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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Respir Med. 2019 Aug 9;156:58–68. doi: 10.1016/j.rmed.2019.08.004

Figure 2. Difference between vital capacities.

Figure 2.

Theoretical time-volume curve for patient with obstruction demonstrating the difference between slow vital capacity (SVC) or forced inspiratory vital capacity (FIVC) and forced vital capacity (FVC) due to dynamic air trapping. Other volumes of note, IC = inspiratory capacity; ERV = expiratory reserve volume; IRV = inspiratory reserve volume; VT = tidal volume.