Neurological Alterations Flashcards
(51 cards)
What causes these
Decrease LOC
HA
Vomiting
Pressure on RAS
Stretch of vessels
Pressure on emetic center
Why do pupils dialate in increased ICP
Pressure on CN III
What do you need for mannitol (OSMOTIC diuretics)
FILTER tubing
What other meds can you use for increased ICP
Steroids (dexamethasone) (tumors), antiseizure meds (phyenytonin)
What are the causes of hydrocephalus
Communicating and non-communicating, increased fluid produciton, acute trauma
What is communicating hydrocephalus
Bad REABSORPTION
What is non-communicating
OBSTRUCITION of CSF flow
What is the treatment of hydrocephalus
Ventricular-peritoneal VP shunt
What are the three different types of head treuma
Deformation, acceleration, deceleration
What is deforemation trauma
Deformaiton of skull
Ex. fracture, penetrating injury, GSW
What is an acceleration trauma
IMMOBILE head struck with a moving object
COUP, damage right at the sight
What is COUP
Acceleration, BASEBALL hurts right in that area of the brain
What is deceleration
Head is moving and hits somehting that is still, CONTRECOUP, hurts on opposite
What is CONTRECOUP
The opposite area is hurt because the brain goes and hits the back, DECELERATION
What are we worried about in brain truama
Tear in dura leading the CSF leak
Tell me about a depressed skull fracture
Palpable, fragments may damage brain further, SURGERY
Tell me about a basilar skill fracture
Frontal and temporal lobes
BATTLE SIGN and RACCOON EYES
What is a linear skill fracture
Thin lines usally does not need anything
What causes a concussion
Sudden movement of the brain
What is a concussion
No break in skull or dura
What are the S+S of a concussion
HA, dizzy, N+V, ratrograde amnesia
What causes a contusion
TORN blood VESSELS that result in hemorrhage and bruising
What do contusions lead to
Edema and increased ICP
What is a transient ischemic attack (TIAS)
Can happen once or in series, TEMPORARY reduction in blood flow to the brain