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Test Code 8115 RHIG Evaluation, Trauma/Miscarriage

Specimen Containers and Fixatives

Lavender Top Tube (EDTA)

Specimen Required

All locations: submit 5.0 mL of blood at room temperature.

Client Special Instructions

Tube must be labeled with full patient name and social security card number, date of specimen collection and the initials of the person who obtained the specimen.

Day(s) and Time(s) Performed

Blood Bank

Daily, 4 hours

Reference Values

ABO

European Americans: 45% Group O, 40% Group A, 11% Group B, 4% Group AB

African Americans: 49% Group O, 27% Group A, 27% Group B, 4% Group AB

Rh: Approximately 15% of Americans are Rh negative

Antibody Screen: Negative

The antibody screen is intended to detect blood group alloantibodies and/or autoantibodies in patient’s serum which may cause a hemolytic transfusion reaction or hemolytic disease of the newborn. When a positive antibody screen is detected as a result of a request for transfusion of RBC-containing components, antibody identification should be completed before blood is issued. If transfusion is urgent, the physician may be required to sign an emergency release form (see Emergency Transfusion). An Antibody Screen is done on plasma or serum; a Direct Antiglobulin (Coombs’) Test is done on red cells.

Method Name

Hemagglutination

CPT Code Information

86900, 86901, 86850