Good J T, Taryle D A, Maulitz R M, Kaplan R L, Sahn S A
Chest. 1980 Jul;78(1):55-9. doi: 10.1378/chest.78.1.55.
One hundred eighty-three patients had simultaneous blood and pleural fluid pH determinations. Thirty-six effusions were transudates, and 147 were exudates. In 46 effusions, the pleural fluid pH was less than 7.30; all 46 were exudates. A pleural fluid pH less than 7.30 was associated with the following six diagnoses: (1) empyema; (2) malignancy; (3) collagen vascular disease; (4) tuberculosis; (5) esophageal rupture; and (6) hemothorax. The results of pleural fluid pH determination are immediately available, narrow the differential diagnosis of the exudate, and may expedite patient management. The pH of pleural fluid should be measured whenever a diagnostic thoracocentesis is performed.
183例患者同时进行了血液和胸腔积液pH值测定。36例积液为漏出液，147例为渗出液。46例积液的胸腔积液pH值小于7.30；这46例均为渗出液。胸腔积液pH值小于7.30与以下六种诊断相关：（1）脓胸；（2）恶性肿瘤；（3）胶原血管病；（4）结核病；（5）食管破裂；（6）血胸。胸腔积液pH值测定结果可立即获得，缩小了渗出液的鉴别诊断范围，并可能加快患者的治疗。每当进行诊断性胸腔穿刺术时，都应测量胸腔积液的pH值。
