A hemorrhagic brain attack is characterized by which mechanism?

A hemorrhagic brain attack is characterized by which mechanism?

• A. Blockage of arteries with reduced blood flow
• B. Blood leaks onto brain tissue causing an inflammatory response, swelling, and cerebral edema with increased intracranial pressure
• C. Infection of the meninges
• D. Formation of clots that block venous drainage

Answer: (B)

Hemorrhagic stroke happens when a cerebral blood vessel ruptures and blood leaks into brain tissue or the surrounding spaces. That extravasated blood irritates the brain, triggering inflammation and swelling (edema). The swelling raises intracranial pressure, which can compress brain tissue and push it toward areas that can cause severe symptoms or herniation. This bleeding-based mechanism is distinct from an ischemic stroke, which results from a blockage that reduces blood flow without bleeding; meningitis involves infection of the meninges; and a venous blockage causes a different type of brain injury.

Hemorrhagic stroke happens when a cerebral blood vessel ruptures and blood leaks into brain tissue or the surrounding spaces. That extravasated blood irritates the brain, triggering inflammation and swelling (edema). The swelling raises intracranial pressure, which can compress brain tissue and push it toward areas that can cause severe symptoms or herniation. This bleeding-based mechanism is distinct from an ischemic stroke, which results from a blockage that reduces blood flow without bleeding; meningitis involves infection of the meninges; and a venous blockage causes a different type of brain injury.