Medicine – MCQ 20 – A patient presents with decreased vital capacity and total lung volume

A patient presents with decreased vital capacity and total lung volume. What is the most probable diagnosis?
A. Bronchiectasis
B. Sarcoidosis
C. Cystic fibrosis
D. Asthma

Answer : B. Sarcoidosis

A restrictive lung disease causes decrease in vital capacity and total lung volume. Among the options provided, sarcoidosis is the only one causing a restrictive lung disease.