The application and analysis of nucleic acid detection in Zhengzhou voluntary blood donors / 国际检验医学杂志

ABSTRACT

Objective To discuss the necessity and feasibility of nucleic acid test(NAT)in clinical blood transfusion by the im-plementation of the nucleic acid testing after the ELISA screening of Zhengzhou blood donors.Methods HBV DNA,HCV RNA, HIV RNA were detected by Roche Cobas S201 system and Shanghai kehua screening system,the samples were mixed by 6×166.7μL and 8×180 μL(as one pool)separately.If the mix pool was negative,the result can be issued directly;if the pool was positive, than secondary single sample dectection must be taken and the secondary report was the final result.Results A total of 115 227 blood samples were screened by Roche Cobas S201 system and 130 mix pools were positive,among which 80 pools were reactive by secondary split testing,and the reactive samples were 86,the split ratio was 61.5%,The positive ratio of specimens was 0.75‰.90 359 samples were screened by kehua system,and the mixed pools were 93,among which 31 pools were reactive by secondary split testing,and the reactive samples were 31,the split ratio was 33.4%,The positive ratio of specimens was 0.34‰.So the total num-ber screened by the two systems was 205 586,among which 117 cases were reactive,the total positive ratio of specimens was 0.57‰.And one case was HIV window phase infection.Conclusion NAT could effectively decrease the risk of blood transfusion caused by omission of ELISA and ensure the safety of blood transfusion.