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Lung volumes and capacities

Lung volumes and lung capacities are measures of the volume of air in the lungs at different phases of the respiratory cycle.

Measurement, Factors affecting volumes & Values

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Factors affecting volumes

13 related topics

Values

7 related topics

Restrictive and obstructive

1 related topics

Overview

7 related topics

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

ERV
Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position
FEFmax
The maximum instantaneous flow achieved during a FVC maneuver
FEFx
Forced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled
FEV1
Volume that has been exhaled at the end of the first second of forced expiration
FEVt
Forced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds
FIF
Forced inspiratory flow: (Specific measurement of the forced inspiratory curve is denoted by nomenclature analogous to that for the forced expiratory curve. For example, maximum…

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Overview

Factors affecting volumes

Values

Restrictive and obstructive

Advanced semantic analysis

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Map overview Semantic statistics

Lung volumes and capacities

Nodes33
Edges32
Triples24
Avg. degree1.94
Density0.060606
Components1

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Lung volumes and capacities

Top relations

ERV · 1
Lung volumes and capacities → Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position
FEFmax · 1
Lung volumes and capacities → The maximum instantaneous flow achieved during a FVC maneuver
FEFx · 1
Lung volumes and capacities → Forced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled
FEV1 · 1
Lung volumes and capacities → Volume that has been exhaled at the end of the first second of forced expiration
FEVt · 1
Lung volumes and capacities → Forced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds
FIF · 1
Lung volumes and capacities → Forced inspiratory flow: (Specific measurement of the forced inspiratory curve is denoted by nomenclature analogous to that for the forced expiratory curve. For example, maximum…
FRC · 1
Lung volumes and capacities → Functional residual capacity: the volume in the lungs at the end-expiratory position
FVC · 1
Lung volumes and capacities → Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort
IC · 1
Lung volumes and capacities → Inspiratory capacity: the sum of IRV and TV
IRV · 1
Lung volumes and capacities → Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level

Important terminology Word statistics

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Important terminology

volume lung air capacity lungs residual tidal volumes breath also measured expiratory litres vital rv breathing maximal inspiratory maximum altitude

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Lung volumes and capacitiesERVExpiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position1.00infobox
Lung volumes and capacitiesFEFmaxThe maximum instantaneous flow achieved during a FVC maneuver1.00infobox
Lung volumes and capacitiesFEFxForced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled1.00infobox
Lung volumes and capacitiesFEV1Volume that has been exhaled at the end of the first second of forced expiration1.00infobox
Lung volumes and capacitiesFEVtForced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds1.00infobox
Lung volumes and capacitiesFIFForced inspiratory flow: (Specific measurement of the forced inspiratory curve is denoted by nomenclature analogous to that for the forced expiratory curve. For example, maximum…1.00infobox
Lung volumes and capacitiesFRCFunctional residual capacity: the volume in the lungs at the end-expiratory position1.00infobox
Lung volumes and capacitiesFVCForced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort1.00infobox
Lung volumes and capacitiesICInspiratory capacity: the sum of IRV and TV1.00infobox
Lung volumes and capacitiesIRVInspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level1.00infobox
Lung volumes and capacitiesIVCInspiratory vital capacity: the maximum volume of air inhaled from the point of maximum expiration1.00infobox
Lung volumes and capacitiesMVVMaximal voluntary ventilation: volume of air expired in a specified period during repetitive maximal effort1.00infobox
Lung volumes and capacitiesPEFPeak expiratory flow: The highest forced expiratory flow measured with a peak flow meter1.00infobox
Lung volumes and capacitiesRVResidual volume: the volume of air remaining in the lungs after a maximal exhalation1.00infobox
Lung volumes and capacitiesRV/TLC%Residual volume expressed as percent of TLC1.00infobox
Lung volumes and capacitiesTLCTotal lung capacity: the volume in the lungs at maximal inflation, the sum of VC and RV.1.00infobox
Lung volumes and capacitiesTVTidal volume: that volume of air moved into or out of the lungs in 1 breath (TV indicates a subdivision of the lung; when tidal volume is precisely measured, as in gas exchange…1.00infobox
Lung volumes and capacitiesVAAlveolar gas volume1.00infobox
Lung volumes and capacitiesVCVital capacity: the volume of air breathed out after the deepest inhalation.1.00infobox
Lung volumes and capacitiesVLActual volume of the lung including the volume of the conducting airway.1.00infobox
Lung volumes and capacitiesVTTidal volume: that volume of air moved into or out of the lungs during quiet breathing (VT indicates a subdivision of the lung; when tidal volume is precisely measured, as in ga…1.00infobox

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