Specimen:

Whole Blood

Minimum:

5 - 10 mL lavender top EDTA whole Blood from both mother and father

Analytic Time:

1 week  upon receipt at referral laboratory

Reference Range:

By report

Comments:

Please print, complete, and submit the Molecular Diagnostics Test 
Requisition from the Blood Center of Wisconsin with the specimen and 
A-1a Miscellaneous Request.

Parental genotyping for Red Blood Cell (RBC) antigens used in studies 
for hemolytic disease of the newborn (HDN).  Parental testing is 
performed only on whole blood from the mother and the father.

Methodology:

Allel-specific Polymerase Chain Reaction (PCR)

CPT Code:

Possible CPT codes, based on antigen tested:
Duffy Antigen Genotyping (Fya and Fyb):83891, 83894, 83898(x4), 83912, 
86905(x2)
Kidd Antigen Genotyping (Jka and Jkb):83891, 83894, 83898(x2), 83912, 
86905(x2)
Kell and Cellano Antigen Genotyping (K1 and K2):83891, 83894, 
83898(x2), 83912, 86905(x2)
Rh C and Rh c Antigen Genotyping:83891, 83894, 83898(x2), 
83912,86905(x2)
Rh D Antigen Genotyping:83891, 83894, 83898(x2), 83912, 86901
Rh E and Rh e Antigen Genotyping:83891, 83894, 83898(x2), 83912, 
86905(x2)
M Antigen Genotyping:83891, 83894, 83898, 83912, 86905

See also:
Genotyping, Red Cell Antigen, Prenatal, Whole Blood
RBC Antigen Testing Per Antigen, Blood