complete solutions
an acute CNS injury that results in neurologic S&S brought on by a reduction or absence of
perfusion to a territory of the brain. - correct answer ✔✔ Acute Vascular Accident
CVA disruption in flow is from either:
-Rupture=__________________
-Occlusion= ____________________ - correct answer ✔✔ hemorrhage stroke
ischemic stroke
This lobe of the brain controls:
movement
thinking
judgement
emotional behavior
memory
speech - correct answer ✔✔ frontal
this lobe of the brain controls:
Knowing right from left
sensation
reading
understanding spacial relationships - correct answer ✔✔ parietal
,this lobe of the brain controls:
vision
color blindness - correct answer ✔✔ Occipital
this lobe of the brain controls:
balance
coordination
fine muscle - correct answer ✔✔ cerebellum
this portion of the brain controls:
breathing
bp
heartbeat
swallowing
alertness/sleep
body temp
digestion - correct answer ✔✔ brainstem
this lobe of the brain controls:
understanding language
behavior
memory
hearing - correct answer ✔✔ temporal
these (2) arteries supply blood to the brain? - correct answer ✔✔ vertebral
carotid
,vertebral artery joins to form which artery?
This supplies blood to which parts of the brain? - correct answer ✔✔ basilar
brainstem
cerebellum
2 things the brain requires 2 things to function:
Blood flow must be maintained at 750-1000 ml/min.
How quickly does cell death occur? - correct answer ✔✔ oxygen
glucose
5 min
cerebral _____________________ is the change in diameter of cerebral blood vessels in
response to change in pressure.
Collateral circulation may develop to compensate. - correct answer ✔✔ auto regulation
compensation if there is a ↑or ↓ in cerebral blood flow, it prevents secondary injury.
factors affecting blood flow - correct answer ✔✔ O2
BP
CO
blood viscosity
IICP
CO2- (vasodilator, ↑CO2 ↑flow, ↓CO2 ↓flow)
, Collateral circulation - correct answer ✔✔ may develop to compensate for ↓ cerebral blood
flow, is also part of the auto regulation
Risk factors for CVA - correct answer ✔✔ •Most effective way to decrease the burden of stroke
is prevention & teaching
•Risk increases with multiple risk factors
non-modifiable
modifiable
Non-modifieable risk factors - correct answer ✔✔ •Age (over 65)
-gender(more men have them, but more women die)
•Ethnicity/race (African-American)
•Family hx
Modifiable risk factors - correct answer ✔✔ •#1 HTN single most important
•DM
•Heart disease (Afib, cardiomyopathy, valve disorders, etc..)
•Smoking
•High cholesterol
•Obesity, poor diet
•Sleep apnea
•Excessive alcohol use, illicit drug use (cocaine& meth)
•Metabolic syndrome
•Single most important modifiable risk is ↓HTN which ↓risk factors by 50% (goal SBP <140)