Red Cell Genotyping-common antigens (Kell, Kidd, Duffy, Ss)
| Also Known as (Alias) | red cell genotyping |
| Indications | Red Cell (HEA) Genomics |
| Method | polymerase chain reaction (PCR) based |
| Test Information | Subset of genotyping for the common variants. |
| Sample Requirements | EDTA (lavender top) |
| Requested Volume | 10cc EDTA (lavender top) tube(s) |
| Minimum Volume or Pediatric volume | Minimum Vol: 5ml
Pediatric Minimum Vol: 2ml or 4 EDTA (lavender) microtainers, each containing 0.5ml *Note: For very difficult draws, contact the Genomics Testing Lab at Bloodworks NW at 206-689-6269 for approval of microtainers |
| Shipping Information | Whole blood shipped at ambient temperature and should arrive in the lab within 48 hours.
Send samples to: |
| Requisition Form | Request for Testing: Genomic Testing Laboratory |
| Transaction Code | 3117-11 |
| CPT Codes | 81403 x8 |
| Turn around Time (analytic time) | 3 business days |
| Report/Results | Fax number required to receive report |
| Limitation of test | Molecular testing to predict the red blood cell phenotype does not always reflect the phenotypic expression of the blood group antigen. This may occur in cases where the individual has genetic variation that silences or alters the blood group antigen expression that is not included in the target region of the test, and also may occur with RhD zygosity testing. Test results must be interpreted with knowledge of how known polymorphisms affect blood group antigen expression. The performance characteristics have been established by Bloodworks Northwest. The results are not intended as the sole means for clinical diagnosis for donor or patient management decisions. |