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1、一例58岁男性患者,因冠心病行冠状动脉搭桥术。术前肾功能正常,术后如发生急性肾功能衰竭,下列哪项是诊断最可靠的指征? A、排尿量减少。B、血中尿素氮突然增高。C、尿钠高于20mEq/L。D、血浆肌酐浓度突然增高。E、高钾血症。2、一例35岁肾病综合征女性患者,因呼吸急促和右侧胸痛到急诊室。胸部X线检查发现右肺下叶浸润和少量胸膜渗出;心电图示窦性心动过速;血气分析PaO_270mmHg,PaCO_230mmHg;尿
1, a 58-year-old male patient undergoing coronary artery bypass surgery due to coronary heart disease. Preoperative renal function is normal, postoperative acute renal failure occurs, which of the following is the diagnosis of the most reliable indications? A, decreased urinary output. B, blood urea nitrogen suddenly increased. C, urinary sodium higher than 20mEq / L. D, a sudden increase in plasma creatinine concentration. E, hyperkalemia. 2, a 35-year-old female with nephrotic syndrome due to shortness of breath and right chest pain to the emergency room. Chest X-ray examination found infiltration of the right lung and a small amount of pleural effusion; ECG showed sinus tachycardia; blood gas analysis PaO_270mmHg, PaCO_230mmHg; urine