Trousseau sign
Trousseau's sign is the Tauer's sign. Even if a tourniquet or sphygmomanometer is used to inflate the forearm to inflate to 20mmHg above systolic pressure for 3 minutes, the upper arm vein can also be compressed by hand to reduce the blood supply to the hand and trigger wrist spasm. Positives may be alkalosis, hypomagnesemia, hypokalemia, or hyperkalemia.
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