An infant grabbing things with their entire hand before developing a pincer grasp is an example of what direction of growth?
Proximodistal.
Cephalocaudal.
Distoproximal.
Top-to-bottom.
The Correct Answer is A
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. .
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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 ["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.