Question

Which of the following insults or abnormalities can cause an ischemic stroke?

a) Arteriovenous malformation
b) Intracerebral aneurysm rupture
c) Cocaine use
d) Trauma

Answer 1

Insults or abnormalities that can cause an ischemic stroke include arteriovenous malformation (AVM), intracerebral aneurysm rupture, cocaine use, and trauma.

Step-by-step explanation:

An ischemic stroke occurs when there is a blockage or narrowing of blood vessels, leading to a loss of blood flow to the brain. This blockage is often caused by an embolus, which can be a blood clot or fat deposit. Insults or abnormalities that can cause an ischemic stroke include:

• Arteriovenous malformation (AVM): This is an abnormal tangle of blood vessels that can rupture and cause a blockage in the brain.
• Intracerebral aneurysm rupture: An aneurysm is a weak spot in a blood vessel that can burst and lead to a stroke.
• Cocaine use: Cocaine can constrict blood vessels and increase the risk of blood clots, which can cause a stroke.
• Trauma: Severe head injuries or trauma can disrupt blood flow to the brain and result in a stroke.

It is important to note that these insults or abnormalities are risk factors for ischemic strokes but may not necessarily cause a stroke in every individual.