What are the two main types of strokes?

The two main types of strokes are ischemic and hemorrhagic. Ischemic strokes are caused by a blockage in a blood vessel that supplies blood to the brain, often due to a blood clot. This blockage reduces blood flow, which can lead to brain cell death and potentially result in lasting neurological damage. The majority of strokes, approximately 87%, are ischemic in nature.

Hemorrhagic strokes, on the other hand, occur when a blood vessel in the brain ruptures, leading to bleeding in or around the brain. This can create pressure on brain tissues and disrupt normal blood flow, also resulting in damage to brain cells. Hemorrhagic strokes can be caused by conditions such as high blood pressure or aneurysms.

Other types of strokes mentioned in the incorrect choices, such as lacunar strokes, are specific subtypes of ischemic strokes, whereas cerebral and transient strokes refer to broader terms that do not encapsulate the primary classifications established in stroke care. Obstructive is not a standard term used in the classification of strokes; rather, it relates to the mechanism of certain ischemic strokes. Understanding these classifications is critical for effective diagnosis and treatment in emergency medical situations.