单项选择题
A.营养不良B.年龄C.体重D.糖尿病E.心理衰竭
A.4〜6个月B.6〜8个月C.6〜10个月D.6〜12个月E.12〜16个月
A.尿素下降率(Urea Reduction Rare ,URR)B.时间平均尿素浓度(Time Average Concentration For Urea ,TACure)C.溶质清除指数(Solute Removal Index,SRI)D.蛋白质分解代谢率(Protein Catabolic Rate,PCR)E.尿素生成率(Urea Nitrogen Appearance,UNA )