A nurse is planning care for a child who has varicella.
Which of the following interventions should the nurse plan to include?

The nurse should administer 8 mL of amoxicillin per dose.

Here’s the calculation:

First, calculate the total daily dose of amoxicillin: 80 mg/kg/day * 10 kg = 800 mg/day.

Next, divide the total daily dose by the number of doses per day to find the dose per administration: 800 mg/day / 2 doses/day = 400 mg/dose.

Finally, use the medication concentration to determine how many mL to administer per dose: 400 mg/dose * (5 mL/400 mg) = 5 mL/dose.

Since the answer must be rounded to the nearest whole number, the final answer is 8 mL per dose.

Choice A is wrong because it would result in an underdose of amoxicillin.

Choice B is wrong because it would result in an underdose of amoxicillin.

Choice D is wrong because it would result in an overdose of amoxicillin.

The correct answer is d. Exhibits head lag when pulled to a sitting position.

Choice A: Unable to hold a bottle At around 6 months of age, some babies can hold their own bottle. This is not a concerning finding for a 5-month-old infant. Therefore, this is not the correct answer.

Choice B: Unable to roll from back to abdomen Rolling over often starts around 4-6 months, so it’s not unusual for a 5-month-old to still be developing this skill. Therefore, this is not the correct answer.

Choice C: Absent grasp reflex The grasp reflex is an involuntary movement that your baby starts making in utero and continues doing until around 6 months of age. The grasp reflex lasts until the baby is about 5 to 6 months old. Therefore, this is not the correct answer.

Choice D: Exhibits head lag when pulled to a sitting position By the age of 5 months, most infants have developed enough strength in their neck and upper body to control their head movement. This means they should not exhibit a significant head lag when pulled to a sitting position1. If this is not the case, it could indicate a delay in motor development or a potential neurological issue, which should be reported to the healthcare provider for further evaluation. Therefore, this is the correct answer.