A nurse is caring for an infant who has otitis media and is to receive amoxicillin 30 mg/kg/day in divided doses every 12 hr. The child weighs 13 lb. How many mg should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["89"]
Determine the infant's weight in kg:13 lb ÷ 2.2 = 5.91 kg
Calculate the total daily dose:30 mg/kg/day × 5.91 kg = 177.3 mg/day
Divide the total daily dose by 2 (since the medication is given every 12 hours):177.3 mg ÷ 2 = 88.65 mg per dose
Round to the nearest whole number:89 mg per dose
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. "Keep the car seat in a rear-facing position until your infant is 2 years old." The American Academy of Pediatrics (AAP) recommends keeping infants in a rear-facing car seat until at least 2 years of age or until they reach the height and weight limits specified by the car seat manufacturer for optimal safety.
B. "Fasten the harness over your infant's winter coat." Bulky clothing (such as winter coats) should not be worn under the harness because it can create excess space, reducing the effectiveness of the restraint and increasing injury risk. Instead, the infant should be dressed in thin layers, and a blanket can be placed over the secured harness if warmth is needed.
C. "Ensure the airbag is activated if the car seat is in the front passenger seat." Infants should never be placed in the front passenger seat if the car has an active airbag. Airbags can cause severe injury or death if deployed while a rear-facing car seat is in place. The safest position is always in the back seat.
D. "Pad the backrest of the car seat with a thick blanket before securing your infant." Additional padding should not be used, as it can interfere with the proper fit of the harness and compromise safety. Car seats are designed to provide adequate support and protection without extra cushioning.
Correct Answer is A
Explanation
A. "Capillary refill less than 2 seconds." A capillary refill time of less than 2 seconds indicates adequate hydration and perfusion, showing that the fluid replacement therapy has been effective.
B. "Potassium 5.6 mEq/L (3.4 to 4.7 mEq/L)." A potassium level of 5.6 mEq/L is elevated (hyperkalemia) and suggests an imbalance, which can result from inadequate kidney function or excessive potassium intake rather than effective rehydration.
C. "Voiding less than 1 mL/kg/hr." Decreased urine output is a sign of persistent dehydration or kidney dysfunction. Effective fluid therapy should restore normal urine output, typically greater than 1 mL/kg/hr in children.
D. "Tachycardia." Tachycardia is a sign of dehydration. If fluid replacement were effective, heart rate should normalize, not remain elevated.
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