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A nurse is collecting data from a 6-month-old infant in the well child clinic.
Which of the following findings should the nurse expect?

A.

Infant's birth weight is tripled.

B.

Lateral incisors are present.

C.

Posterior fontanel is closed.

D.

Infant sits well without support.

Answer and Explanation

The Correct Answer is C

Choice A rationale

The infant's birth weight typically doubles by 4-6 months and triples by 1 year of age. If an infant's weight has tripled at 6 months, it may indicate overnutrition or an underlying health condition.

 

Choice B rationale

Lateral incisors usually appear between 9 to 13 months. At 6 months, the central incisors are more likely to be emerging.

 

Choice C rationale

The posterior fontanel typically closes by 2 to 3 months of age. Therefore, by 6 months, it is expected to be closed.

 

Choice D rationale

Infants usually sit without support around 8 months. At 6 months, they may sit with support or briefly without support but not consistently.


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View Related questions

Correct Answer is D

Explanation

Choice A rationale

Introducing well-cooked table foods should begin around 8-10 months of age when the baby is ready for finger foods and has developed better chewing skills.

Choice B rationale

Starting solid foods at 3 months old is too early and can interfere with breastfeeding or formula feeding, increasing the risk of allergies and digestive issues.

Choice C rationale

Cow's milk should not be introduced until 12 months of age, as infants need the nutrients from breast milk or formula during their first year for optimal growth.

Choice D rationale

It is recommended to wait until the baby is at least 6 months old before introducing fruit juice, and even then, it should be given in limited quantities to avoid excessive sugar intake.

Correct Answer is ["A","B","C","D","E"]

Explanation

Step 1: lb ÷ (2.2 lb/kg) = 10 kg

Step 2:.5 mg/kg/day × 10 kg = 15 mg/day

Step 3: mg/day ÷ 4 doses/day = 3.75 mg/dose

Step 4:.75 mg ÷ 1 mg/mL = 3.75 mL per dose

The calculated answer is 3.8 mL (rounded to the nearest tenth)

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