Red cell phenotype (to include Rh and K)
| Category | Blood Transfusion |
|---|---|
| Test background |
When an antibody has been identified, the patient's red cells should be phenotyped using a reagent of the same specificity as the assigned specificity. The patient's red cells, as determined during phenotyping, will normally be expected to lack the antigen(s) corresponding to the antibody specificity (specificities) assigned. Once established, this information can be used to select donor red cells that would not initiate a transfusion reaction. |
| Clinical Indications |
To establish the Rh and K red cell phenotype prior to transfusion or in pregnancy. |
| Reference range | Contact the laboratory for further information. |
| Sample & container required | EDTA (lavender top) |
| Sample volume | 4 mL for paediatrics 6 mL for adults |
| Turnaround time | Dependent on clinical requirement. Contact the laboratory to discuss further. |
| Notes | May be referred to the NHS Blood and Transplant service for confirmation if necessary. |