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. Using the incentive spirometer is important for preventing atelectasis, but it does not prevent orthostatic hypotension.
B. Dangling the legs over the side of the bed before standing helps reduce the risk of orthostatic hypotension by allowing the body to gradually adjust to the change in position.
C. Increasing protein intake is important for wound healing and tissue repair, but it does not prevent orthostatic hypotension.
D. Performing regular isometric exercises is important for maintaining muscle strength and mobility, but it does not prevent orthostatic hypotension.
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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