Flashcards in Day 12.1 Neuro Deck (28):
Most common causes of meningitis in newborns--> 6mo
Gp B Strep
Most common causes of meningitis in small kids 6mo--> 6yrs
Enteroviruses (Echo, Coxsackie- these cause aseptic meningitis, whereas the others cause bacterial)
Most common causes of meningitis in kids-adults 6yr-->60yr
HSV (this also causes temporal lobe encephalitis)
Most common causes of meningitis in 60+ yr elderly?
What genes are responsible for skeletal devt?
Clinical px of thyroglossal duct cyst?
Midline of neck
Moves when swallowing
Which phase of hepatic metabolism is lost first by geriatric pts?
Which phase of hepatic metabolism is mediated by Cytochrome p450?
What are the 4 obligate aerobe bacteria?
Nagging pests must breathe:
Vasculitis w necrotizing granulomas of lung and necrotizing glomerulonephritis
Vasculitis w necrotizing immune complex inflam of visceral/renal vessels
Vasculitis in a young Asian woman
Vasculitis in a young asthmatic
Vasculitis in young children; coronary arteries can be involved
Most common vasculitits
Kids- Henoch-Scholein purpura
Vasculitis a/w HBV infection
Rx to prevent the neurotoxicity of isoniazid
Pyridoxine (Vit B6)
Rx for TCA cardiotoxicity
NaHCO3 to alkalinize the plasma/urine
Rx for Theophylline cardiotoxicity
Where is CN III wrt the arteries in the circle of willis?
Between the PCA and the SCA (superior cerebellar artery).
An aneurysm in PCA or SCA can cause CN III palsy d/t mass effect.
Where does the PICA enter the circle of willis?
Vertebral arteries (PICA = posterior)
Where does the AICA enter the circle of willis?
Basilar arteries (AICA = anterior)
Medial medullary syndrome is the occlusion of which artery?
Anterior Spinal Artery (the one that comes up in the middle of the 2 vertebral arteries)
What are the characteristics of medial medullary syndrome?
Pyramid/corticospinal tract dmg --> Contralateral spastic hemiparesis of lower extremities
Medial lemniscus dmg --> Contralateral tactile and kinesthetic defects (proprioception)
Hypoglossal nucleus/nerve dmg --> tongue deviates toward lesion (ipsilateral paralysis)
What artery is occluded in lateral medullary syndrome (aka Wallenberg's)?
(Infarct of lateral part of rostral medulla)
What are the characteristics of lateral medullary syndrome/Wallenberg's?
Spinothalamic tract dmg --> Loss of contralateral pain/temp
Trigeminothalamic tract dmg --> loss of pain/temp on ipsilateral face
Nucleus ambiguus- glossopharyngeal and vagus dmg --> hoarseness, difficulty swallowing, loss of gag reflex (ipsilateral)
Descending symp tract dmg --> Ispilateral Horner's syndrome
Vestibular nuclei dmg --> vertigo, nystagmus, naus/vom
Inferior cerebellar peduncle dmg --> Ipsilateral cerebellar deficits (ataxia, past pointing)
What artery is occluded in lateral inferior pontine syndrome?
AICA (which comes off of basilar artery)