What is considered to be the minimum acceptable FEV1/FVC ratio for older adults?
A) 83%
B) 75%
C) 90%
D) 65%

Question

Quizplus · Accepted Answer

The minimum acceptable FEV1/FVC ratio for older adults is generally considered to be 65%. This is because as people age, their lung function naturally declines, and the FEV1/FVC ratio, which measures how much air a person can exhale forcefully in one second relative to the total amount they can exhale, decreases. A ratio below 70% is typically used to diagnose obstructive lung diseases in clinical practice, but for older adults, a lower threshold of 65% is often considered acceptable due to age-related changes in lung function.

What Is Considered to Be the Minimum Acceptable FEV1/FVC Ratio