What factor increases the risk of a pulmonary embolus in older adults?

Increased immobility is a significant factor that raises the risk of a pulmonary embolism, particularly in older adults. As people age, they tend to be less active, which can lead to a sedentary lifestyle. Prolonged immobility, such as long periods of sitting or lying down—common in elderly populations due to various physical limitations or health issues—can lead to the formation of blood clots in the deep veins of the legs, known as deep vein thrombosis (DVT). When a clot breaks free from the vein and travels to the lungs, it can cause a pulmonary embolism, which can be life-threatening.

Sedentary behavior contributes to the stasis of blood flow in the lower extremities, making clot formation more likely. Therefore, addressing mobility and encouraging regular movement or activity can be crucial in reducing the risk of pulmonary embolism among older adults. Health care providers often prioritize interventions to enhance mobility in this population to help mitigate such risks.