1病历介绍男，64岁。因发热、咳嗽、呼吸困难7天入院。7天前，在大风中强体力劳动1天，当晚即发热达39”C，在家肌注复方氨基比林1支后热退。次日始咳嗽，吐少量白色粘稠痰，未治疗，后渐感活动后呼吸困难，乏力，纳差，遂就诊。既往健康，无重要病史。查体：T38℃，一般情况可 1 medical records male, 64 years old. Due to fever, cough, difficulty breathing 7 days admission. 7 days ago, a strong labor force in the wind for 1 day, the night that fever up to 39 "C, intramuscular injection of compound aminopyrine 1 after the heat back. The next day cough, spit a small amount of white viscous sputum, untreated, after Gradually sensory activity after breathing difficulties, fatigue, anorexia, then treatment. Past health, no important medical history. Physical examination: T38 ℃, the general situation can be