Week 11: CVA/ Stroke Flashcards
CVA there is an ___ or obstruction of the ___ ___ that results from the lack of blood
Infarction
Brain tissue
Irreversible nerve cell damage can occur after ____ minutes of ____
5
Ischemia
Risk factors
HTN
Smoking
DM
Non- modifiable risk factors
Old age
Females
African Americans
Genetics
Modifiable risk factors
HTN Hyperlipidemia Smoking DM Artrial fibrillation- causes embolisms Carotid disease Coagulation disorders Sickle cell disease Obesity/ inactivity Alcohol/ cocaine use
Types of CVA
Thrombus
Embolus
Hemorrhage
Ischemic strokes
Embolic
Thrombus
thrombus stroke
Cause- Atherosclerosis in inter cranial artery (carotid)
Gradual onset- may have TIA
Risk- elderly and those with atherosclerosis
Effects- localized
Embolic stroke
-Caused by a moving blood clot
thrombus that breaks off from one area of the body and
travels to the cerebral arteries via the carotid artery
-usual source of thrombi= the heart
-onset= sudden
-risk= a fib, recent MI, endocarditis
Hemorrhagic stroke
- ruptured aneurysm or blood vessel and bleeding occurs into the brain tissue
- causes a rapid increase in ICP
- predisposing condition= HTN, arteriosclerosis
- onset= rapid, usually with activity
CM of stroke
Lack of voluntary movement, weakness, sensation on the opposite side of the body slurred speech Aphasia Altered LOC Cognitive or affective disorders
Aphasia
Language disorder that affects persons ability to communicate
Right cerebral hemisphere
More involved with visual and spatial awareness
Left cerebral hemisphere
Center for language, math skills, analytic thinking
Expressive motor aphasia
Cannot speak or write fluently
Broca’s area
Left frontal lobe
