患者男性,78岁,主因“冠心病、心律失常,阵发房颤”于1998年11月18日入我院治疗。入院时检查血压130/80mmHg,肝肾功能均正常,动态核素检查肾小球滤过率67.8ml/min。入院两周后患者因饮食不当出现腹泻,排水样便5～6次/日,每日排便量达1000ml以上,无发热,腹疼,里急后重感及便中带血。腹泻第四天开始出现纳差,恶心,呕吐不思饮食,尿量减少至 Male patient, 78 years old, mainly due to “coronary heart disease, arrhythmia, paroxysmal atrial fibrillation” in November 18, 1998 into our hospital. On admission, blood pressure was checked at 130 / 80mmHg, liver and kidney function were normal, and dynamic nuclide examination was performed on glomerular filtration rate 67.8ml / min. Two weeks after admission, patients with diarrhea due to improper diet, drainage will be 5 to 6 times / day, the daily amount of defecation above 1000ml, no fever, abdominal pain, tenesmus and blood in the stool. The fourth day of diarrhea began to appear anorexia, nausea, vomiting, not eating, urine output reduced to