護理師正照護一位接受肝素（heparin）靜脈輸注的病人。哪項實驗室數值需要立即的護理介入？
A nurse is caring for a client receiving an IV infusion of heparin. Which laboratory value requires immediate nursing intervention?
- APTT: 100 seconds✓ 正解PTT：100秒
- BHemoglobin: 14 g/dL血紅素：14 g/dL
- CPlatelet count: 100,000/mm³血小板計數：100,000/mm³
- DPTT: 55 secondsPTT：55秒
肝素（Heparin）治療期間需監測部分凝血活酶時間（PTT）。治療範圍通常為對照值的 1.5-2.5 倍（約 55-85 秒）。PTT 100 秒遠高於正常治療範圍，顯示抗凝血作用過強，病人面臨極高出血風險。護理師應立即停止輸注並通知醫師，等待醫師調整輸注速率或給予拮抗劑（Protamine sulfate）。
Partial thromboplastin time (PTT) must be monitored during heparin therapy. The therapeutic range is generally 1.5 to 2.5 times the control value (approximately 55-85 seconds). A PTT of 100 seconds is well above the therapeutic range, indicating excessive anticoagulation, and the client is at extremely high risk for bleeding. The nurse should immediately stop the infusion and notify the physician, who may adjust the infusion rate or administer the antidote (protamine sulfate).