By Age 60, What is the Approximate Value for the RV/TLC

Question

By age 60, what is the approximate value for the RV/TLC ratio?
A) 20%
B) 35%
C) 65%
D) 50%

Accepted Answer

The RV/TLC ratio, which represents the residual volume to total lung capacity ratio, increases with age due to changes in lung structure and function. By age 60, this ratio is approximately 35%.