A child weighing 18 pounds has been prescribed amoxicillin at a dosage of 25 mg/kg/day. The medication is to be administered orally in two divided doses every 12 hours.

The label on the bottle reads, “Amoxicillin for Oral Suspension, USP 400 mg per 5 mL.”. How many mL should the nurse administer for each dose? (Provide a numerical value only.

If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["1.3"]

Step 1: First, convert the child’s weight from pounds to kilograms. Since 1 pound is approximately 0.45 kilograms, an 18-pound child weighs about 8.16 kilograms (18 pounds × 0.45 kg/pound).

Step 2: Next, calculate the total daily dosage of amoxicillin. The prescribed dosage is 25 mg/kg/day. Therefore, the total daily dosage is 204 mg/day (8.16 kg × 25 mg/kg).

Step 3: Since the medication is to be administered in two divided doses every 12 hours, each dose should be half of the total daily dosage. Therefore, each dose is 102 mg (204 mg/day ÷ 2).

Step 4: Finally, calculate the volume of the suspension to be administered for each dose. The label on the bottle reads, “Amoxicillin for Oral Suspension, USP 400 mg per 5 mL.”. Therefore, each milliliter of the suspension contains 80 mg of amoxicillin (400 mg/5 mL). To administer a dose of 102 mg, the nurse should administer approximately 1.275 mL (102 mg ÷ 80 mg/mL). If rounding is required, round to the nearest tenth.

Therefore, the nurse should administer 1.3 mL for each dose.

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Correct Answer is C

Explanation

The correct answer is: C

Choice A reason: Comparing the child’s vital signs over the past three weeks could provide data on any changes in his physical health status. However, without additional context, this information alone may not be sufficient to determine the cause of his symptoms. Vital signs are typically within the following ranges for a healthy 10-year-old: temperature 97.8°F to 99.1°F (36.5°C to 37.3°C), pulse 70 to 110 beats per minute, respirations 17 to 22 breaths per minute, and blood pressure 90/60 mmHg to 120/80 mmHg.

Choice B reason: Counseling the parents to pay more attention to the child might be helpful if the child’s symptoms are due to emotional neglect or lack of parental involvement. However, this intervention assumes that the parents are not attentive without evidence and does not directly address the child’s reported symptoms.

Choice C reason: Asking the boy to describe a typical day at school is a non-invasive way to gather more information about potential stressors or issues that could be contributing to his symptoms. This approach can help identify if the symptoms are related to school environment, bullying, academic pressure, or other psychosocial factors.

Choice D reason: Conducting a complete neurological assessment would be appropriate if there were specific indications of neurological issues. Since the boy’s symptoms are non-specific and could be related to a variety of causes, including stress or anxiety, a neurological assessment might not be the most immediate step without further evidence suggesting a neurological cause.

Correct Answer is ["1.8"]

Explanation

Step 1: Calculate the total dose of diazepam for this child by multiplying the child’s weight (30 kg) by the prescribed dose (0.3 mg/kg). This calculation gives a total dose of 9 mg (30 kg × 0.3 mg/kg = 9 mg).

Step 2: Divide the total dose (9 mg) by the concentration of the medication (5 mg/mL) to determine the volume to be administered. This calculation gives a volume of 1.8 mL (9 mg ÷ 5 mg/mL = 1.8 mL).

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Naxlex Comprehensive Predictor Exams

A 10-year-old boy has been seen frequently by the school nurse over the past three weeks after school begins in the fall. He reports headaches, stomach aches, and difficulty sleeping. Which intervention should the nurse implement?

Correct Answer is C

Explanation

Correct Answer is ["1.8"]

Explanation

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