Trousseau Sign

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan.


Trousseau’s sign for latent tetany is most commonly positive in the setting of hypocalcemia. The sign is observable as a carpopedal spasm induced by ischemia secondary to the inflation of a sphygmomanometer cuff, commonly on an individual’s arm, to 20 mmHg over their systolic blood pressure for 3 minutes. The carpopedal spasm is visualized as flexion of the wrist, thumb, and metacarpophalangeal joints with hyperextension of the fingers.

Publication types

  • Study Guide