ch:20 head and facial cond Flashcards
(42 cards)
vital signs
pulse
respiratory rate
bp
body temp
pulse in head trauma
slow,bounding pulse= inc intracranial pressure
accelerated pulse= pressure at the base of the brain
respiration and head trauma
slow breathing= inc intracranial pressure
cheyne-stock (alternating periods of breathing and apnea)= brain damage
ataxic(unpredictable)= respiratory depression and brain damage typically at the medullary level
apneustic (pronlonged inhlae no exhale)= trauma to pons
bp and head trauma
inc systolic or dec diastoli = rising intracranial pressure
anterograde vs retrograde memory
anterograde= amnesia of event after point of injury
retrograde = amnesia before the point of injury
raccoon eyes
skull fx
- fracture of the eyebrow level that travels into the ant cranial fossa and sinuses
battle sign
basilar fx above and behind the ear
epidural hematoma
focal injury
- direct blow to the side of the head almost always associated w/ skull fx
s/s
- LOC and then regained feeling normal
- gradual decline in mental status
- h/a
- drowsiness
- nausea/vomiting
- ipsilateral dilated pupils
subdural hematoma
- more common the epidural
- hemorrhage occurs when the bridging vein btw the brain and the dura mater is torn
- caused by acceleration forces of the head
- either simple or complicated
complicated = deadly
s/s of inc intracranial pressure
- pupillary dilation and retinal change on affected side
- irreg eye tracking/ mvt
- severe h/a
- nausea/vomiting
- confusion/emotional
- progressive or sudden LOC
- rising bp
- failing pulse
- irreg respiration
- inc body temp
what are concussion defined as
a brain injury and is a complex pathophysiological process affecting the brain, induced by biomechanical forces
external provocative tests for head traumas
- 40yard sprint
- five jumping jacks
- ffive sit-ups
- five push-ups
- five kn bends
five motion tested in VOMS
- smooth pursuit
- hz and verticle saccades
- convergence
- hz vestibular ocular reflex
- visual motion sensitivity
posttraumatic h/a
- vascular h/a is a result od vas-plasm normally dev shortly after impact
- localised area of blindness
- refer to physician
postconcussion syndrome
length of sysptom persistence after concussion
- related to altered neurotransmitter func
- may predispose pt to second impact syndrome
second impact syndrome
- precipitated by an earlier event of concussion that is unresolved.
- A second blow to the head results in diffuse cerebral swelling and brainstem herniation.
- happens 3-5min after the second blow
- pt collapses and progressively dies
facial red flags
- obvious deformity or crepitus
- irregular eye mvt or failure to accommodate to light
- appearance of long face
- malocclusion of the teeth
- inc pain on palpation
normal opening of the jaw
40mm
mandible fx
common site: mandibular angle and condyles
management
- imp to keep open airway
- barten bandage
- tongue bite test
René le Fort maxilla fx classification
Le Fort Fx I: fx separating of the palate
II: extends into nasal region
III: involve complete craniofacial dissociation
epistaxi
types of epistaxi (origin)
anterior bleeding: originates form superficial bld vessels on the ant septum
kiesselbach plexus
POSTERIOR bleeding: post nasal cavity via branches of the sphenopalatine arteries leading to significant hemorhage
why apply ice to back of neck with nosebleed
activate mammalian diving reflex
causing peripheral vasoconstriction
epistaxis red flags
- CSF
- +5min
- loss of smell
- foreign objects that cannot be removed easily
- nasal deformity or fx