Which of the following are contributing factors to DVT according to the material?

• A. Recent activity and high fluid intake.
• B. Recent inactivity and reduced fluid intake.
• C. Adequate hydration and mobility.
• D. Regular exercise and hydration.

Answer: (B)

Risk for DVT rises when venous blood flow slows and the blood becomes more concentrated, promoting clot formation. Inactivity leads to venous stasis, especially in the legs, giving clotting factors time to accumulate. Reduced fluid intake concentrates the blood and increases viscosity, making clot formation more likely. Together, recent inactivity and dehydration create conditions that favor a DVT.

Protective factors like recent activity with adequate hydration help keep blood moving and less viscous, reducing the risk. So options describing activity and proper hydration are not contributing factors.