護理師照護一位胸管引流的病人，哪些發現需要立即通知醫師？（選所有適合的）

核心概念：胸管（Chest Tube）引流併發症的辨識與通報。 為何正確答案對： A. 在水封瓶（Water Seal Chamber）中持續冒泡（Continuous bubbling）表示有氣體不斷從胸腔漏入引流系統，這意味著仍有氣胸（Pneumothorax）且漏氣持續存在，需要密切監測並可能需要調整引流管或治療。若漏氣量過大，可能需要進一步介入。 B. 每小時引流出 200 mL 的鮮紅色血液（200 mL of bright red blood in one hour）表示活動性出血（Active bleeding）。對於胸管引流，這是一個異常大量且鮮紅的出血量，可能來自胸腔內血管損傷，需要立即評估出血原因並通知醫師。 D. 胸管引流量突然減少（Sudden decrease in chest tube drainage）可能表示管路阻塞（Kinked or Clotted Tube）、病人體位改變導致引流不暢，或肺部已復張但仍有少量積液。無論何種原因，引流效率下降都可能導致胸腔內壓力增加，需要立即評估原因。 E. 插入部位周圍出現皮下氣腫（Subcutaneous emphysema near the insertion site）表示空氣從胸腔或引流系統滲漏到皮下組織。雖然少量皮下氣腫可能無大礙，但若範圍擴大或伴隨呼吸窘迫，則表示漏氣嚴重，需要密切監測並通知醫師。 為何其他選項錯： C. 水封瓶中隨呼吸出現波動（Fluctuation in the water seal chamber with breathing）是正常的現象，表示引流管與胸腔連通，且呼吸時胸腔內壓力變化能引起水柱波動，說明引流系統運作正常。

Core concept: recognition and reporting of chest tube drainage complications. Why the correct answers are right: A. Continuous bubbling in the water seal chamber indicates that air is constantly leaking from the pleural space into the drainage system, meaning a pneumothorax is still present and the air leak is ongoing; close monitoring is required and adjustment of the tube or further treatment may be needed. If the leak is large, additional intervention may be necessary. B. Drainage of 200 mL of bright red blood in one hour indicates active bleeding. For chest tube drainage, this is an abnormally large volume of bright red blood, possibly from an intrathoracic vascular injury, and the source of bleeding must be evaluated immediately and the provider notified. D. A sudden decrease in chest tube drainage may signal a kinked or clotted tube, impaired drainage due to a change in the client's position, or a re-expanded lung with only minimal residual effusion. Regardless of the cause, reduced drainage efficiency can raise intrapleural pressure and must be evaluated promptly. E. Subcutaneous emphysema near the insertion site means air is leaking from the pleural space or the drainage system into subcutaneous tissue. Although a small amount may be benign, expanding emphysema or accompanying respiratory distress signals a significant air leak that requires close monitoring and provider notification. Why the other options are wrong: C. Fluctuation in the water seal chamber with breathing (tidaling) is a normal finding, demonstrating that the drainage tube is communicating with the pleural space and that respiratory pressure changes are causing the water column to move, which indicates the drainage system is functioning properly.