Question

The total Lung Capacity (TLC) is the total volume of air accomodated in the lungs at the end of a forced inspiration. This includes:

(1) RV (Residual Volume); ERV (Expiratory Reserve Volume); TV (Tidal Volume); and IRV (Inspiratory Reserve Volume)

(2) RV; IC (Inspiratory Capacity); EC (Expiratory Capacity); and ERV

(3) RV; ERV; IC and EC

(4) RV; ERV; VC (Vital Capacity) and FRC (Functional Residual Capacity)

Answer 1

Answer (1) RV (Residual Volume); ERV (Expiratory Reserve Volume); TV (Tidal Volume); and IRV (Inspiratory Reserve Volume)

Sol. The correct answer is option (1) as, total volume of air accomodated in the lungs at the end of a forced inspiration is called total lung capacity (TLC). It includes RV, ERV, TV and IRV.