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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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volume tidal air lung ventilation vt lungs capacity rv measured kg symbol tv exhaled maximal expiratory inspiratory maximum flow ml
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Tidal volume | ERV | Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position | 1.00 | infobox |
| Tidal volume | FEFmax | The maximum instantaneous flow achieved during a FVC maneuver | 1.00 | infobox |
| Tidal volume | FEFx | Forced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled | 1.00 | infobox |
| Tidal volume | FEV1 | Volume that has been exhaled at the end of the first second of forced expiration | 1.00 | infobox |
| Tidal volume | FEVt | Forced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first t seconds | 1.00 | infobox |
| Tidal volume | 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… | 1.00 | infobox |
| Tidal volume | FRC | Functional residual capacity: the volume in the lungs at the end-expiratory position | 1.00 | infobox |
| Tidal volume | FVC | Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort | 1.00 | infobox |
| Tidal volume | IC | Inspiratory capacity: the sum of IRV and TV | 1.00 | infobox |
| Tidal volume | IRV | Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level | 1.00 | infobox |
| Tidal volume | IVC | Inspiratory vital capacity: the maximum volume of air inhaled from the point of maximum expiration | 1.00 | infobox |
| Tidal volume | MVV | Maximal voluntary ventilation: volume of air expired in a specified period during repetitive maximal effort | 1.00 | infobox |
| Tidal volume | PEF | Peak expiratory flow: The highest forced expiratory flow measured with a peak flow meter | 1.00 | infobox |
| Tidal volume | RV | Residual volume: the volume of air remaining in the lungs after a maximal exhalation | 1.00 | infobox |
| Tidal volume | RV/TLC% | Residual volume expressed as percent of TLC | 1.00 | infobox |
| Tidal volume | TLC | Total lung capacity: the volume in the lungs at maximal inflation, the sum of VC and RV. | 1.00 | infobox |
| Tidal volume | TV | Tidal 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… | 1.00 | infobox |
| Tidal volume | VA | Alveolar gas volume | 1.00 | infobox |
| Tidal volume | VC | Vital capacity: the volume of air breathed out after the deepest inhalation. | 1.00 | infobox |
| Tidal volume | VL | Actual volume of the lung including the volume of the conducting airway. | 1.00 | infobox |
| Tidal volume | VT | Tidal 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… | 1.00 | infobox |
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