94124-5
ClinicalVentilatory threshold [Volume Rate Content]
Definition
The ventilatory threshold (VT) is the intensity of exercise at which the production of carbon dioxide and consequent increase in ventilation, both of which are related to the production of lactate during exercise, become disproportionately higher than oxygen consumption (VO2). The VT usually occurs at about 60-70% of maximum oxygen consumption. Both VT and maximum VO2 are predictors of mortality in patients with congestive heart failure. [PMID: 21977155] The specific method used to calculate the VT should be reported along with the result.
LOINC 6-Axis Classification
Component
Ventilatory threshold
Property
VRatCnt
Time Aspect
Pt
System
^Patient
Scale Type
Qn
Method Type
N/A
Details
Class
PULM
Order/Observation
Both
Short Name
Ventilatory threshold
Related Names
Frequently Asked Questions
What is LOINC code 94124-5?
LOINC code 94124-5 identifies "Ventilatory threshold [Volume Rate Content]". The ventilatory threshold (VT) is the intensity of exercise at which the production of carbon dioxide and consequent increase in ventilation, both of which are related to the production of lactate during exercise, become disproportionately higher than oxygen consumption (VO2). The VT usually occurs at about 60-70% of maximum oxygen consumption. Both VT and maximum VO2 are predictors of mortality in patients with congestive heart failure. [PMID: 21977155] The specific method used to calculate the VT should be reported along with the result.
What does 94124-5 measure?
This code measures Ventilatory threshold in ^Patient. It belongs to the PULM class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.