Question

19. Which of the following lung volumes or capacities can be measured by spirometry?
A. Functional residual capacity (FRC)
B. Physiologic dead space
C. Residual volume (RV)
D. Vital capacity (VC)

Answer 1

Answer:

Measurement of FRC

Function Residual Capacity(FRC)

It is the amount of air remaining in the lungs at the end of a normal exhalation. It is calculated by adding together residual and expiratory reserve volumes. The normal value is about 1800 – 2200 mL. FRC = RV+ERV.