Flashcards in Test One Deck (30):
If you see a skull defect what should you do and why
Mark defects, a breach rhythm will appear near defects
Opposite side from injury
Side of impact
Following a severe head injury, the EEG returns to normal, but neurological and psychological abnormalities persist
closed head injury
skull fracture but the covering of the brain is not in tact
open head injury
skull fracture that exposes brain or meninges
drainage of CSF from ears
drainage of CSF from nose
why do head injuries cause loss of concussions
Due to concussion from blow to the head when recticular formation is damaged
Tentorium separates from the cerebral hemispheres of brain stem and cerebellum
why is intercranial pressure considered extremely crucial
prevents herniation, reduce pressure
extended nocturnal sleep recordings may be helpful in predicting whether the pt in post-traumatic coma will recover. Explain the favorable and unfavorable sleep stages for this type patient
stuck in one stage of sleep- worse
coma - bad
spikes occur more often in children than adults after a head injury
explain the difference in an adult skull compared to a child's
adult- limited resilience beyond which it splinters
children- localized blow produces a depression without splintering
with rhinorrhea and otorrhea what can enter the skull? what can this possibly cause?
air, pathogens, viruses
causes infections, meningitis
epidural hematoma can cause bleeding, where?
above the dura
an acute epidural is composed of what type of blood
acute epidural a medical emergency?
what vessel probably ruptured?
middle meningial artery
EEG changes with epidural hematoma show what?
focal slowing and attenuation of amplitude over the hematoma
a subacute epidural hematoma is composed of what kind of blood?
A subdural hematoma is bleed ___ the ___
subdural hematoma is composed of what kind of blood?
a subdural hematoma may behave clinically like a ____
subdural hematoma may be chronic. these are often seen in what kind of pts?
alcoholics, elderly, epileptics (people who fall)
Bilateral subdural hematoma may be seen in what kind of pts?
EEG changes in subdural hematomas in adults will show what?
delta focus and voltage attenuation
children? more severe, more early detected than in adults
infants? bilateral abnormalities
A subarachnoid hemorrhage is bleeding into what space?
the eeg changes with subarachnoid hemorrhage are?
diffuse changes including disorganization, distortion of the posterior alpha activity and excessive slow activity