Question

Which of the following is most likely to occur with an obstructive pulmonary disease (e.g COPD, asthma)?

a) Increased FEV1/FVC ratio
b) Decreased Forced Expiratory Volume in 1 second (FEV1)
c) Increased Total Lung Capacity (TLC)
d) Increased Peak Expiratory Flow (PEF)

Answer 1

Obstructive pulmonary diseases, like COPD and asthma, are most likely to result in a decreased Forced Expiratory Volume in 1 second (FEV1).

Step-by-step explanation:

The most likely occurrence with an obstructive pulmonary disease, such as COPD or asthma, is a decreased Forced Expiratory Volume in 1 second (FEV1). When the airways are obstructed, it becomes more difficult for individuals to fully exhale, resulting in a decrease in their FEV1 measurement. This is because the obstruction limits the amount of air that can be forcibly exhaled in one second after taking a deep breath.