Genotyping, Red Cell Antigen, Prenatal
Commercial Mail-out Laboratory
5231 RCP
Amniotic Fluid
Collection Medium:
Sterile container
7-15 mL amniotic fluid or cultured amniotic cells (2x106) cells minimum
Turn Around Time:
2 weeks upon receipt at reference laboratory
Reference Range:
By report
Please print, complete, and submit the Molecular Diagnostics Test Requisition from the Blood Center of Wisconsin with the specimen and the A-1a Miscellaneous Request or Epic order.

Prenatal genotyping for Red Blood Cell (RBC) antigens used in studies for hemolytic disease of the newborn (HDN). Prenatal testing can be performed on amniotic fluid.
Allel-specific Polymerase Chain Reaction (PCR)
CPT Code:
Possible antigen tested:
Duffy Antigen Genotyping (Fya and Fyb)
Kidd Antigen Genotyping (Jka and Jkb)
Kell and Cellano Antigen Genotyping (K1 and K2)
Rh C and Rh c Antigen Genotyping
Rh D Antigen Genotyping
Rh E and Rh e Antigen Genotyping
M Antigen Genotyping

If any antigen testing is required, please order using MTEST (LAB3621) with a comment of the antigen required.