Excessive fluid in the pleural cavity would be most likely to cause:
A) increased residual volume.
B) decreased vital capacity.
C) increased functional reserve volume.
D) decreased tidal volume.

Question

Quizplus · Accepted Answer

Excessive fluid in the pleural cavity would compress the lung and reduce its ability to expand fully, leading to a decreased vital capacity. A decreased tidal volume is possible but not as likely as a decreased vital capacity. An increased residual volume and functional reserve volume are not directly affected by pleural effusion.

Excessive Fluid in the Pleural Cavity Would Be Most Likely