Final answer:
A positive Chvostek's sign indicates hypocalcemia, which is an abnormally low level of calcium in the blood.
Step-by-step explanation:
A positive Chvostek's sign indicates hypocalcemia, which is an abnormally low level of calcium in the blood. Hypocalcemia can lead to various symptoms such as muscle spasms, numbness and tingling in the extremities, and even seizures or cardiac arrhythmias.
Hypocalcemia can occur due to various reasons, including vitamin D deficiency, hypoparathyroidism, or kidney disease. It is important to identify and treat the underlying cause of hypocalcemia to prevent further complications.
Therefore, the correct answer is C) Hypocalcemia.