Preferred Specimen(s) 3mL whole blood collected in a EDTA (lavender-top) tube or ACD-A or ACD-B (yellow-top) tube. If submitted with a CBC, HbA1c or any other test requiring a EDTA (lavendertop) tube, submit a separate tube for this test.
Transport Container EDTA (lavender-top) tube or ACD-A or ACD-B (yellow-top) tube
Transport Temperature Room temperature, Stable 6 Days
Reject Criteria
- Hemolysis
- Received frozen
- Serum Separator Tube (SST®)
Methodology Immune Agglutination
Clinical Significance ABO type and Rh are needed to identify candidates for Rh immune globulin and to assess the risk of hemolytic disease of the newborn.