Neurological Flashcards
Stroke
Damage to brain by interuptions of blood supply
Hemorrhagic Stroke
blood leaks out of damaged blood vessels into interstitial space
-brain tissue deprived of O2
-blood in skull rises intracranial pressure
Ischemic Stroke
-bv delivering O2 to the brain is blocked
-position determines the extent of the damage
What does a pupillary check involve
-PEARL
-pupils equal and reactive to light
-Bi-lateral dilation and movement
GCS - Glasgow coma scale
Eyes response /4
Verbal response /5
Motor response /6
Neurological Assessment
- pupillary check
- GSC
- level/loss of consciousness
-observed behaviors - evaluation of cranial nerves
-motor strength and function
-vitals
Cushings Triad
bradycardia, irregular respirations, and a widened pulse pressure.
- neurological emergency
-indicates a severe increase in ICP
Diffuse Axonal Injury
tearing of axons that happens when the brain is injured as it shifts and rotates inside the skull.
Coup
coup injury is associated with a moving object impacting a stationary head (brain)
Countercoup
-brain rebounds and strikes the opposite side of skull
Contusion
bruising or bleeding in the brain
brain cells will likely die
Concussion
-TBI
-brief disruption in LOC and amnesia due to head injury
Focal vs Diffuse Head injury
focal: confined to one area of the brain
- haematoma
- contusion
diffuse: happens in more than one area of the brain
-concussion
-diffuse axonal injury
Subarachnoid Hemorrhage (SAH)
- bleeding in the space that surrounds the brain
-often caused by an aneurysm
Subdural hematoma
bleeding in the subdural space, between the dura mater and arachnoid layer