一名急性胰臟炎病人正處於禁食狀態並接受靜脈輸液。護理師在測量血壓時觀察到 Trousseau's 徵象。這暗示了哪種電解質不平衡？

Trousseau's 徵象（Trousseau's sign）是低血鈣（Hypocalcemia）的特異性臨床徵象，表現為測量血壓時袖帶充氣導致手腕與手指攣縮（助產士手）。急性胰臟炎時，胰臟分泌的酵素導致脂肪壞死，脂肪酸與鈣離子結合形成皂化反應，導致血鈣降低。低血鈣會增加神經肌肉興奮性，嚴重時可能引發喉頭痙攣或癲癇，護理師需密切監測並準備鈣離子補充劑。

Trousseau's sign is a specific clinical sign of hypocalcemia, presenting as carpopedal spasm (an obstetrician's hand) when the blood pressure cuff is inflated. In acute pancreatitis, pancreatic enzymes cause fat necrosis, and fatty acids combine with calcium ions to form soaps (saponification), resulting in lowered serum calcium. Hypocalcemia increases neuromuscular excitability, and in severe cases can cause laryngospasm or seizures; the nurse must monitor closely and prepare calcium supplementation.