Which of the following describes a consequence of decreased lung compliance?

• A. Improved lung expansion
• B. Increased ease of inflation
• C. Higher likelihood of stiffness
• D. Enhanced gas exchange

Answer: (C)

Decreased lung compliance refers to the lungs' reduced ability to expand during inhalation. This condition often leads to increased stiffness in the lungs, making it more difficult for them to inflate effectively. When lungs are stiffer, greater pressure is required to achieve the same degree of expansion compared to healthy, compliant lungs. As a result, individuals with decreased lung compliance may experience a sensation of tightness in the chest and may require more effort to breathe. This heightened rigidity is why a higher likelihood of stiffness is the correct consequence of decreased lung compliance.

In contrast, options such as improved lung expansion, increased ease of inflation, and enhanced gas exchange are related to lung compliance that is intact or favorable, not decreased. Decreased compliance typically negatively impacts these functions rather than improves them.