Which of the following is not a recognized risk factor for acute DVT?

Arthritis is not considered a recognized risk factor for acute deep vein thrombosis (DVT). The development of DVT is typically associated with various factors that promote clot formation in the veins, such as cancer, which is known to increase the risk of thrombosis due to the effects of tumor-derived substances and treatments that can alter coagulation pathways. Hypercoagulability refers to conditions that increase the propensity for clotting and is a well-established risk factor for DVT. Similarly, trauma can lead to DVT as it may cause damage to blood vessels and initiate the clotting process.

In contrast, while arthritis involves inflammation and pain in the joints, it does not itself influence the coagulation process or directly increase the likelihood of thrombosis in the deep veins. Thus, it does not share the same association with acute DVT as the other listed factors.