The Brain/Neurological Assessment - Unit 3 Flashcards
The Brain - basic building block is the ___.
Neuron.
A ___th of our brain is visual processing.
4th.
Brain - __% tissue, CSF ___%, Blood __%.
Tissue 80%
CSF 10%
Blood 10%
What do the meninges do?
Cover the skull/parts of brain
Glucose - what does it do in the brain?
It is brain food!
What is autoregulation in the brain?
It’s when the brain changes the diameter of the vessels because it needs to.
How much CSF do we produce in an hour?
About 20 mL/hour.
Hyperventilation - what does it do?
Protects us - CO2 dilates vessels in brain, so hyperventilation gets rid of CO2.
LOC - most sensitive neuro test. T/F?
True!
What are parts of the neuro exam?
Mental status, cranial nerves, motor system, reflexes, sensory system, coordination, station and gait.
When testing for pain/stimulation, should we test centrally?
Yes!
Stereogenesis - what is it?
Can’t understand what you’re feeling without looking at it.
What’s the Romberg test?
Close your eyes - if you can stand in one place and not move around, you’re good!
Glasgow Coma Scale - Scoring - Eye Opening
Spontaneous - 4
To speech - 3
To pain - 2
None - 1
Glasgow Coma Scale - Scoring - Verbal Response
Oriented - 5 Confused conversation - 4 Words (inappropriate) - 3 Sounds (incomprehensible) - 2 None - 1
Glasgow Coma Scale - Scoring - Best Motor Response
Obey commands - 6 Localize pain - 5 Flexion - Normal - 4 Abnormal Flexion - 3 Extend - 2 None - 1
If the Glasgow scale is less than 5, what has to happen?
Organ procurement is called.
Hippus pupils - def
Constrict then dilate back. This could be caused by an increase in ICP.
Pinpoint pupils - what might cause this?
Opioid overdose.
GIANT pupils - what might cause this?
Atropine
Hemeneoisis - what is it?
Vision loss of half of field.
Conjugate gaze - def
eyes going in different directions.
Nystagmus - what is it?
eye jerking.
What are some diagnostics tests in the neuro world?
CT/CTA (Arteries - great for stroke patients.)
MRI, MRI - 3D
PET - lights up the bad areas
Cerebral angiograms - dye - can see the vessels.
Carotid Doppler.
Lumbar puncture - infection?
Brain flow study - brain dead? If it doesn’t go up to the brain…oh boy!