<unk>  (also known as<unk> , antiglobulin test or AGT) refers to two clinical blood tests used in immunohematology and immunology.
The two<unk> s are:
Direct<unk>  (also known as direct antiglobulin test or DAT).
Indirect<unk>  (also known as indirect antiglobulin test or IAT).
The direct<unk>  is used to detect red blood cells sensitized with igG alloantibody, IgG autoantibody, and complement proteins. It detects antibodies bound to the surface of red blood cells in vivo. The red blood cells (RBCs) are washed (removing the patient's own plasma) and then incubated with antihuman globulin (also known as<unk>  reagent"). If this produces agglutination of the RBCs, the direct<unk>  is positive.
The indirect<unk>  is used in prenatal testing of pregnant women, and in testing blood prior to a blood transfusion. It detects antibodies against RBCs that are present unbound in the patient's serum. In this case, serum is extracted from the blood, and the serum is incubated with RBCs of known antigenicity. If agglutination occurs, the indirect<unk>  is positive.
Coombs test
Reticulocyte index
Hemophilia x ray
Liver scratch test
Latex fixation test
Partial thromboplastin time
Activated clotting time
Thalassemia x ray