ARUP's Laboratory Test Directory

Blood Group (9 Minor Antigens) Genotyping by Bead Array : 2004743

Mnemonic: BLD GROUP9

Methodology: Polymerase Chain Reaction/Bead Array
Performed: Varies
Reported: 5-12 days
Specimen Required: Collect: Lavender (EDTA).

Specimen Preparation: Transfer 7 mL whole blood to ARUP Standard Transport Tubes. (Min: 2 mL) Specimen must be labeled with patient's name, date of birth, and the date and time of draw.

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Frozen specimens.

Stability (collection to initiation of testing): Ambient: 72 hours; Refrigerated: 2 weeks; Frozen: Unacceptable
Reference Interval:
By report
Note: This test includes the 9 Minor Blood Groups: RhCE, Duffy, Kell, Kidd, Diego, Dombrock (with Hy and Jo), Colton, MNS, and Cartwright blood groups.

This testing is recommended for the following situations:
1. Recently transfused individuals who have circulating RBCs of donor origin that interfere with the typing of self RBCs.
2. Individuals with conditions requiring frequent transfusions (eg, sickle cell disease, beta thalassemia) who develop antibodies to low-immunogenicity antigens that are present on donor RBCs. Although these antigens are usually not typed by standard serology because of their low immunogenicity, they can lead to hemolytic reactions after multiple transfusions.
CPT Code(s): 81479
Cross References: IDCore+ (Blood Group (9 Minor Antigens) Genotyping by Bead Array)