Exam 3 Neuro Flashcards
How much CO does the brain receive?
20%
How fast does CBF adjust to CPP changes?
In 10-60sec
A Pt complains of an unresolved HA, what can be checked to rule out a pathologic ICP increase?
Lumbar puncture to check CSF for blood
What is the usual Mannitol dose?
0.5 - 1 mg/kg IVP
Relate dexamethasone to ICP?
Dexamethasone decreases ICP
What dermatomes control the bladder?
T11 - L2
What dermatomes could be affected with paraplegia?
T2 - T12
A Pt has uncontrolled hyperthermia, what could be a neurological cause?
High spinal lesion
What functions are disrupted with LVO’s?
Higher brain functions
What vessels make up the LVO’s?
Basilar artery
Carotid terminus
Middle cerebral artery
A lucid interval is the hallmark of?
Epidural hematoma
Which hematoma requires the use of Nimodipine?
Subarachnoid hematoma to decrease vasospasms
Which hematoma is treated with triple H therapy?
Subarachnoid hematoma
What fluids should be administered for CVA Pt’s?
Isotonic fluids
What hematoma most likely requires a craniotomy?
Subdural hematoma
What are the S/S of Alzheimer’s?
Apraxia
Aphasia
Agnosia
What is very important for someone with MS undergoing surgery?
Keep their temperature up.
Do not use Scc
May stress dose steroids
What are the S/S of a seizure while under anesthesia?
Tachycardia
HTN
Increased EtCO2
What 2 anesthetic/induction drugs should not be used in someone with seizures?
Methohexital
Etomidate
What is the difference in S/S of corneal abrasions vs ischemic optic neuropathy?
Abrasions: Painful, photophobia & unilateral
Neuropathy: Painless, vision loss, bilateral
What increases the risks for ischemic optic neuropathy?
Hypotension
Anemia
Vasopressors
Positioning (Face down, upright)
