When assessing the left foot planter reflex of an adult client, the nurse observes an extension of the great toe and fanning of other toes. Which interpretation of this finding is accurate?
Explanation & Rationale
A. An extension of the great toe and fanning of other toes is known as a positive Babinski sign, which is abnormal in adults. This response is typically seen in infants but indicates neurological damage or dysfunction in adults. B. An exaggerated reflex would usually refer to hyperreflexia, but the Babinski sign specifically involves the abnormal extension of the toes, not just an exaggerated reflex. This response is more associated with neurological damage than simple exaggeration. C. The Babinski sign can sometimes be associated with central nervous system issues, including meningeal irritation. However, meningeal irritation often involves other symptoms such as neck stiffness, fever, and photophobia, which are not mentioned here. D. A positive Babinski sign is a classic indication of pyramidal tract disease, which affects the corticospinal tract. This type of neurological dysfunction can be seen in conditions like stroke, multiple sclerosis, or brain injury.