Trousseau sign is elicited in hypocalcemia when the ionized calcium level is 1.75–2.25 mmol/L.1 The hand adopts a characteristic posture when the sphygmomanometer cuff is inflated above the systolic ...

Physical examination revealed mild hyperreflexia, Chvostek's sign, and Trousseau's sign, . . . Information & Authors Information Published In. New England Journal of Medicine.

Trousseau sign can be a sign of early tetany caused by low calcium. This is a spasm of the wrist and thumb that can happen when a blood pressure cuff is used on the arm. It can be subtle, but ...