Spirometry results reveal a vital capacity of two liters which is well below the predicted value of five liters.This suggests which disorder?
A) emphysema
B) asthma
C) restrictive disease
D) obstructive pulmonary disease

Question

Quizplus · Accepted Answer

A vital capacity of well below the predicted value suggests a restrictive lung disease, which is characterized by decreased lung volumes and reduced expansion of the lungs. Emphysema and obstructive pulmonary disease (such as chronic bronchitis or COPD) would typically cause decreased airflow and decreased ability to exhale, leading to a decrease in the forced expiratory volume in one second (FEV1). Asthma is also an obstructive lung disease, but it would typically show reversible airway obstruction and variable breathing difficulty.

Spirometry Results Reveal a Vital Capacity of Two Liters Which