Blood Bank

Test Name	Used For	Specimen Type	Container/Tube	Report Availability	Specimen Retention Time
CrossMatch	A crossmatch is performed prior to administration of blood or blood products (e.g. packed red blood cells). The purpose of the crossmatch is to detect the presence of antibodies in the recipient against the red blood cells of the donor. These antibodies attach to the red blood cells of the donor after transfusion.	plasma/ serum	Purple top (EDTA) yellow top	1 Hrs	7 days
Coombs Test Indirects	The indirect Coombs test looks for antibodies that are floating in the blood. These antibodies could act against certain red blood cells. This test is most often done to determine if you may have a reaction to a blood transfusion.	Serum /plasma	Yellow Top / Red Top/ purple top EDTA	Apprx. 2 Hrs / same day	7 days
Coombs Test Directs	Demonstrating in vivo coating of red blood cells with IgG or the complement component C3d	Plasma	Purple top (EDTA)	Apprx. 2 Hrs / same day	7 days
Rh Antibodies Titer	Monitoring antibody levels during pregnancy to help assess the risk of hemolytic disease of the newborn	Serum/plasma	Yellow top or Red Top / puple top EDTA	Apprx. 2 Hrs / same day	7 days
Blood Group	Determining blood group ABO and Rh only	Whole Blood EDTA	Purple top	Apprx. 2 Hrs / same day	7 days