Neurology Flashcards
How do you monitor Respiratory Function in Guillan-Barre?
Vital Capacity
Sx: Diffuse HA worse in AM, vision changes, AM N/V, CN deficits, imbalance, cushing reflex
Intracranial HTN (get MRI/CT)
Cushing Reflex
Bradycardia and HTN
What CN deficit do you see in Uncal Herniation?
CN III
Causes of Subdural hematoma
bridging vv tear 2/2 blunt trauma
Drug to give in SAH to prevent cerebral aa vasospasm
Nimodipine
Asymmetric Limb Weakness
ALS
ALS Tx
Riluzole
ALS EMG readings
widespread mm denervation and motor block
AE’s of aminoglycosides
Ototox and nephrotox
Tx of acute MS attack
Steroids
What does pronator drift test for?
UMN damage in upper extremities
What is the strongest RF for stroke?
HTN
What is the most common site of hypertensive hemorrhages in brain?
Putamen
With what condition in trigeminal neuralgia associated
MS
Sx: Parkinsonism, autonomic dysfcn, widespread neurological deficits
Shy drager syndrome (Multi-system atrophy)
Cherry red spots are seen in _____?
Tay sachs, neimann-pick, retinal aa occlusion
What is Todd’s Palsy?
Motor defect 15-24 h after seizure
Tx for essential tremor
Primidone
AE of primidone
Porphyria (GI, psych, neuro abnl)
Argyll-Roberston pupil
accomodates to near obj, but does not react to light
Most common cause of conjunctivitis
Adenovirus (VERY CONTAGIOUS), URI/diarrheal illness too
What imaging to get in suspected stroke?
CT brain w/o contrast
Cerebral Salt wasting syndrome
hyponatremia 2/2 SIADH
Painless, sudden loss of vision. Flash. Floaters. Sometimes 2/2 trauma
retinal detachment
Disorders with lens subluxation/dislocation
Marfans, homocystinuria, Alport
Inflammation of lacrimal sac
dacroscleritis (strep/staph)
Shingles of ear/CNVIII involvement
Ramsay-hunt syndrome
Tx of ramsay hunt syndrome
antivirals, pain meds, steroids
Condition assoc w retinal hamartomas
Tuberous Sclerosis
Erythematous TM with vesicles
Bullous myringitis
Causative organism of Bullous Myringitis
M. Pneumo
Tx for bullous myringitis
oral macrolide
Hemispatial neglect syndrome lesion
non dominant parietal lobe (also finger agnosia)
LDopa/Carbidopa AE
Early: Hallucinations
Late: Involuntary movements (Michael J Fox)
CT Scan Head
HypOdense: infarct
HypERdense: hemorrhage
port-wine stains of the face, glaucoma, seizures, mental retardation, and ipsilateral leptomeningeal angioma (cerebral malformations and tumors). Tramline intracranial calcifications
Sturge Weber
What drugs cause increased ICP?
Vit A analogues, tetracyclines, growth hormone
What brain lesion can be caused by status epilepticus?
Cortical laminar necrosis (excitatory cytotoxicity)
What is the most common site of Ulnar Nerve entrapment?
Elbow
Cushing ulcer onset/cause?
Acute. Increased ICP. Obvious nn impairment
Ruptured berry aneurysm nn deficit?
SAH, typically doesn’t have focal nn deficits
What medication slows MS progression?
IFN B
Most common site of lacunar infarct?
Internal capsule HTN is cause. Internal brain structures
absence sz tx
Ethosuximide or VPA
Autism CT
Increase total brain vol
OCD CT
orbitalfrontal cortex and striatum
Panic D/O CT
decrease amygdala vol
PTSD CT
decrease hippocampus size
Schizo CT
increased ventricle size
Acute ataxia and delerium in malnourished and ETOH pts
Wernickies
Bell’s Palsy lesion is on ? side
Ipsilateral
Central cord syndrome
elderly, hyperext injury. Esp a car crash. Cortical spinal tracts injured
Posterior cord dyndrome
Bilat loss of dorsal column
Anterior cord syndrome
2/2 occlusion of vertebral AA or burst fracture. Bilat loss of motor fcn below lesion along with loss of pain and temp
What CN carries sensory function to cornea
Trigem
Wallenberg
PICA occlusion/lateral medullary infarct. Loss of pain and temp and cerebellar signs
Acute opiate w/d in ED tx?
Give methadone
NPH broad based gait happens early in dementia dz
NPH broad based gait happens early in dementia dz
Pseudotumor sequelae
Blindness!
Met acidosis following tonic clonic sz tx
Usually goes away in 60-90 mins. Just observe
Most important prognostic factor for astrocytoma?
anaplasia, not mets. mets are rare in astrocytoma
Facial nn nucleus is in what part of bstem?
Pons. Most of CN nuclei from pons. CN III from midbrain tho
myoclonic sz. in kids. worse w sleep deprivation. progress from absence sz at around age 10
juvenile mycolonc epilepsy
Why can’t you give ergots and triptans within 24 h of each other?
may result in prolonged vasospasm due to high 5ht levels
Cord Cavitation?
Syringomyelia
Most common cause of viral meningitis?
Enteroviruses (like echo and coxsackie)
Hemianestheia with severe dysesthesia. Where is the stroke?
Think thalamus. This is typical of thalamic stroke
Fullness in ear assoc with vertigo?
Meniere’s. Abnl accumulation of endolymph in ear
Craniopharyngiomas have a bimodal age distribution. What ages?
Children and 55-65
Burst fracture of vertebrae (like jumping from tall building) can lead to what spinal cord problem?
Anterior Cord Syndrome
What is the only drug indicated in ischemic stroke if tpa isn’t available?
ASA. can reduce risk of recurrent stroke.
Sharp, triphasic, synchronous discharges on EEG?
Spongiform enceph
aphasias are due to lesions in what part of the brain?
frontal lobe. dominant. mca distro
How do you diagnose spinal narrowing/lumbar stenosis?
MRI - due to degenerative joint dz
Hearing loss in elderly patients?
Presbycusis. Patients often have difficulty in crowded environments. high freq hearing loss