Dosage Calculation Practice Exam 3

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

The nurse is determining the recommended dose of medication for a child. The nursing drug handbook reads "Recommended dose is 15 mg per kg." The child's weight is 25 kg. The recommended dose for this child is:

375 mg

8 lbs. 4 oz = __________ kg

3.8 kg

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

9

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.)

10

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 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

A client with Paget disease who weighs 110 lbs is prescribed 8 mg/kg PO of etidronate disodium. The nurse should administer how many 200 mg tablets?

2 tabs

Remicade 3 mg/kg IV infusion monthly has been prescribed for a client diagnosed with rheumatoid arthritis. The client weighs 150 pounds. How many mg of Remicade will be infused? Round your answer to the nearest whole number.

205

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

The physician orders Kantrex 34 mg IM 3x/day for a 7 lb 8oz infanct. The recommended maximum dosage for infants is 15 mg/kg/day in two equally divided doses. Available is Kantrex 75 mg per 2 mL. Is the ordered dosage safe?

Unsafe

The physician orders cefazolin 2.1 g every 8 hours for a child with a serious joint infection. The child weighs 95 lbs. The drug reference indicates that the usual IM or IV dosae for infants and children is 50 to 100 mg/kg/day divided every 8 hours; maximum dosage is 6 g/day. Is the dosage ordered safe?

Unsafe

6 lbs. 10 oz = __________ kg

3 kg

A child weighs 11 kilograms. The health care provider orders a drug 0.2 mg/kg intravenously. The nurse determines the proper dose as:

2.2 mg

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 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.

The physician orders Pathocil 125 mg PO every 6 hours for a 55 lb. child. The recommended dosage of Pathocil for children weighing less than 40 kg is 12.5 to 50 mg/kg/day PO in equally divided doses every 6 hours for moderate to severe infections. Is this dosage safe?

Safe

A physician orders an intravenous infusion of dextrose 5% in quarter-normal saline solution (D5.25 NSS) to be infused at 7 ml/kg/hour for a 10-month-old infant. The infant weighs 22 lb (10 kg). How many milliliters of the ordered solution would the nurse infuse each hour? Record your answer using a whole number.

70 mL

In preparation for the delivery of anesthesia for surgery, an adult client's weight is measured and documented as 75.7 kg. This measurement is equivalent to how many pounds?

166.5 lb

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.

2