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Tidal volume

Tidal volume (symbol VT or TV) is the volume of air inspired and expired with each breath. It is typically assumed that the volume of air inhaled is equal to the volume of air exhaled such as in the figure on the right. In a healthy, young human adult, tidal volume is approximately 500 ml per inspiration at rest or 7 ml/kg of body mass.

Measurement & Mechanical ventilation

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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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Mechanical ventilation

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Tidal volume

Nodes8
Edges7
Triples39
Avg. degree1.75
Density0.25
Components1

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Tidal volume

Top relations

related to Mechanical ventilation · 9
Tidal volume → Acute, Acute Respiratory Distress Syndrome, ALI, ARDS, Measurement, Similarly, The Cochrane Collaboration, Tidal, Ventilator-induced
related to External links · 7
Tidal volume → American Journal, Are, Critical Care Medicine, May, PMID, Respiratory, Ricard JD
ERV · 1
Tidal volume → Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position
FEFmax · 1
Tidal volume → The maximum instantaneous flow achieved during a FVC maneuver
FEFx · 1
Tidal volume → Forced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled
FEV1 · 1
Tidal volume → Volume that has been exhaled at the end of the first second of forced expiration
FEVt · 1
Tidal volume → Forced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds
FIF · 1
Tidal volume → 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
Tidal volume → Functional residual capacity: the volume in the lungs at the end-expiratory position
FVC · 1
Tidal volume → Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort

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Important terminology

volume tidal air lung ventilation vt lungs capacity rv measured kg symbol tv exhaled maximal expiratory inspiratory maximum flow ml

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Tidal volumeERVExpiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position1.00infobox
Tidal volumeFEFmaxThe maximum instantaneous flow achieved during a FVC maneuver1.00infobox
Tidal volumeFEFxForced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled1.00infobox
Tidal volumeFEV1Volume that has been exhaled at the end of the first second of forced expiration1.00infobox
Tidal volumeFEVtForced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds1.00infobox
Tidal volumeFIFForced 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
Tidal volumeFRCFunctional residual capacity: the volume in the lungs at the end-expiratory position1.00infobox
Tidal volumeFVCForced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort1.00infobox
Tidal volumeICInspiratory capacity: the sum of IRV and TV1.00infobox
Tidal volumeIRVInspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level1.00infobox
Tidal volumeIVCInspiratory vital capacity: the maximum volume of air inhaled from the point of maximum expiration1.00infobox
Tidal volumeMVVMaximal voluntary ventilation: volume of air expired in a specified period during repetitive maximal effort1.00infobox
Tidal volumePEFPeak expiratory flow: The highest forced expiratory flow measured with a peak flow meter1.00infobox
Tidal volumeRVResidual volume: the volume of air remaining in the lungs after a maximal exhalation1.00infobox
Tidal volumeRV/TLC%Residual volume expressed as percent of TLC1.00infobox
Tidal volumeTLCTotal lung capacity: the volume in the lungs at maximal inflation, the sum of VC and RV.1.00infobox
Tidal volumeTVTidal 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
Tidal volumeVAAlveolar gas volume1.00infobox
Tidal volumeVCVital capacity: the volume of air breathed out after the deepest inhalation.1.00infobox
Tidal volumeVLActual volume of the lung including the volume of the conducting airway.1.00infobox
Tidal volumeVTTidal 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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