The preconditioning mode of 5 mg dexamethasone into 500 ml 0.9% normal saline could reduce occurrence of FUS, but not increase the risk of hemorrhage.

• 血液透析病人第 1次透析或更换不同类型透析器时使用地塞米松 5mg加入 0 .；9%25氯化钠注射液 5 0 0ml中循管 10min的预处理方式能减少FUS的发生；且不增加出血风险。