A nurse is assessing a toddler at a well-child visit.
At what point in the physical examination should the nurse examine the child's tympanic membrane?
At the beginning.
Before auscultating the chest and abdomen.
Before examining the head and neck.
At the end.
The Correct Answer is D
Choice A rationale
Examining the tympanic membrane at the beginning may cause distress to the child and make the rest of the exam difficult.
Choice B rationale
Before auscultating the chest and abdomen, the child needs to be calm and cooperative, which might not be the case if their ear is examined first.
Choice C rationale
Examining the tympanic membrane before the head and neck could lead to increased anxiety and uncooperativeness in the child during the rest of the exam.
Choice D rationale
Examining the tympanic membrane at the end allows for a more accurate and complete examination without causing the child to become distressed early in the process.
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Correct Answer is ["A"]
Explanation
Step 1 is 33 lb × (1 kg ÷ 2.2 lb) = 15 kg.
Step 2 is 30 mg/kg/day × 15 kg = 450 mg/day.
Step 3 is 450 mg/day ÷ 2 = 225 mg per dose.
Step 4 is 225 mg ÷ (200 mg/5 mL) = 5.625 mL. The final calculated answer is 5.6 mL.
Correct Answer is B
Explanation
Choice A rationale
A pincer grasp, using the thumb and index finger to pick up small objects, typically develops around 9 to 12 months of age, not at 4 months.
Choice B rationale
The posterior fontanel typically closes by the age of 2 to 3 months, so a 4-month-old infant would be expected to have a closed posterior fontanel. This finding is consistent with normal development.
Choice C rationale
Lateral incisors, the teeth on either side of the front teeth, typically erupt around 9 to 13 months of age, not at 4 months.
Choice D rationale
Sitting steadily without support generally occurs closer to 6 to 8 months of age, so it would not be expected in a 4-month-old infant.