老年人肺炎是老年人的常见病、多发病,其临床表现常不典型而易误诊、漏诊。老年人肺炎以医院获得性肺炎多见,多继发于各种原发疾病的危重患者,其临床表现不典型。部分老年肺炎典型肺炎实变体征少见,仅表现为呼吸减弱。白细胞总数升高不明显,而中性粒细胞升高常见,且并发症多、病死率高,故在诊 Pneumonia in the elderly is a common disease of the elderly, frequently-occurring disease, its clinical manifestations are often not typical and easily misdiagnosed, missed diagnosis. Elderly pneumonia is more common in hospital-acquired pneumonia, and more often secondary to various primary diseases in critically ill patients, its clinical manifestations are not typical. Some elderly pneumonia typical pneumonia consolidation signs rare, only showed decreased breathing. The total number of leukocytes increased not obvious, and increased neutrophil common, and more complications, high mortality, so in the clinic