Chvostek's Sign - Physical Exam - Hypocalcemia Chvostek's sign is described as the twitching of facial muscles in response to tapping over the area of the facial nerve. Chvostek's sign is neither sensitive nor specific for hypocalcemia, since it is absent in about one third of patients with hypocalcemia and is present in approximately 10% of persons with normal calcium levels. #Chvosteks #Signs #PhysicalExam #Hypocalcemia #Video #Clinical #endocrinology
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