【病例】　男，２５岁。以咳嗽、咳痰１周，高热、呼吸困难、发绀６小时入院。１周前受凉后出现咳嗽、咳痰，未治疗，在篮球赛中突然颜面苍白，口唇、四肢末端发绀，表情淡漠，呼吸浅促，呕吐咖啡样胃内容物，急送门诊。查体：体温４１．４℃，脉搏１５０／ｍｉｎ，呼吸２８／? 【Case】 Male, 25 years old. One week of coughing and coughing, fever, dyspnea, and cyanosis were admitted to the hospital for 6 hours. A cough or cough occurred after a cold 1 week ago. He was untreated. He suddenly had a pale face in the basketball game. He had cyanosis at the end of his lips and extremities. His expression was indifferent, his breath was shallow, and his vomiting of stomach-like contents was sent to the clinic. Physical examination: body temperature 41.4°C, pulse 150/min, breathing 28/?