Remaining Exam 3 Material [CH 22] Flashcards
anatomy of the head
-skull
-brain
-meninges
skull
composed of 22 bones
brain
-contained within the bony cavity of the cranium
-divided into 4 sections
-cerebrum coordinates all voluntary muscle activities + higher mental functions
-cerebellum = balance + coordination
cerebrum function
coordinates all voluntary muscle activities + higher mental functions
cerebellum function
balance + coordination
meninges
3 membranes that protect the brain + spinal cord
-dura mater, outer
-arachnoid, middle
-pia mater, inner
outer meninges
dura mater
middle meninges
arachnoid
inner meninges
pia mater
assessing head injuries- history
-do you know where you are?
-can you tell me what happened to you?
-does your head hurt?
-do you have any pain in your neck?
assessing head injuries- observation
-is the athlete able to tell where he or she is?
-is there a blank or vacant stare?
-are there delayed verbal + motor responses?
assessing head injuries- palpation
palpation of the skull to identify areas of point tenderness or deformity
special tests for head injuries
-neurological exam
-eye function (PEARL- pupils, equal, accommodate, round + light)
-balance tests
-coordination tests
-cognitive tests (SCAT 5, IMPACT)
what makes brain injuries special
-most of the time brain injuries won’t show up in imaging, so must base diagnosis more off symptoms
-a lot of athletes lie so they can get back into the game- to avoid this, do baseline tests so you can compare after brain injury
skull fx- cause
-blunt trauma
-baseball to the head or fall from a height
skull fx- signs
-severe headache + nausea
-palpation may reveal skull indentation
-racoon eyes or battle’s sign
racoon eyes
bruising in a butterfly pattern on the face
-2 black eyes at the same time
battle’s sign
-bruising on the back of the ear
-indicates baselar skull fx, aka broken base of the skull
-important because a lot of the stuff that keeps you alive goes through the base of your skull
-HIGH DEATH RISK
skull fx- care
-immediate hospitalization
-referral to neurosurgeon
concussion- cause
-a type of traumatic brain injury
-trauma-induced alternation of mental status
-direct blow to the head by some object (ball or other player)
concussion- signs
-headache
-dizziness
-LOC (loss of consciousness)
-feeling “in a fog”
concussion- care
-a concussion is a concussion, there is no such thing as a “mild concussion”
-athlete must be removed from competition
-not allowed to return to competition until cleared by a physician
post concussion syndrome- cause
poorly understood condition
post concussion syndrome- signs
-persistent headache
-impaired memory
-lack of concentration
-irritability
post concussion syndrome- care
-no clear-cut treatment
-athlete shouldn’t be allowed to return to play until all the symptoms of this condition have resolved
school recommendations for return to learning protocol
-cognitive rest 1-3 days- yoga, meditation, no screen use
-light cognitive- listening to music, playing familiar games
-1/2 school days
-full school days
second impact syndrome- cause
result of rapid swelling of the brain following a second concussion occurring before the symptoms of a previous concussion have been resolved
second impact syndrome- signs
-within 15 seconds to several minutes, the condition worsens rapidly
-dilated pupils
-LOC
-coma
second impact syndrome- care
-life-threatening emergency
-must be dealt with within 5 minutes by dramatic life saving measures
cerebral contusion- care
usually results from an impact injury in which the head strikes a stationary immovable object such as the floor
cerebral contusion- signs
-LOC
-neurological exam is normal
-headache
-dizziness
cerebral contusion- care
hospitalization with a variety of imaging tests
epidural hematoma- cause
a blow to the head that can cause a tear of the meningeal arteries embedded in bony grooves in the skull
epidural hematoma- signs
-symptoms worsen quickly
-LOC
-severe head pain
-dizziness
-nausea
epidural hematoma- care
-life-threatening
-CT scan to diagnose
subdural hematoma- cause
-results from acceleration/deceleration forces that tear vessels that bridge the dura mater + the brain
-signs tend to appear more slowly
subdural hematoma- signs
-may be unconscious
-headache
-dizziness
-dilation of 1 pupil
subdural hematoma- care
-life threatening
-CT or MRI necessary
migraine headaches- cause
-exact cause unknown
-may be caused by a vascular disorder
migraine headaches- signs
-flashes of light
-blindness in half of the field of vision
-severe headache
-nausea + vomiting
migraine headaches- care
-best management is prevention
-prophylactic medications to reduce recurrence
mandible fx- cause
-most often occur in collision sports
-direct blow