Gaceta medica de Mexico · 2018
[Frequency of subgroups of the antigen “a” among volunteer donors].
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод в очереди
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Parra-Jaramillo Katherine, Chiriboga-Ponce Rosa F
Аннотация
INTRODUCTION: The presence of weak variants of blood type A represents a challenge in the practice of immunohematology for discrepancies in the time of the classification. It is common in blood banks to perform a forward and reverse typing for the purpose of confirming the blood type, but not all the people with a subgroup A2 have developed anti-A1 antibodies.
OBJECTIVE: We present a descriptive, observational and transversal study that establishes the proportion of subgroups of A antigen with the analysis of manual tube technique and monoclonal antibodies like anti-A, anti-A1 (Dolichus biflorus lectins extract) and anti-H.
METHODS: The analysis involved a total of 818 samples of voluntary blood donor, selected by random sampling, which were initially classified as 737 of Type A, and 81 as Type AB, with a confidence level of 95% (alpha error of 5% and 3% of precision).
RESULTS: The present study evaluated the existence of the subgroups A1, A2, A1B, A2B, A intermediate and A intB.
CONCLUSIONS: It is recommended the identification of subgroups in different types of blood in the laboratory and blood banks.
OBJECTIVE: We present a descriptive, observational and transversal study that establishes the proportion of subgroups of A antigen with the analysis of manual tube technique and monoclonal antibodies like anti-A, anti-A1 (Dolichus biflorus lectins extract) and anti-H.
METHODS: The analysis involved a total of 818 samples of voluntary blood donor, selected by random sampling, which were initially classified as 737 of Type A, and 81 as Type AB, with a confidence level of 95% (alpha error of 5% and 3% of precision).
RESULTS: The present study evaluated the existence of the subgroups A1, A2, A1B, A2B, A intermediate and A intB.
CONCLUSIONS: It is recommended the identification of subgroups in different types of blood in the laboratory and blood banks.