護理師評估一位接受副甲狀腺切除術的病人。病人主訴嘴巴周圍麻木、刺痛。護理師應檢查哪項最重要的評估發現？
A nurse is assessing a client who has undergone a parathyroidectomy. The client reports numbness and tingling around the mouth. Which assessment finding is most important to check?
- APupillary response瞳孔反應
- BBlood pressure血壓
- CSerum calcium level✓ 正解血清鈣濃度
- DRespiratory rate呼吸頻率
副甲狀腺切除術後，最嚴重的潛在併發症是低血鈣（hypocalcemia）。副甲狀腺素（PTH）負責調節體內鈣離子濃度，手術過程中若損傷副甲狀腺，會導致 PTH 分泌不足，引起血鈣急速下降。低血鈣會增加神經肌肉的興奮性，出現口周麻木、刺痛（Trousseau's 或 Chvostek's sign），嚴重時可導致喉頭痙攣（laryngospasm）甚至呼吸停止。
The most serious potential complication after parathyroidectomy is hypocalcemia. Parathyroid hormone (PTH) regulates calcium; surgical injury to the parathyroid glands reduces PTH and produces a rapid drop in serum calcium. Hypocalcemia increases neuromuscular excitability, causing perioral numbness and tingling (positive Trousseau's or Chvostek's sign) and, in severe cases, laryngospasm and respiratory arrest.