疾病终末期的肺炎常发生于晚期病人或长期卧床不起、体质极度衰弱者。诱发的主要内因是机体抵抗力减弱、免疫功能低下和呼吸系防御机制的削弱。常见的临终疾病和情况有:恶性肿瘤、脑出血、各种白血病、重症糖尿病酮症、肾功能衰竭、烧伤、脑外伤、心脏外科术后、脏器移植、放射线治疗、免疫球蛋白异常、气管切开和长期应用抗癌药物、类固醇和 Disease end-stage pneumonia often occurs in patients with advanced or long-term bedridden, physical weakness. The main cause of the induced immune system is weakened immunity, immune dysfunction and respiratory defense mechanism weakened. Common dying diseases and conditions are: malignant tumors, cerebral hemorrhage, various leukemias, severe diabetic ketosis, renal failure, burns, traumatic brain injury, post-cardiac surgery, organ transplantation, radiation therapy, immunoglobulin abnormalities, trachea Cut and long-term use of anti-cancer drugs, steroids and