Which condition refers to the obstruction of blood flow in the arteries or veins outside the chest?

The condition that refers to the obstruction of blood flow in the arteries or veins outside the chest is peripheral vascular disease. This condition primarily affects the blood vessels that supply the arms and legs, leading to reduced blood flow and resulting in symptoms such as pain, cramping, and ulcers.

Peripheral vascular disease is caused by atherosclerosis, where fatty deposits build up on the artery walls, causing narrowing or blockage. This condition is distinct from coronary artery disease, which specifically affects the blood vessels supplying the heart itself. Cerebrovascular accident, commonly known as a stroke, involves interruption of blood flow to the brain, and congestive heart failure is a condition where the heart is unable to pump effectively, leading to fluid buildup and other systemic effects. Each of these conditions is characterized by different mechanisms and areas of impact, making peripheral vascular disease the appropriate choice for obstruction outside the chest.