Methods The blood level of BUN was detected,the state of gastrointestinal tract funtion was analyzed according to D2 xylitol absorption test and the blood drug level of FK506.

• 方法检测血BUN、FK506血药浓度及D2木糖醇吸收试验,分析胃肠道功能情况,及时调整免疫抑制药物剂量和胃肠道内、外营养供给。