The nurse is providing car seat safety education to the parent of an 18-month-old.
Which statement by the parent requires the nurse to re-educate them about this topic?
A child less than 24 months of age should be in a rear-facing car seat.
The chest buckle should be at the level of the child's nipple line.
A child is switched to a forward-facing car seat at 12 months.
The car seat should be placed in the back seat.
The Correct Answer is C
Choice A rationale
AAP guidelines recommend rear-facing car seats for children under 24 months due to superior protection in a collision.
Choice B rationale
The chest buckle should be at armpit level to prevent injury in case of a crash.
Choice C rationale
Switching to a forward-facing car seat at 12 months contradicts safety recommendations; the child should remain rear-facing until at least 2 years old.
Choice D rationale
Car seats should always be placed in the back seat to minimize risk from front airbags during collisions.
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Correct Answer is A
Explanation
Choice A rationale
Proximodistal development refers to growth from the center of the body outward to the extremities. An infant grabbing with their whole hand (palmar grasp) before developing a
pincer grasp demonstrates this pattern, as they gain control of arm movements before fine motor skills in the fingers.
Choice B rationale
Cephalocaudal development refers to growth from head to toe, such as gaining control over head and neck muscles before the limbs. This does not directly explain the grasping
behavior described.
Choice C rationale
Distoproximal is not a recognized term in developmental science and does not describe a growth pattern.
Choice D rationale
Top-to-bottom is another way of describing cephalocaudal development but does not specifically address the described behavior in grasping development. .
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.