Once you have measured TV, IRV, and ERV, you can calculate all the following capacities except .

Question

Quizplus · Accepted Answer

Functional residual capacity (FRC) cannot be directly calculated from tidal volume (TV), inspiratory reserve volume (IRV), and expiratory reserve volume (ERV) alone because it also requires the measurement of residual volume (RV), which is the amount of air remaining in the lungs after a maximal exhalation and cannot be measured simply through spirometry without special techniques.

Once You Have Measured TV, IRV, and ERV, You Can