Total Lung Capacity
| Definition: |
The volume of air contained in the lungs at the end of a maximal inspiration. It is the equivalent to each of the following sums: VITAL CAPACITY plus RESIDUAL VOLUME; INSPIRATORY CAPACITY plus FUNCTIONAL RESIDUAL CAPACITY; TIDAL VOLUME plus INSPIRATORY RESERVE VOLUME plus functional residual capacity; or tidal volume plus inspiratory reserve volume plus EXPIRATORY RESERVE VOLUME plus residual volume. |
| Notes: |
usually NIM; DF: TOTAL LUNG CAPAC |
Total Lung Capacity Categories.
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Closing Volume - The lung volume at which the dependent lung zones cease to ventilate presumably as a result of airway closure. |
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Functional Residual Capacity - The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC. |
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Vital Capacity - The volume of air that is exhaled by a maximal expiration following a maximal inspiration. |
Total Lung Capacity Definitions and Terms
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