Chapter 19 Testing consideration, Patient History, Mechanisms of disease and Physical Examination Flashcards
What is Transient Ischemia (TIA)
Fleeting neurologic dysfunction without lasting effects.
symptoms do not last more than 24 hours.
What is often the source of Transient Ischemia
Heart or carotid artery
What is reversible ischemic neurologic defecit? (RIND)
Brain tissue is damaged but recovers completely
Deficit takes longer than 24 hours to resolve.
Stroke
Produces a permanent neurologic deficit.
Stroke in evolution
Symptoms come and go; considered unstable
Completed stroke
No progression of resolution of the symptoms; considered stable.
Ischemia
Lack of blood due to stenosis or occlusion
Lacunar Infarction
Small loss of brain tissue
Occlusion of a small penetrating artery in the brain.
Hemorrhage
Ruptured aneurysm
Stenosis
abnormal narrowing of a vessel
Fatty Streak
Thin layer of hypoechoic lipid material on the intimal layer
Fibrous plaque
Accumulation of lipids covered by more lipid material, collagen and elastic fiber deposits
Complicated lesion
Fibrous plaque containing fibrous tissue, more collagen, calcium and cellular debris.
Fleeting neurologic symptoms that is known to cause bilateral visual blurring is consistent with
Vertebrobasilar Insufficiency (VBI)
What distinguishes a CVA from a TIA, RIND, and VBI?
A CVA consist of a stroke that has caused permanent damage