患者,男性,农民。于1990年8月15日无任何诱因出现腹泻,泻出物为黄色水样便,每天4—5次或10余次不等,无里急后重感,大便外观无脓血,病中呕吐两次,均为胃内容物,伴口渴、头晕、心慌,但不发热。体检:脉率108次/min,血压7.8/4.9kPa,脱水貌,皮肤弹性差,四肢末端发凉;心率108次/min,心律不齐,肝脾未触及;下腹部压痛,以右侧为甚,无反跳痛,肠呜音亢进。粪便常规检查:脓细胞 Patient, male, farmer. On August 15, 1990 without any incentive causes diarrhea, diarrhea, yellow watery stool will be, 4-5 times a day or more than 10 times, no tenesmus, no stool appearance of blood, the disease vomiting twice, All stomach contents, with thirst, dizziness, palpitation, but not fever. Physical examination: pulse rate 108 beats / min, blood pressure 7.8 / 4.9kPa, dehydration, poor skin elasticity, extremities cold; heart rate 108 beats / min, arrhythmia, liver and spleen not touched; Very, no rebound pain, bowel sounds hyperthyroidism. Stool routine examination: pus