Which of the following is a common risk factor for deep vein thrombosis (DVT)?

Prolonged immobilization is a well-documented common risk factor for deep vein thrombosis (DVT). When a person remains immobile for an extended period, such as during long flights, bed rest after surgery, or periods of illness, the blood flow in the veins decreases significantly. This sluggish blood flow can lead to the formation of clots in the deep veins, particularly in the legs.

The risk is heightened if there are additional factors such as obesity, smoking, or a history of DVT, but immobilization itself is a key contributor. Understanding this mechanism is vital for clinical practice, especially in managing patients who are at a heightened risk of developing DVT due to surgical procedures or prolonged hospital stays.

Effective interventions often focus on encouraging movement or the use of pneumatic compression devices to promote circulation in individuals at risk. Other options, while they may be important for various health considerations, do not have the same direct link to the development of DVT as prolonged immobilization does.