Ventilatory threshold [Volume Rate Content] 94124-5
LOINC Code
LOINC code | 94124-5 | ||
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name | Ventilatory threshold [Volume Rate Content] | ||
description | 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. | ||
status | ACTIVE | ||
Fully-Specified Name | |||
component | Ventilatory threshold | ||
property | VRatCnt = Volume Rate Content | ||
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 | ^Patient | ||
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 | |||
Additional Names | |||
short name | Ventilatory threshold | ||
Basic Attributes | |||
class | PULM | ||
type | 2 Clinical | ||
order vs. observation | Both | ||
example UCUM units | mL/min/kg{body_wt} 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) | ||
example unit | mL/min/kg bw | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
first released | |||
last updated | 2.67 | ||
last change type | ADD - added | ||
Related Names | |||
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