A 40-year-old individual with a history of heavy smoking undergoes a lung function test. Which parameter is most likely to be reduced in this individual?
Q1. A 40-year-old individual with a history of heavy smoking undergoes a lung function test. Which parameter is most likely to be reduced in this individual?
Answer: Diffusing Capacity of the Lung for Carbon Monoxide (DLCO)
Explanation: Smoking damages lung tissue, impairing gas exchange and reducing DLCO, which measures the lung's ability to diffuse gases.