Establishment of internal quality control methodology for blood transfusion compatibility testing
10.13303/j.cjbt.issn.1004-549x.2024.04.005
- VernacularTitle:自制输血相容性检测低值阳性质控品的方法学建立
- Author:
Lu LI
1
;
Xiaolin SUN
1
;
Junjie WEI
1
;
Ruiqi LIU
1
;
Weixin WU
1
;
Haiyun LIU
1
;
Yinze ZHANG
1
Author Information
1. Shenzhen University General Hospital, Shenzhen 518000, China
- Publication Type:Journal Article
- Keywords:
quality control products;
transfusion compatibility testing;
weakly positive;
dose effect;
Rh phenotype frequency
- From:
Chinese Journal of Blood Transfusion
2024;37(4):399-404
- CountryChina
- Language:Chinese
-
Abstract:
【Objective】 To monitor the effectiveness and accuracy of the blood transfusion compatibility test system by self-made weakly positive internal quality control products. 【Methods】 Red blood cells from DAT(-) healthy subjects were selected, and B/RhD(-)E(-) red blood cells were selected as tube 1. A/RhD(+ )E(+ ) was selected as tube 2 to prepare blood group quality control products according to the principle of blood group antigen compatibility, and red blood cell preservation solution and corresponding ABO blood group reagent antibody were added to make the agglutination intensity of microcolumn gel method in reverse blood typing reach a low positive value (1+ ). Tube 3 and tube 4 were prepared with five different preservation media: plasma, serum, antibody diluent, mixture of equal plasma and antibody diluent, and mixture of equal serum and antibody diluent, respectively. IgM anti-E antibody was added to tube 3, and IgG anti-D antibody was added to tube 4, so that the agglutination intensity of microcolumn gel method reached a low positive value (1+ ). 【Results】 Comparison between the 5 different preservation media showed that the preservation medium of antibody diluent was the most stable for weakly positive antibody (F=11.35, P<0.05), Agglutination intensity 1+ is assigned 5 points by AABB Technical Manual, and its score was 5.25±1.75 points. 【Conclusion】 The use of self-made weakly positive quality control products can improve the effectiveness, accuracy and sensitivity of the monitoring system, thus achieving internal quality control and ensuring the safety of clinical blood use.
