Conclusions The contamination of dialysis fluid is related with the untimely change of the filter in soft water machine and membrane of reverse osmosis,the contamination of fluid B.

• 结论:血液透析液和透析用水细菌污染与软水机过滤器和反渗膜使用时间过长引起破损,未能及时更换,以及B液配制过程中细菌污染有关。