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 dosage, first convert the child's weight to kilograms (1 kg = 2.2 lbs), so 55 lbs is approximately 25 kg. The total daily dose of ampicillin prescribed is 50 mg/kg/day, which for a 25 kg child is 1250 mg/day (50 mg/kg * 25 kg). This total daily dose should be divided into 4 equal doses, resulting in 312.5 mg per dose (1250 mg/day ÷ 4 doses/day). The concentration of the ampicillin suspension is 125 mg/5 mL, so to find out how many mL per dose, divide the dose in mg by the concentration and multiply by the volume: 312.5 mg per dose ÷ 125 mg/5 mL = 2.5 * 5 mL = 12.5 mL per dose. Therefore, the nurse should administer 12.5 mL per dose.
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B. Bowling, while weight-bearing, may involve sudden twists and movements that could risk injury for an older adult with osteoporosis.
C. Walking is a weight-bearing exercise that is low-impact, which helps improve bone density and is generally safe and recommended for osteoporosis prevention.
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Correct Answer is C
Explanation
A. While a witness may be required, it does not have to be a family member and may vary by state law.
B. Advance directives specify health care preferences, not organ donation, which usually requires a separate directive.
C. Naming a family member, like a sibling, as a designee in a durable power of attorney for health care is appropriate and is part of ensuring that health care decisions align with the client’s wishes if they become unable to communicate.
D. Advance directives do not require an attorney’s approval to be valid; they are enforced based on the client’s wishes as documented.
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