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?
Infant's birth weight is tripled.
Lateral incisors are present.
Posterior fontanel is closed.
Infant sits well without support.
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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Correct Answer is C
Explanation
Choice A rationale
Performing ROM exercises can cause stress on the infant's developing bones and muscles and is not the priority for spina bifida.
Choice B rationale
Feeding through an NG tube is not necessary unless the infant has feeding difficulties related to spina bifida.
Choice C rationale
Placing the infant in a prone position prevents pressure on the lesion, reducing the risk of injury and infection.
Choice D rationale
Covering the lesion with a dry cloth can cause the area to dry out and is not recommended; sterile, moist dressings are preferred.
Correct Answer is B
Explanation
Choice A rationale
Infants typically do not double their birth weight by 2-3 months. This milestone is more commonly reached slightly later in infancy.
Choice B rationale
By 5-6 months, many infants double their birth weight, indicating healthy growth and development. This timeline aligns with common pediatric growth patterns.
Choice C rationale
While growth continues at a steady pace, most infants have already doubled their birth weight before reaching 9 months. This age generally marks further physical and
developmental milestones.
Choice D rationale
By 12 months, infants have typically more than doubled their birth weight. This age is associated with continued growth, development, and new milestones.