<unk>  is a medical sign observed in patients with low calcium. From 1 to 4 percent of normal patients will test positive for<unk> 's sign of<unk><unk> . This sign may be positive before other manifestations of hypocalcemia such as hyperreflexia and<unk> , as such it is generally believed to be more sensitive (94%) than the Chvostek sign (29%) for hypocalcemia. To elicit the sign, 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 sign 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 sign is named after French physician Armand<unk>  who described the phenomenon in 1861. It is distinct from the<unk>  sign of malignancy.
Trousseau sign of latent tetany
symptom of Tetanus
Gallavardin phenomenon
symptom of Atrial fibrillation
symptom of Ventricular fibrillation
symptom of Cardiogenic shock
Kanavel's cardinal signs
symptom of Subacute bacterial endocarditis