Sickle Cell Phenotype (Rh & K)
| Also Known as (Alias) | D,C,E,c, e and K antigen typing |
| Indications | Determination of Rh and K antigen phenotype of a sickle cell disease (SCD) patient who is likely to receive multiple red cell transfusions. The results are needed to be able to provide Rh and K matched red cells to prevent the production of antibodies to these antigens and compare against RBC genotyping results to look for blood group variation that impacts transfusion care. |
| Method | Standard test tube methodology, Hemagglutination |
| Test Information | Test dependent on the antigen present |
| Additional Test Information | If the patient has been transfused in the last three months, antigen typing of patient red cells may yield unreliable results due to the presence of donor cells. A pre-transfusion should be used for antigen typing, if available. Sample will be referred to red cell genotyping for other blood group antigens. RBC genotyping can provide this information in recently transfused recipients. |
| Sample Requirements | EDTA tube, serum separator gel tube is not acceptable. |
| Requested Volume | 1 full 7 ml EDTA sample |
| Minimum Volume or Pediatric volume | Minimum volume: 1 full 7 ml EDTA sample Pediatric: 1 full 3 ml EDTA sample; neonate: 2 full 0.5 ml EDTA microtainers |
| Shipping Information | Ship at ambient temperature
Send samples to: |
| Requisition Form | RFT-Request for Testing Transfusion Services |
| Transaction Code | 3117-00, 3118-00 |
| CPT Codes | 86905, 86906 |
| Test Schedule | Monday through Sunday |
| Turn around Time (analytic time) | 24 hours if weekday; 48 hours if weekend |
| Report/ Results | Fax number required to receive report |