NUR 211 Perfusion 2
- occurs when there is ischemia or hemorrhage into the brain that results in death of a
brain cells.
Answer Stroke (AKA brain attack or CVA)
- What are modifiable risk factors for stroke?
Answer HTN, heart disease, high cholesterol, smoking, lack of physical exercise, poor diet, excess alcohol consumption, obesity, sleep apnea, metabolic syndrome, & drug abuse
- What are the non-modifiable risk factors for stroke?
Answer Age (risk doubles each decade after 55), gender (more common in men & more women die), ethnicity ( increase incidence in African Americans), heredity/ family hx
- What are the conditions associated with stroke risk?
Answer Atrial fibrillation, cardiac valve abnormalities, diabetes mellitus
- Does a TIA increase the risk of a stroke?
Answer Yes
- What is a TIA?
Answer An episode of neurological dysfunction caused by focal brain, spinal cord, or retinal ischemia, but without acute infarction of the brain.
- How long does symptoms of a TIA last?
Answer Usually last less than an hour 1 / 2
- 1/3 of TIA's will progress to what?
Answer Ischemic stroke
- What is the warning sign for Ischemic strokes?
Answer TIA
- What two strokes are classified as ischemic?
Answer Thrombotic and embolic
- What is a thrombotic stroke?
Answer the process of clot formation (thrombosis) results in a narrowing of the lumen, which blocks the passage of the blood through the artery. (Slower development of symptoms).
- What is a embolic stroke?
Answer an embolus is a blood clot or other debris circulating in the blood. When it reaches an artery in the brain that is too narrow to pass through, it lodges there & blocks the flow of blood. (Rapid development of symptoms).
- What is an hemorrhagic stroke?
Answer A burst blood vessel may allow blood to seep into & damage brain tissues until clotting shuts off the leak.
- What is an ischemic stroke?
Answer results from inadequate blood flow to the brain from partial or complete occlusion of an artery.
- 80% of all strokes are
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