TBI Flashcards
primary head injury
initial damage that results from trauma to the head
secondary head injury
injury that evolves from minutes to days after initial injury
what does a secondary head injury result in
decreased metabolism and oxygenation
type of head injury in which the skull is fractured
open trauma
head injury with no skull fracture, just blunt trauma
closed trauma
80% of skull fractures, a simple clean break
linear
skull bone pressed inward, associated with hemorrhage
depressed
skull bone shattered, associated with hemorrhage
comminuted
signs of CSF leak in a basilar skull fracture
periorbital edema, rhinorrhea, otorrhea, postauricular ecchymosis (Battle’s sign)
battle’s sign is a sign of what
CSF leak in basilar skull fracture
closed head trauma: temporary loss of consciousness with questionable LT damage
concussion
closed head trauma: bruising at the site of impact
contusion
account for 26% of closed head trauma in children and adolescents
sports related concussions
cognitive rest
bed rest with no stimulation
space occupying lesions which can cause increased ICP
hematoma
this type of hematoma has a high mortality rate
epidural
an increased in CO2 causes what
vasodilation
decorticate position
flexion of UE, extension of LE
decerebrate position
extension of LE and UE
best medication to decrease ICP
osmotic diuretic Manitol
T or F: if ICP is increased the HOB should be flat
FALSE, 30-45 degrees
is vasoconstriction good or bad in increased ICP
good, it causes decreased bloodflow
the only type of fluid that should be given via IV to maintain cerebral perfusion
NS
to maintain adequate BP, a patient may take these 2 meds
dopamine (raise BP)
ditiazem (lower BP)
displacement of brain tissue from its normal compartments
herniation
T or F: in brain death there is still reflex activity in the spinal cord
true
T or F: in PVS there is positive reflex activity
true
brain death or PVS: apnea in the presence of hypercapnia (increased CO2)
brain death
indicator that the brain stem is intact in a comatose pt
positive doll’s eyes reflex