What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 5978-2: Plasminogen activator inhibitor 2 Chromogenic method Qn (PPP)

Name: LOINC Code 5978-2: Plasminogen activator inhibitor 2 Chromogenic method Qn (PPP)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

5978-2 is a LOINC code used to identify Plasminogen activator inhibitor 2 Chromogenic method Qn (PPP) in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Plasminogen activator inhibitor 2. It is commonly used with the system or sample type PPP.

Reviewed by HealthAssure Clinical TeamUpdated 25 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Plasminogen activator inhibitor 2. It is commonly used with the system or sample type PPP.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Both
Method: Chromo

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Plasminogen activator inhibitor 2 [Units/volume] in Platelet poor plasma by Chromogenic method
Plasminogen activator inhibitor 2
Arbitrary concentration; Chromogenic assay; COAGULATION; Endothelial cell type PA-I; ENZY; Enzymatic assay; Fast acting PAI; Hematology; Heme; II; Inhib; Inhibit; PAI; PAI 2; PAI2; PA-inhibitor; PA-inhibitor 2; Placental PA-I; Plas; Platelet PAI; Platelet poor plasma; PLG; PLGN; Point in time; Profibrinolysin; QNT; Quan; Quant; Quantitative; Random; t-PA inhibitor; u-PA inhibitor

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Plasminogen activator inhibitor 2 Chromogenic method Qn (PPP) (5978-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Plasminogen activator inhibitor 2 Chromogenic method Qn (PPP)Plasminogen activator inhibitor 2 [Units/volume] in Platelet poor plasma by Chromogenic methodPAI2 PPP Chro-aCncPlasminogen activator inhibitor 2COAGPlasminogen activator inhibitor 2, BloodACnc

Frequently asked questions

Code details

Code5978-2

SystemLOINC

Display namePlasminogen activator inhibitor 2 Chromogenic method Qn (PPP)

DescriptionPlasminogen activator inhibitor 2

Short namePAI2 PPP Chro-aCnc

ComponentPlasminogen activator inhibitor 2

PropertyACnc

TimingPt

System (specimen)PPP

ScaleQn

MethodChromo

ClassCOAG

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0d

Last changed2.69

Consumer names

Plasminogen activator inhibitor 2, Blood

Part names

Plasminogen activator inhibitor 2ACncPtPPPQnChromoArbitrary ConcentrationPoint in time (spot)Platelet poor plasmaChromogenic (Enzyme)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.