Test Overview
Test Methodology

Solid Phase Assays

Test Usage

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.

Reference Range *

For positive PRA 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.

Test Details
Days Set Up
Monday - Friday, 8:00am - 4:30pm
Analytic Time

5 days

Soft Order Code
HLASM
Synonyms
  • HLASM
  • HLA Antibody Screening Class I & II
  • HLA Antibody Screen Mixed
  • HLA REPORT
  • TISSUE TYPING
  • TTYPE
  • PRAUP
  • Updated PRA
Laboratory
Histocompatibility/Immunogenetics
Section
Histocompatibility
Specimen Requirements
Collection

Collect specimen in a red top (preferred) or SST tube. Send intact specimen at room temperature. Do not refrigerate or freeze.

Yellow Top Tube
Normal Volume
5 mL serum
Minimum Volume
3 mL serum
Additional Information

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.

Billing
Fee Code
37943
Reflex CPT
86832, 86833
Reflex Fee Code
37962, 37963
Resources