患儿,男、6个月,因腹泻10天,抽搐1天入院。患儿于入院前10天因受凉后流清鼻涕、发热伴腹泻。自服感冒退热药物(含 Aspirin)后热退,但仍腹泻。入院前2天出现阵发性哭闹、反复呕吐胃内容物。入院前1天突然双手握拳、抖动伴全身紫绀数分钟。其胞兄在8个月时也因突然发生“急性脑病”而死亡,死因不明。体检:体温36.5℃,呼吸30次/分。急性重病容,神志清楚,前囟平坦,颈软,心肺正常,肝于右肋下 Children, male, 6 months, 10 days due to diarrhea, convulsions 1 day admission. Children admitted to hospital 10 days after the cold due to cold runny nose, fever with diarrhea. Self-serve cold antipyretics (including Aspirin) after the heat back, but still diarrhea. 2 days before admission, paroxysmal crying, repeated vomit stomach contents. One day before admission, both hands suddenly fist, shaking with the whole body cyanosis for several minutes. His brother died of an acute encephalopathy at 8 months and had an unknown cause of death. Physical examination: body temperature 36.5 ℃, breathing 30 beats / min. Acute serious illness, conscious, anterior bland flat, soft neck, normal heart and lung, liver in the right rib