What does NOT characterize a hemorrhagic stroke?

A hemorrhagic stroke occurs when a blood vessel in the brain ruptures, leading to bleeding in or around the brain. The defining characteristic of this type of stroke is the burst arterial walls, which result in the immediate symptoms associated with bleeding and the subsequent pressure on brain tissue. Because this involves an arterial rupture, it is crucial to recognize that the flow of blood is not impeded by blockage like it would be in an ischemic stroke; rather, the issue involves compromised blood vessels leading to a leak of blood.

Possible brain swelling is also a complication of hemorrhagic strokes, as the accumulation of blood can cause inflammation and increased intracranial pressure, further complicating recovery. High blood pressure is a significant risk factor for hemorrhagic strokes, as it can weaken the walls of blood vessels over time, making them more prone to rupture.

In contrast to these classifications, a blocked artery is not a characteristic of hemorrhagic stroke, as that situation typically describes an ischemic stroke where blood flow is obstructed due to a clot or plaque buildup. Therefore, this option accurately identifies something that does not characterize a hemorrhagic stroke.