一位接受甲狀腺全切除術的病人，護理師在測量血壓時發現手足抽搐現象。這暗示哪種電解質失衡？
A nurse is caring for a client who had a total thyroidectomy. The nurse notes carpopedal spasm when checking blood pressure. Which electrolyte imbalance is suggested?
- AHypocalcemia✓ 正解低血鈣
- BHypokalemia低血鉀
- CHypomagnesemia低血鎂
- DHyponatremia低血鈉
甲狀腺全切除術後，若術中誤傷或摘除副甲狀腺，會導致副甲狀腺素（PTH）分泌不足。PTH 負責調節血液中的鈣離子濃度，其缺乏會導致低血鈣（Hypocalcemia）。手足抽搐（Carpopedal spasm）是低血鈣引發神經肌肉過度興奮的特徵性表現（Trousseau's sign），護理師需警覺此電解質失衡。
After total thyroidectomy, if the parathyroid glands are inadvertently injured or removed during surgery, parathyroid hormone (PTH) secretion will be insufficient. PTH is responsible for regulating the calcium ion concentration in the blood, and its deficiency leads to hypocalcemia. Carpopedal spasm is a characteristic manifestation of neuromuscular hyperexcitability caused by hypocalcemia (Trousseau's sign), and the nurse must remain vigilant for this electrolyte imbalance.