In transfusion medicine,<unk>  refers to<unk>  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.<unk>  is an important cause of ABO typing and genotype discrepancies. The cause of<unk> s should be sought prior to setting up blood for transfusion.
Mixed-field agglutination
Strain pattern
Panel-reactive antibody
Jaffe reaction
Broth microdilution
Virtual colony count
Direct agglutination test
Double-disk diffusion test