What is a Negative Chvosteks Sign?
Definition and Causes
A negative Chvosteks sign is a medical condition in which tapping the facial nerve does not cause the facial muscles to contract. This can indicate hypocalcemia, or low calcium levels in the blood. It can also be a sign of other conditions, such as tetany or hypoparathyroidism.Symptoms and Diagnosis
A negative Chvosteks sign is typically diagnosed during a physical examination. The doctor will tap the facial nerve with a reflex hammer and observe whether the facial muscles contract. If the muscles do not contract, the sign is considered negative.
Other symptoms of hypocalcemia may include numbness or tingling in the hands and feet, muscle cramps, and seizures. Blood tests can be used to confirm the diagnosis of hypocalcemia.
Treatment
Treatment for a negative Chvosteks sign depends on the underlying cause. If hypocalcemia is the cause, treatment will focus on raising calcium levels in the blood. This can be achieved through diet, supplements, or intravenous infusions.
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