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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hyperkalemia is an increase in potassium levels, which may occur with certain conditions but is not the most common finding with vomiting and diarrhea.
B. Hypocalcemia may occur due to various factors but is not a typical result of vomiting and diarrhea.
C. Hyponatremia is a decrease in sodium levels and is expected in cases of prolonged vomiting and diarrhea due to the loss of fluids and electrolytes, making it the most likely finding.
D. Hypermagnesemia is not typically associated with vomiting and diarrhea; it is more related to renal failure or excessive intake of magnesium.
Correct Answer is B
Explanation
A. Suggesting a formal complaint may escalate the situation and does not directly address the AP's concerns.
B. This response uses reflective listening to acknowledge the assistive personnel’s feelings, encouraging open communication and further discussion.
C. This response dismisses the AP's concerns and could discourage open communication.
D. Telling the AP to "wait a little longer" dismisses their feelings and may come across as unsupportive.
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