A mother brings in her newborn infant for an assessment and tells the nurse that she has noticed that whenever her newborn's head is turned to the right side, she straightens out the arm and leg on the same side and flexes the opposite arm and leg
After observing this on examination, the nurse tells her that this reflex is:
a.
Abnormal and is called the atonic neck reflex.
b.
Normal and should disappear by the first year of life.
c.
Normal and is called the tonic neck reflex, which should disappear between 3 and 4 months of age.
d.
Abnormal. The baby should be flexing the arm and leg on the right side of his body when the head is turned to the right.
ANS: C
By 2 weeks, the infant shows the tonic neck reflex when supine and the head is turned to one side (extension of same arm and leg, flexion of opposite arm and leg). The tonic neck reflex disappears between 3 and 4 months of age.
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