A nurse is preparing to administer ampicillin to a school-age child who weighs 55 lb. The provider prescribes 50 mg/kg/day in 4 equal doses. Available is ampicillin oral suspension 125 mg/5 mL. How many ml should the nurse administer with each dose?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["12.5"]
To calculate the dose of ampicillin for a school-age child who weighs 55 lb, follow these steps: Convert the weight from pounds to kilograms:
55 lb × 1 kg/2.2 lb = 25 kg
Calculate the total daily dose of ampicillin:
50 mg/kg/day × 25 kg = 1250 mg/day
Divide the total daily dose by the number of doses per day:
1250 mg/day ÷ 4 doses/day = 312.5 mg/dose
Convert the dose from milligrams to milliliters using the concentration of the oral suspension:
312.5 mg/dose ÷ 125 mg/5 mL = 12.5 mL/dose
So, the nurse should administer approximately 12.5 mL of ampicillin oral suspension with each dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. A client who has rubella may be at risk for acquiring varicella from the client with herpes zoster.
B. A client who has had varicella is immune to varicella and is not at risk for acquiring herpes zoster from the client.
C. A client who is HIV-positive may be at risk for acquiring varicella from the client with herpes zoster.
D. A client who has tuberculosis may be at risk for acquiring varicella from the client with herpes zoster.
Correct Answer is D
Explanation
Rationale:
A. Small, raised vesicles over the body may indicate an allergic reaction but are not typically associated with IV antibiotics.
B. Rhinitis may indicate an allergic reaction but is not typically associated with IV antibiotics.
C. Itching of the skin may indicate an allergic reaction but is not typically associated with IV antibiotics.
D. Severe wheezing may indicate an allergic reaction or anaphylaxis and should be reported immediately.
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