AND ANSWERS RATED A+
✔✔When should you see Delta? - ✔✔-background in infants >1yr
-stage 3 sleep
-OIRDA posteriorly in children
-FIRDA frontals in adults
-generalized with diffuse lesions
-focally with subcortical lesions
-ABNORMAl in awake adults
✔✔When should you see Theta? - ✔✔-sleep
ABNORMAL in awake adults
✔✔When should you see alpha? - ✔✔-normal awake adults
-ABNORMAL alpha coma
✔✔When should you see beta? - ✔✔-accentuated by barbiturates and benzos
-observed in all age groups, mostly anteriorly
✔✔What is the most common cause of generalized beta? - ✔✔medications
✔✔What medication has the most sedative effect on patients? - ✔✔barbituates
✔✔bilateral anterior beta is most likely to be caused by which medication? -
✔✔diazepam
✔✔At therapeutic levels, which medication will not cause any change in the EEG? -
✔✔phenytoin (Dilantin)
✔✔photic induced discharges are most associated with? - ✔✔barbiturate withdrawal
✔✔Which medication has the most observable effect on an eeg? - ✔✔benzodiazepines
✔✔What medication can cause triphasic waves or periodic discharges? - ✔✔Lithium
✔✔A drug overdose will cause what EEG pattern? - ✔✔beta coma
✔✔What is seen in the EEG with chronic alcoholism? - ✔✔low amplitude and
decreased alpha
✔✔In bipolar montages, what is the most valuable localizing feature? - ✔✔phase
reversals
, ✔✔In a referential montage, what is the most valuable localizing feature? -
✔✔amplitude
-this montage produces higher amplitude due to longer electrode distances
✔✔Normal variants include: - ✔✔Alpha variant, mu, RTTD, SREDA, 14&6, SSS/BETS,
wickets, 6hz spike and wave
✔✔Abnormal EEG patters include: - ✔✔-triphasic waves
-burst suppression
-FIRDA
-PLEDS
-GPEDS
-alpha coma
-SIRPEDS
✔✔ECI - ✔✔-no EEG activity over 2uv
-electrodes 10cm apart
-imps over 100 ohms but under 10kohms
-sensitivity ran from 7uv-2uv
✔✔Subacute sclerosing panencephalitis is associated with? - ✔✔measles
✔✔Localized or lateralized high voltage delta is seen in: - ✔✔cerebral abscess
✔✔An EEG of a pt with meningitis will show: - ✔✔slowing
✔✔PLEDS are most often seen with what condition? - ✔✔Herpes simplex encephalitis
✔✔Lennox-gastaut syndrome shows what pattern? - ✔✔slow and spike wave complex
✔✔What disease starts in the first few months of life and is associated with "acoustic
startle response"? - ✔✔Tay Sachs Disease
✔✔Neonatal EEG will most likely show: - ✔✔focal rhythmic activity
✔✔absence seizure: - ✔✔3hz spike and wave
✔✔Which neurological disorder includes eyelid myoclonia, eye closure induced
seizures, eeg paroxysms, & photosensitivity? - ✔✔Jeavons syndrome
✔✔rhythmic theta activity in the temporal region is most common in which type of
seizure? - ✔✔complex-partial seizures