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An infant grabbing things with their entire hand before developing a pincer grasp is an example of what direction of growth?

A.

Proximodistal.

B.

Cephalocaudal.

C.

Distoproximal.

D.

Top-to-bottom.

Answer and Explanation

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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View Related questions

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.

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