily dose of phenobarbital. The doctor ordered 6 mg/kg/day, so 6 mg/kg/day × 20 kg = 120 mg/day.

Step 3: Divide the total daily dose into two equal doses, as it is to be given every 12 hours. So, 120 mg/day ÷ 2 = 60 mg/dose.

Step 4: Calculate the volume of phenobarbital elixir to administer per dose. The available phenobarbital elixir is 20 mg/5 mL, so (60 mg ÷ 20 mg) × 5 mL = 15 mL. The nurse should administer 15 mL of phenobarbital elixir per dose.

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Free Nursing Study Resources

Correct Answer is ["2.5 "]

Explanation

The nurse should administer 2.5 tablets of prednisone. Here’s the calculation: Step 1: The total dosage required is 50 mg.

Step 2: Each tablet contains 20 mg of prednisone.

Step 3: So, the number of tablets required is 50 mg ÷ 20 mg/tablet = 2.5 tablets.

Correct Answer is ["0.75 "]

Explanation

Step 1: Calculate the volume of meperidine injection to administer. The available meperidine injection is 100 mg/mL, so 75 mg ÷ 100 mg/mL = 0.75 mL. The nurse should administer 0.75 mL of meperidine injection.

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A nurse is preparing to administer phenobarbital 6 mg/kg/day PO divided in equal doses every 12 hr to a client who weighs 44 lb. If the available phenobarbital elixir is 20 mg/5 mL, how many mL should the nurse administer per dose?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer 50 mg of prednisone PO to a client. If the available prednisone is 20 mg/tablet, how many tablets should the nurse administer?

Correct Answer is ["2.5 "]

Explanation

A nurse is preparing to administer meperidine 75 mg IM stat. If the available meperidine injection is 100 mg/mL, how many mL should the nurse administer?

Correct Answer is ["0.75 "]

Explanation

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A nurse is preparing to administer phenobarbital 6 mg/kg/day PO divided in equal doses every 12 hr to a client who weighs 44 lb. If the available phenobarbital elixir is 20 mg/5 mL, how many mL should the nurse administer per dose?