A nurse is preparing to administer cefadroxil oral suspension 15 mg/kg PO to a client who weighs 98 lb. Available is cefadroxil 250 mg/5 mL. Which of the following actions should the nurse take first?

Choice A rationale:

Rounding the amount to be administered to the nearest whole number is a step that may be necessary, but it should not be the first action taken. The nurse should first ensure that the dosage calculation is accurate and based on the client's weight in kilograms. Once the dosage in milligrams is calculated, rounding can be considered.

Choice B rationale:

Calculating the dosage in milligrams is an essential step, but it is not the first action the nurse should take. To determine the correct dosage in milligrams, the nurse needs to convert the client's weight from pounds to kilograms first, as the medication order is given in milligrams per kilogram.

Choice C rationale:

Calculating the dosage in milliliters is not the first action to take because the medication is available in milligrams, and the order is based on weight in kilograms. Converting the weight to kilograms is the initial step to ensure that the dose is calculated correctly.

Choice D rationale:

Converting the client's weight to kilograms is the first and most crucial step in this dosage calculation. The medication order is given in milligrams per kilogram, and the client's weight is provided in pounds. To ensure accurate dosing, the nurse must convert the weight to kilograms, as this is the foundation for calculating the correct dosage in milligrams.