<Table> <Tr> <Td> </Td> <Td> This article is an orphan, as no other articles link to it . Please introduce links to this page from related articles; try the Find link tool for suggestions . (February 2017) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article is an orphan, as no other articles link to it . Please introduce links to this page from related articles; try the Find link tool for suggestions . (February 2017) </Td> </Tr> <P> In transfusion medicine, mixed - field agglutination refers to mixed reactions during cell typing where two distinct cell populations are present: agglutinated cells admixed with many unagglutinated cells . The presence of two or more cell populations is known as chimerism . Mixed - field agglutination is an important cause of ABO typing and genotype discrepancies . The cause of mixed field agglutinations should be sought prior to setting up blood for transfusion . </P> <P> By far the most common cause of mixed - field agglutination is false chimerism . There are several causes of false chimerism; </P>

Mixed field agglutination encountered in abo forward grouping may be caused by