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 B
Explanation
Choice A rationale
Feet size variations are typically not a focus in adolescent development comparisons between genders.
Choice B rationale
Height differences are significant during puberty, with boys often experiencing growth spurts at different times compared to girls.
Choice C rationale
Eyesight differences are not a common developmental comparison between adolescent boys and girls.
Choice D rationale
Speech development differences exist but are not typically a focal point of peer comparison during adolescence.
Correct Answer is C
Explanation
Choice A rationale
Placing the infant safety seat in the middle of the back seat away from the windows is the safest position, protecting the child from potential impact during accidents and from direct
sunlight or objects coming through windows.
Choice B rationale
Following the child's weight and height is crucial for safely transitioning from an infant car seat to a booster seat. This ensures proper restraint and protection as the child grows.
Choice C rationale
Allowing a baby to watch the driver while in the back seat indicates a forward-facing position, which is unsafe for infants. Rear-facing positions provide the best protection for an
infant's head, neck, and spine.
Choice D rationale
Using a previously owned car seat with intact instructions can ensure proper installation and use. However, checking the seat's history and condition is crucial to ensure it meets
current safety standards.