In the table below, identify which of the following lung capacities cannot be determined through spirometry alone due to the presence of non-measurable components: Lung Capacity Description Functional Residual Capacity (FRC) Consists of RV and ERV Inspiratory Capacity (IC) Includes TV and IRV Total Lung Capacity (TLC) Sum of all lung volumes Vital Capacity (VC) Maximum air exhaled after maximum inhalation

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Functional Residual Capacity (FRC). Functional Residual Capacity (FRC) includes the Residual Volume (RV), which cannot be directly measured using spirometry. Inspiratory Capacity (IC), Total Lung Capacity (TLC), and Vital Capacity (VC) can be directly or indirectly measured using spirometry.

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