Suppose there is a person whose total lung capacity TLC is 4

Suppose there is a person whose total lung capacity (TLC) is 4.90 L, inspiratory reserve volume (IRV) is 2.75 L, and tidal volume (TV or V_T) is 0.50 L. Calculate this person\'s functional residual capacity (FRC). FRC =

Solution

Functinal residual capacity = Total lungs capacity- (Inspiratory reserve volume +Tidal volume)

FRC=4.9- (2.75+0.5)

FRC= 4.9- 3.25

FRC= 1.65 L Answer