A child who weighs 16 pounds receives a prescription for amoxicillin 25 mg/kg/day by mouth in divided doses every 12 hours.
The bottle is labeled, "Amoxicillin for Oral Suspension, USP 200 mg per 5 mL.”. How many mL should the nurse administer with each dose? (Enter numerical value only.
If rounding is required, round to the nearest tenth.)
The Correct Answer is ["2.3"]
Step 1 is to convert the child's weight from pounds to kilograms. 16 pounds ÷ 2.2 = 7.3 kg.
Step 2 is to calculate the total daily dose in mg. 25 mg/kg × 7.3 kg = 182.5 mg.
Step 3 is to determine the dose per administration, divided by 2 since the dose is given every 12 hours. 182.5 mg ÷ 2 = 91.25 mg.
Step 4 is to convert the dose from mg to mL using the concentration of the medication. 91.25 mg ÷ (200 mg/5 mL) = 91.25 ÷ 40 = 2.3 mL per dose. The answer is 2.3 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
This choice suggests assessing if the child can administer the insulin. While it's important for children with diabetes to learn self-care skills, a 10-year-old may not yet be ready to take on the responsibility of injecting insulin regularly. The child might still rely on parental or caregiver support for this task. Moreover, it does not address the immediate issue of the mother's fear of needles.
Choice B rationale
This choice focuses on assessing the mother's parenting skills. It is not directly related to solving the issue of insulin administration. The mother's fear of needles does not necessarily reflect her overall parenting skills. Assessing parenting skills would not provide a practical solution to the child's need for insulin administration.
Choice C rationale
Encouraging the mother to handle the needles could help overcome her fear, but it might not be effective in the short term. The mother might need time and professional help to deal with her fear of needles. This choice does not provide an immediate solution for the child's need for insulin injections.
Choice D rationale
Asking if the father can help with the injections is a practical and immediate solution. If the father is available and comfortable with handling needles, he can take on the responsibility of administering insulin to the child. This ensures that the child's medical needs are met while giving the mother time to overcome her fear of needles.
Correct Answer is A
Explanation
Choice A rationale
Projectile vomiting in an infant with an olive-like mass in the abdomen suggests pyloric stenosis. This condition causes severe vomiting due to gastric obstruction. It's a hallmark symptom and requires monitoring and surgical intervention.
Choice B rationale
While arching the back can occur in various conditions, it is not specifically indicative of pyloric stenosis. It could be a sign of discomfort or other neurological issues but not directly related to the gastrointestinal obstruction seen in pyloric stenosis.
Choice C rationale
Frequent pauses during feeding are common in many infant conditions and are not specific to pyloric stenosis. They indicate general feeding difficulties but are not diagnostic of this particular condition.
Choice D rationale
Coffee-ground emesis indicates bleeding in the gastrointestinal tract but is not typical of pyloric stenosis. The hallmark sign is non-bloody, forceful vomiting due to gastric outlet obstruction.
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