Lymphology Association of North America (LANA) Practice Exam

What is one consequence of increased capillary permeability?

1. Decreased risk of infection

2. Reduced edema formation

3. Increased fluid retention in interstitial space

4. Improved lymphatic drainage

The correct answer is: Increased fluid retention in interstitial space

Increased capillary permeability allows for a greater exchange of fluids and proteins between the bloodstream and the interstitial space. This heightened permeability means that more fluid can leak out of the capillaries and accumulate in the surrounding tissues, leading to a condition known as edema. As fluid moves into the interstitial space, it can result in swelling, which is a direct consequence of this process. This phenomenon is often seen in various inflammatory responses or injuries, where the body increases the permeability of capillaries to allow immune cells and proteins to reach affected areas more easily. Thus, the consequence of increased capillary permeability is a notable increase in fluid retention in the interstitial space, leading to swelling or edema, making this answer accurate within the context provided.