LOINC
Version 2.67

52129-4INR in Platelet poor plasma by Coagulation assay --post heparin neutralizationActive

Term Description

Heparin contamination from plasma of patients on heparin therapy or from plasma transported in a heparin based anticoagulation tube is removed before testing.
Source: Regenstrief LOINC

Part Descriptions

LP17102-2   Coagulation tissue factor induced.INR
The INR is specifically intented for evaluating protime results on patients stabilized on long term oral anticoagulant therapy. The INR is not appropriate to evalulate hemostatic function in patients with liver disease, for screening for hereditary factor deficiencies or acquired vitamin K deficiencies, or for routine preoperative screening; this should be evaluated on the normal range in seconds. INR is calculated by the equation, INR = (PTR) raised to the power of ISI, where ISI = International Sensitivity Index (assigned to each reagent thromboplastin). PTR = prothrombin time ratio (pat PT/pop mean PT). Computation of the INR of specific thromboplastin reagent should allow for uniformity in prothrombin time testing regardless of the reagent system or instrumentation used. Source: Regenstrief Institute

LP411053-4   post heparin neutralization
The "post heparin neutralization" challenge in LOINC includes a variety of methods to remove the effect of heparin from a sample before testing. These methods include the addition of heparinase, an enzyme that breaks down heparin, and heparin adsorption, in which a substance is added that binds the heparin that is present. Source: Regenstrief LOINC

Fully-Specified Name

Component
Coagulation tissue factor induced.INR^post heparin neutralization
Property
RelTime
Time
Pt
System
PPP
Scale
Qn
Method
Coag

Additional Names

Short Name
INR p hep neut PPP
Display Name
INR post heparin neutralization Coag (PPP) [Relative time]

Basic Attributes

Class
COAG
Type
Laboratory
First Released
Version 2.24
Last Updated
Version 2.67
Change Reason
Release 2.67: COMPONENT: Updated Challenge so that term can be used for assays that use different heparin neutralization methods, including adsorption and heparinase.
Order vs. Observation
Observation

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright © 2001-2019 American Association for Clinical Chemistry Prothrombin Time and International Normalized Ratio (PT/INR)

Language Variants Get Info

fr-FRFrench (FRANCE)
Coagulation tissue factor induced.INR^post heparin adsorption:RelTime:Pt:PPP:Qn:Coag
pt-BRPortuguese (BRAZIL)
Protrombina.RNI^após absorção de heparina:RelTime:Pt:PPPQ:Qn:Coagulação

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=52129-4