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Difficulty: EasyPharmacological and Parenteral Therapies

A nurse is preparing to administer intravenous (IV) ceftazidime to a pediatric client who weighs 24 kg24\text{ kg}. The healthcare provider's prescription is for 50 mg/kg/day50\text{ mg/kg/day} administered in 44 equally divided doses. How many milligrams (mg) should the nurse administer for one single dose?

  1. 300Answer
  2. B
    1,200
  3. C
    600
  4. D
    150

Answer

The nurse should administer 300 mg per dose.
To find the correct single dose, first determine the total daily dose by multiplying the weight by the dose parameter (24 kg×50 mg/kg=1,200 mg24\text{ kg} \times 50\text{ mg/kg} = 1,200\text{ mg}). Next, divide that total amount by the frequency of doses per day (1,200 mg÷4=300 mg1,200\text{ mg} \div 4 = 300\text{ mg}).

Step-by-Step Solution

1
Calculate the total daily dose by multiplying the client's weight in kilograms by the prescribed daily dose per kilogram.
24 kg×50 mg/kg/day=1,200 mg/day24\text{ kg} \times 50\text{ mg/kg/day} = 1,200\text{ mg/day}
This establishes the total amount of medication the client requires over a full 24-hour period.
2
Calculate the single dose amount by dividing the total daily dose by the number of doses prescribed per day.
1,200 mg/day÷4 doses=300 mg/dose1,200\text{ mg/day} \div 4\text{ doses} = 300\text{ mg/dose}
The prescription explicitly requires the total daily amount to be split into 4 equal, separate administrations.

Key Concept

Pediatric weight-based dosage calculation
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Topics

Pharmacological and Parenteral Therapies

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