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.

LOINCActiveObservation

LOINC Code 94126-0: Ventilatory equivalent for carbon dioxide --W exercise

Name: LOINC Code 94126-0: Ventilatory equivalent for carbon dioxide --W exercise
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:23.055Z

94126-0 is a LOINC code used to identify Ventilatory equivalent for carbon dioxide --W exercise 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 Ventilatory equivalent for carbon dioxide^W exercise. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 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 Ventilatory equivalent for carbon dioxide^W exercise. It is commonly used with the system or sample type ^Patient.

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: Observation

What it does not mean

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

Key facts

Ventilatory equivalent for carbon dioxide --W exercise

Ventilatory equivalent for carbon dioxide^W exercise

The ventilatory equivalent for carbon dioxide (VEqCO2) is the ratio of ventilation to carbon dioxide production at a point in time. It is an alternative measurement to the slope of ventilation to carbon dioxide production as calculated for the duration of exercise. VEqCO2 and time to lowest VEqCO2 may be predictors of mortality in patients with heart failure. [PMID22619715]

Carbonic anhydride; cO2; EXCZ; Point in time; PULMONARY; QNT; Quan; Quant; Quantitative; Random; VEqCO2; Volume ratio

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.

Common synonyms

Ventilatory equivalent for carbon dioxide --W exerciseVEqCO2 W exerciseVentilatory equivalent for carbon dioxide^W exercisePULMVRtoPt^Patient

Frequently asked questions

Code details

Code94126-0

SystemLOINC

Display nameVentilatory equivalent for carbon dioxide --W exercise

DescriptionVentilatory equivalent for carbon dioxide^W exercise

Short nameVEqCO2 W exercise

ComponentVentilatory equivalent for carbon dioxide^W exercise

PropertyVRto

TimingPt

System (specimen)^Patient

ScaleQn

ClassPULM

Example unitsratio

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.67

Last changed2.67

Part names

Ventilatory equivalent for carbon dioxide^W exerciseVRtoPt^PatientQnVolume RatioPoint in time (spot)

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.