A patient experiences a spasm of her facial muscles in response to a light tap over the facial nerve below the temple. This finding most likely indicates
a. temporomandibular joint dysfunction.
b. neuroexcitability associated with hypocalcemia.
c. increased risk for developing epilepsy.
d. compression of the facial nerve.
B
A spasm of the facial muscles in response to a light tap over the facial nerve below the temple most likely indicates neuroexcitability associated with hypocalcemia. This is a positive Chvostek's sign and is associated with hypocalcemia and tetanus infection. Pain, limited ROM, and crepitus can occur in temporomandibular joint dysfunction. Temporomandibular joint dysfunction can occur secondary to malocclusion, arthritis, dislocation, poorly fitting dentures, myofacial dysfunction, and trauma.
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