Solid Phase Assays
In addition to HLA high resolution typing, patients are screened for preformed anti-HLA antibodies; the detection of anti-HLA antibodies directed to possible mismatches in less ideal donors is related with delay in the platelets and neutrophil engraftment and even with graft rejection. Panel reactivity antibody (PRA) indicates the degree of reactivity of tested serum in terms of percent of positive reactions when tested against a panel of known HLA phenotypes.
For positive results, the report will define the detected HLA antibody specificities. For negative results, 0% PRA will be reported.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Days Test Performed
Monday - Friday, 8:00am - 4:30pm
Soft Order Code
Allogenic Bone Marrow Transplant
HLA Antibody Screen Mixed
HLA Antibody Screening Class I & II
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The Class I & II screening assay is performed first and detects the presence/absence of HLA antibodies. If the screening assay is positive, a high specificity and sensitivity single HLA Antigen assay will be performed to identify the specificity of the anti-HLA antibody present in the serum sample from the recipient. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated.