A 15-year-old female is diagnosed with restrictive lung disease caused by fibrosis. Which of the following is expected?
A) Increased residual volume
B) Increased tidal volume
C) Decreased respiratory rate
D) Decreased functional residual capacity

Question

Quizplus · Accepted Answer

Restrictive lung disease caused by fibrosis results in decreased lung compliance and decreased lung volume. This leads to a decreased functional residual capacity (FRC), which is the volume of air remaining in the lungs at the end of a normal exhalation. Increased residual volume (A) and tidal volume (B) are typically seen in obstructive lung diseases, not restrictive. A decreased respiratory rate (C) would not be expected as the body will attempt to compensate for reduced oxygenation by increasing respiratory rate.

A 15-Year-Old Female Is Diagnosed with Restrictive Lung Disease Caused