Lung Volumes and Capacities · Physiology

Which of the following changes is characteristic of a restrictive lung disease, such as pulmonary fibrosis?

  1. Increased Total Lung Capacity value (TLC)
  2. Decreased Functional Residual Capacity
  3. Increased Residual Volume (RV)
  4. Decreased RV/TLC ratio overall
Show answer and explanation

Correct answer: Decreased Functional Residual Capacity

Restrictive diseases are characterized by stiff lungs that are difficult to expand. This results in a global reduction of all lung volumes and capacities, including TLC, VC, and FRC.

Difficulty: Medium Question 29 of 40

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