患者,男,24岁。因过敏性鼻炎反复发作,在本院门诊做特异性过敏原皮试6种(1:100尘、螨、豚草、葎草、青霉、法国梧桐皮试液)。12分钟后患者突然感头昏、目眩、心悸、出汗、肢冷、呼吸困难。体检:神志淡漠、脉搏速而弱(160次/分),血压5.3/0KPa(40/0mmHg)。两肺闻及干性罗音。急查 Patient, male, 24 years old. Due to recurrent allergic rhinitis, in our hospital out of the specific allergen skin test 6 (1: 100 dust, mites, ragweed, razor clams, Penicillium, French paulownia skin test solution). After 12 minutes, the patient suddenly feels dizzy, dizzy, palpitations, sweating, cold extremities and breathing difficulties. Physical examination: indifference, pulse speed and weak (160 beats / min), blood pressure 5.3 / 0KPa (40 / 0mmHg). Both lungs smell dry rales. Urgent investigation