1 Flashcards
(124 cards)
Location of Lumbar Puncture
L3-L4 or L4-L5
Very low glucose in CSF
Tuberculosis
Positive EBV PCR in CSF
CNS Lymphoma in immunocompromised
T1
Anatomic; fluid is black
T2
Reverse anatomic: fluid is white
T2 FLAIR
Reverse anatomic; fluid is black
____ waves (___ Hz): posterior head regions during relaxed awake state with eyes closed
Alpha; 8-13
____ waves (___ Hz): o frontal regions during relaxed awake state with eyes closed
Beta; 14-30
____ waves (___ Hz): during drowsiness and sleep
Theta/Delta; less than 7
Absence seizures may be stimulated with _____.
Hyperventilation
Myotonic seizures may be stimulated with _____.
Photic stimulation
Central or Peripheral Nystagmus? Unidirectional
Peripheral
Central or Peripheral Nystagmus? May be purely vertical or purely horizontal
Central
Central or Peripheral Nystagmus? may be bidirectional
Central
Central or Peripheral Nystagmus? fixation inhibits nystagmus
Peripheral
Central or Peripheral Nystagmus? Tinnitus or hearing loss
Peripheral
Central or Peripheral Nystagmus? Chronic
Central
Which type of nystagmus? normal response to moving object
optokinetic
Which type of nystagmus? horizontal jerks changing direction every 2-3 minutes
Periodic alternating
Which type of nystagmus? seen in familial periodic ataxia
Downbeat
Which type of nystagmus? seen in Wernicke encephalopathy
Upbeat
Which type of nystagmus? greater amplitude than endpoint; seen in drug intoxication
Gaze evoked
Which type of nystagmus? Horizontal and rotary components
Vestibular
6 Causes of Vertigo
Labyrinthine concussion, infarction, perilymph fistula, vestibular neuronitis, Meniere Disease, BPPV