<unk>  is a medical<unk>  observed in patients with low calcium. This<unk>  may become positive before other gross manifestations of hypocalcemia such as hyperreflexia and<unk> , as such it is generally believed to be more sensitive (94%) than the Chvostek<unk>  (29%) for hypocalcemia.
To elicit the<unk> , a blood pressure cuff is placed around the arm and inflated to a pressure greater than the systolic blood pressure and held in place for 3 minutes. This will occlude the brachial artery. In the absence of blood flow, the patient's hypocalcemia and subsequent neuromuscular irritability will induce spasm of the muscles of the hand and forearm. The wrist and metacarpophalangeal joints flex, the DIP and PIP joints extend, and the fingers adduct. The<unk>  is also known as main d'accoucheur (French for "hand of the obstetrician") because it supposedly resembles the position of an obstetrician's hand in delivering a baby.
The<unk>  is named after French physician Armand<unk>  who described the phenomenon in 1861. It is distinct from the<unk> <unk>  of malignancy.
Trousseau sign of latent tetany
Noonan syndrome ECG findings
Second degree AV block laboratory findings
Asplenia electrocardiogram
Short QT syndrome electrocardiogram
Brugada syndrome electrocardiogram
Premature atrial contraction laboratory findings
Junctional bradycardia laboratory findings