80737-0
LOINC Code
| LOINC code | 80737-0 | |
|---|---|---|
| name | ||
| description | A patient's "calculated panel reactive antibody" (cPRA) determines the likelihood that a transplant recipient and donor would be incompatible. The cPRA is calculated based on how many and which HLA antibodies the patient has compared to known information about the HLA antigen frequencies from ~1200 donors from 2003-2005.[PMID: 19958328] The more antibodies the patient has and the more common the HLA antigens are in the donor pool, the higher the cPRA. Calculated cPRA is not the same as a patient's percent PRA, which is simply the percentage of a pool of donors (~100) to which a patient had reactive antibodies (see the HLA Ab panel [LOINC: 46993-2]). Note that "panel" is part of the antibody name and a single result is expected. This is not panel term. | |
| status | ACTIVE | |
Fully-Specified Name | ||
| component | Calculated panel reactive antibody | |
| property | RelRto = Relative Ratio | |
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | |
| system | Ser = Serum | |
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | |
| method | Calculated | |
Additional Names | ||
| short name | Ab; Calc; Calculation; cPRA; HLA ANTIGEN; Human Leukocyte Antigen; Pan; Panl; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; Reac; React; Relative ratio; Serum; SR | |
Basic Attributes | ||
| class | HLA | |
| type | 1 Laboratory | |
| order vs. observation | cPRA Ser Calc | |
| formula (readable) | cPRA calculator is available at https://optn.transplant.hrsa.gov/resources/allocation-calculators/cpra-calculator/ | |
| example UCUM units | ratio The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | |
History/Usage | ||
| first released | ||
| last updated | 2.65 | |
| last change type | MIN - change to field other than name | |
| change reason | {ratio} | |
Related Names | ||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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