Some passengers were walking through one of the big halls at

De Gaulle Airport _____ the whole roof (屋顶) fell down. [ ]

A. while

B. as soon as

C. when

D. after

简要病史：女性，50岁。因神志不清伴全身出汗半小时家人送来急诊就诊。既往有"糖尿病"病史8年。要求：你作为住院医师，请围绕以上简要病史，写出应该询问的患者现病史及相关病史的内容。