Chvostek's sign

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Chvostek's sign

 [khvos´teks)] (Chvostek-Weiss sign [khvos´tek-vīs´)]) a spasm of the facial muscles elicited by tapping the facial nerve in the region of the parotid gland; seen in tetany.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Chvostek's sign

An indication of the hypersensitivity of muscles occurring in conditions of lowered blood calcium. Tapping the branches of the facial nerve in front of the ear with the finger tip causes twitching of the muscles of the face. This is an indication of latent TETANY. (Franz Chvostek, 1835–84, Austrian surgeon).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005