Dosage Calculation Practice Exam 3

A child weighs 40 lbs. The medication order reads: 0.5 mg/kg of body weight. The nurse should administer what dose?

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A 44-lb (20-kg) preschooler is being treated for inflammation. The physician orders 0.2 mg/kg/day of dexamethasone by mouth to be administered every 6 hours. The elixir comes in a strength of 0.5 mg/5 ml. How many teaspoons of dexamethasone should the nurse give this client per dose? Record your answer using a whole number.

An antineoplastic medication is prescribed for a child. The nurse is verifying the dose is the recommended dose for a child with a certain body surface area (BSA). The child's BSA is 0.43 m2. The average adult BSA is 1.7 m2, and the usual adult dose of this medication is 40 mg. What is the recommended child's dose? (Round to the nearest whole number.)

A nurse is caring for a 61-year-old client whose health care provider has ordered 2200 mg of ethambutol daily. The recommended dose for ethambutol is 15-25 mg/kg/day. The client weighs 90 kg. Based on dosage calculation, the prescribed dose is:

At the high end of the recommended range.

A nurse is preparing to administer the first dose of tobramycin to an adolescent with cystic fibrosis. The order is for 3 mg/kg I.V. daily in three divided doses. The client weighs 95 lb (43.2 kg). How many milligrams should the nurse administer per dose? Record your answer using one decimal place.

4.3 mg

A child with a urinary tract infection who is prescribed cephalexin 25 mg/kg/day in 3 divided doses. Knowing that the child weighs 15 kilograms, the nurse should administer how many mg with each dose?

125 mg

Medication doses given to children are usually smaller than those given to adults. Doses for children can also be calculated based on the child's weight. Which would be correct when calculating a dose based on weight?

1 kg equals 2.2 lbs

A child weighs 11 kilograms. The health care provider orders a drug as follows: 0.2 mg/kg intravenously. What dose should the nurse administer?

2.2 mg

A child weighs 22 kilograms. The physician orders a drug as follows: "1.1 mg/kg by intramuscular injection." The nurse determines the proper dose as:

24 mg