Chvostek Sign

Used For

• Hypocalcemia 
• Seventh cranial (facial) nerve pathology.

How to Perform

• Have the patient sit comfortably, facing the examiner.
• Locate the Facial Nerve: Identify the area just anterior to the ear and below the zygomatic arch.
• Using a reflex hammer or your finger, gently tap the area over the facial nerve.
• Observe the Response: Watch for any twitching of the facial muscles, particularly around the mouth, nose, or eye.

Result

• A positive Chvostek sign is indicated by the twitching of the facial muscles, particularly around the mouth, nose, or eye, in response to the tap.