護理師照護一位術後正接受持續靜脈肝素治療的病人，下列哪項實驗室檢測結果應優先回報？
A nurse is caring for a postoperative client who is receiving continuous IV heparin therapy. Which laboratory finding should the nurse prioritize for reporting?
- APT 12 seconds凝血酶原時間 12 秒
- BaPTT 95 seconds✓ 正解活化部分凝血活酶時間 95 秒
- CINR 1.1國際標準化比值 1.1
- DPlatelet count 140,000/mm³血小板計數 140,000/mm³
肝素治療的目標 aPTT 通常為對照值的 1.5-2 倍。此數值 95 秒若超過醫院設定的危險值（通常 >80-90 秒），代表出血風險極高，需立即停止輸注或調整劑量。PT/INR 是監測華法林（Warfarin）的指標，14 萬的血小板雖低但未達危險性血小板低下（HIT）的警戒線。
The target aPTT for heparin therapy is typically 1.5-2 times the control value. If this value of 95 seconds exceeds the institution's critical threshold (often >80-90 seconds), it indicates a very high bleeding risk and requires immediately stopping the infusion or adjusting the dose. PT/INR is the monitoring parameter for warfarin. A platelet count of 140,000/mm³ is low but has not yet reached the alert level for heparin-induced thrombocytopenia (HIT).
美台臨床皆依據 aPTT 調整肝素。美國護理師常依據 Protocol 自行調整給藥速率，台灣則多需與醫師確認後執行。