Review Plantar Grasp Reflex

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Plantar Grasp Reflex

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Total Questions : 2

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Question 1:

A nurse is assessing a newborn’s plantar grasp reflex.

Which of the following actions should the nurse take to elicit this reflex?

A. Place a finger under the toes and observe for curling. B. Stroke the outer edge of the sole and observe for fanning. C. Apply pressure to the sole and observe for crawling. D. Touch the top of the mouth and observe for sucking.

Answer and Explanation

Choice A:

The nurse should place a finger under the toes and observe for curling.

This is the plantar grasp reflex, which is an involuntary movement that newborns make when their feet are stimulated.The reflex is present at birth and disappears between 9 to 12 months of age.

Choice B:

it describes the Babinski reflex, which is another type of plantar reflex that causes the big toe to flex upward and the other toes to fan out when the sole of the foot is stroked.

Choice C:

it describes the crawling reflex, which is a primitive reflex that causes the newborn to move their legs in a crawling motion when placed on their stomach.

Choice D:

it describes the sucking reflex, which is an oral reflex that causes the newborn to suck on anything that touches their mouth.

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Question 2:

A nurse is caring for a 6-month-old infant who has a plantar grasp reflex.

The nurse should recognize that this reflex is

A. normal for this age group. B. delayed for this age group. C. absent for this age group. D. exaggerated for this age group.

Answer and Explanation

Choice A:

The plantar grasp reflex is an involuntary movement of the toes when the sole of the foot is stimulated.It is usually present at or soon after birth and disappears between 6 and 12 months of age.

It is a sign of normal development and function of the spinal cord and brain.

Choice B:

the plantar grasp reflex is not delayed for this age group.It should be present in all infants younger than 6 months.

Choice C:

the plantar grasp reflex is not absent for this age group.It should be elicited by pressing a thumb against the sole of the foot just behind the toes or by stroking gently the plantar surface medially with a blunt object.

Choice D:

the plantar grasp reflex is not exaggerated for this age group.It consists of the flexion and adduction of all toes as if the toes were firmly grasping the stimulating object.It is tonic in character, meaning that the posture is often maintained for 15 or 30 seconds, or longer during early infancy.

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Plantar Grasp Reflex

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