Trauma I Flashcards
The vast majority of TBI is caused by _____
falls
These two criteria are used to classify TBI
Mechanism: blunt, penetrating, blast
Time Course: Primary or Secondary
Brain thermopooling refers to
brain temperature dysregulation
Blunt injury occurs from direct impact and manifests in these three ways:
1) Contusions
2) Extraaxial Hematomas
3) Diffuse axonal injury
Coup injuries occur at the ____ of impact when the head is _______
site; stationary
Contrecoup injuries occur ____ to impact and occur when the head is _____
opposite; moving
Contusions ___ over time which is known as ____
expand; blossoming
Epidural hematomas are associated with the groove of the ____ _____ _____
Middle Meningeal Artery
Epidural Hematomas are associated with a ____ interval
lucid
Epidural hematomas can also occur via _____ ____ laceration
venous sinus
Epidural hematomas ____ cross suture lines while subdural hematomas ____ cross suture lines
don’t; do
Subdural hematomas often cause ____ ____ injury
severe brain
Diffuse axonal injury presents with a ______ patient without signs of _____
unconscious; intracranial mass lesion
DAI causes breakage of ________
microtubules
____ ____ are the pathological hallmark of DAI
Retraction Bulbs
The hallmark of penetrating TBI are _____
lacerations
Blast TBI results in _____ ____ DAI
dose dependent
The Monro-Kellie Hypothesis formula
ICP= Pressure of Parenchyma + CSF + Blood
The ability to ____ volume change _____ with increased ICP
accomadate; decreases
Cerebral Perfusion Pressure equals
Mean arterial pressure - ICP
The brain’s ability to maintain constant blood flow is called
Cerebral Autoregulation
Contusions are areas of focal _______ _______
hemorrhagic necrosis
Contusions have a predilection for these two ____ ____(area)
gyral crests- Orbitofrontal and temporal
