咯血是一种常见的急症。引起咯血原因很多,常见的疾病有肺结核、支气管扩张、肺脓肿、肺癌、肺寄生虫病等,其中以肺结核咯血为多见。病人在咯血时,一口口鲜血直向上涌,往往心情紧张,家属也很着急。咯血的主要危险是窒息,此时当务之急是使病人情绪安静下来,卧床休息。同时,病人千万不要憋气。有的病人担心血吐出来可惜了,采取忍的方式,这一忍,很可能使血液滞留在气管内,阻塞 Hemoptysis is a common emergency. A lot of causes of hemoptysis, common diseases are tuberculosis, bronchiectasis, lung abscess, lung cancer, pulmonary parasitic disease, tuberculosis hemoptysis is more common. Patients in the hemoptysis, a straight mouth up the blood, often nervous, their families are very anxious. The main risk of hemoptysis is asphyxiation, at this time the most urgent task is to make patients calm down and rest in bed. At the same time, the patient must not hold your breath. Some patients worry that blood spit it out Unfortunately, the way to forbearance, the tolerance, it is likely to make blood stranded in the trachea, obstruction