Chvostek sign

The Chvostek sign is a slight deduction of the external nerves of the external auditory canal causing involuntary contraction of the facial muscles. 10% of normal healthy people are present. Patients with hypocalcemia, occult nutritional vitamin D deficiency, hand, foot and sputum are often positive. Basic Information Specialist Category: Otolaryngology Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: Use the percussion sputum or finger to slap the facial nerve, the position is 2 to 3 cm in front of the ear, and does not cause the neck twitch to be a negative reaction. Positive: Use the percussion sputum or finger to slap the facial nerve, the position is 2 to 3 cm in front of the ear, causing a positive reaction at the corner of the mouth. Tips: Save your mind before you check and relax your muscles. Normal value Use the percussion sputum or finger to slap the facial nerve, the position is 2 to 3 cm in front of the ear, and does not cause twitching of the mouth. Clinical significance Abnormal result Use the percussion sputum or finger to slap the facial nerve, the position is 2 to 3 cm in front of the ear, causing a positive reaction at the corner of the mouth. The mouth twitch is divided into 1+~4+. 1+ is only noticeable twitching of the mouth, 2+ is obvious twitching of the mouth, 3+ is a slight twitching of the facial muscles, and 4+ is obvious convulsion of the facial muscles. Hypoparathyroidism can induce Chvostek's sign. People who need to be checked People with hypocalcemia, occult nutritional vitamin D deficiency, hand, foot and sputum. Positive results may be diseases: convulsions and convulsions Taboo before the test: Save the relaxed mood and relax the whole body muscles. Requirements for inspection: Actively cooperate with the doctor's work requirements. Inspection process Use the percussion sputum or finger to slap the facial nerve, the position is 2 to 3 cm in front of the ear, causing a positive reaction at the corner of the mouth, and does not cause a negative reaction at the corner of the mouth. Not suitable for the crowd Generally there are no people who are not suitable. Adverse reactions and risks Generally no adverse reactions.