Which of the following is a consequence of increased vein wall permeability due to inflammation?

Increased vein wall permeability due to inflammation leads to enhanced fluid leakage from the veins. When the vascular walls become more permeable, it allows proteins and fluids, such as plasma, to seep through the vessel wall into the surrounding tissues. This process is often part of the inflammatory response, where the body attempts to repair damage and facilitate healing.

The leakage of fluid can result in localized swelling, redness, and warmth in the affected area because the excess fluid accumulates outside the vessels. This is a common response to inflammation that can lead to conditions like edema.

While increased permeability can contribute to other complications, such as a risk of thrombosis in the long term, the primary and immediate consequence of increased permeability is the leakage of fluid. Thus, the answer regarding fluid leakage accurately captures the immediate effect of inflammation on vein wall properties.