ACTUAL Exam Questions and CORRECT
Answers
HYPERVENTILATION result - CORRECT ANSWER - Hypocapnia: state of reduced
carbon dioxide in the blood
Photoparoxysmal response - CORRECT ANSWER - EEG response to light with spikes,
spike-wave discharge and/or intermittent slow waves
Input impedance should be - CORRECT ANSWER - very high
According to the Guidelines, how many bits of resolution is required? - CORRECT
ANSWER - 11
Which of the following is the WORST prognostic feature in the EEG of a comatose patient? -
CORRECT ANSWER - monorhythmic tracing without variability
SMALL SHARP SPIKES are also called - CORRECT ANSWER - Benign Epileptiform
Transients of Sleep (BETS)
HYPSARRHYTHMIA shows - CORRECT ANSWER - Disorganized, continuous high
voltage slow waves with interspersed multifocal spike waves
A seizure discharge arising from the right frontal lobe is likely to be characterized clinically by -
CORRECT ANSWER - deviation of head and eyes
What is most important when evaluating the background activity? - CORRECT
ANSWER - Record the maximal state of alertness
,High voltage theta or delta waves, commonly seen in children 8-14 years, accentuated by
hyperventilation: - CORRECT ANSWER - Posterior Slow Waves of Youth (PSWY)
A stroke which results in only LEFT leg weakness most likely involves which of the following
arteries? - CORRECT ANSWER - The RIGHT anterior cerebral artery
Rare 6-11 hz negative sharp arciform waves, most commonly seen in adults over 30 years in the
mid-temporal regions. - CORRECT ANSWER - Wickets
A prolonged series of generalized convulsions without any period of consciousness between
them is referred to as - CORRECT ANSWER - status epilepticus
What differentiates Lambda and POSTS - CORRECT ANSWER - Occurs with eyes open
If the Low Frequency Filter is changed from 1 Hz to 5 Hz, how will a 2 Hz slow wave be
affected? - CORRECT ANSWER - It will be significantly attenuated
Creuetzfeldt-Jakob disease EEG shows - CORRECT ANSWER - GPDs/GPEDS
Mu Rhythm is a frequency of - CORRECT ANSWER - 8-10 Hz
In which of the following conditions are periodic lateralized epileptiform discharges most likely?
- CORRECT ANSWER - Herpes simplex encephalitis
Photic induced epileptiform discharges are most likely associated with - CORRECT
ANSWER - barbiturate withdrawal
Subacute sclerosing panecephalitis is associated with - CORRECT ANSWER - Measles
,Seizures commonly result from withdrawal of which of the following? - CORRECT
ANSWER - Alcohol
At what conceptional age is a delta brush pattern primarily seen? - CORRECT ANSWER -
32 to 34 weeks
An electrographic seizure is characterized by - CORRECT ANSWER - Episodic rhythmic
activity
Which of the following occurs during a typical absence seizure? - CORRECT ANSWER -
Impaired consciousness
What is the term that describes failure of the alpha rhythm to attenuate with eye opening? -
CORRECT ANSWER - Bancaud's Phenomenon
INFANTILE SPASMS EEG shows - CORRECT ANSWER - Electrodecremental Events
Slow sampling rate may cause fast frequencies to appear slower: - CORRECT ANSWER -
aliasing
The polarity convention for EEG states that the deflection is up if input - CORRECT
ANSWER - 1 is more negative than input 2
The EEG pattern of hypsarrhythmia is usually associated with - CORRECT ANSWER -
infantile spasms
An EEG obtained within 24 hours following a closed head injury would be LEAST likely to
show - CORRECT ANSWER - focal spike activity
Excessive beta frequency activity may be the result of which of the following? - CORRECT
ANSWER - Drug effect
, TIME CONSTANT - CORRECT ANSWER - Low frequency filter
Photic stimulation is most effective in evoking epileptiform abnormailties in patients with -
CORRECT ANSWER - a family history of seizures
What normal activity would be seen most prominently at the C3 or C4 electrode postion? -
CORRECT ANSWER - Mu
Patients with temporal lobe epilepsy may display ictal automatisms, which are: - CORRECT
ANSWER - Stereotyped, repetitive movements, such as lip smacking or rubbing fingers
together
Which of the following infectious diseases is most frequently associated with periodic complexes
in the EEG? - CORRECT ANSWER - Herpes simplex encephalitis
What is most useful when determining localization and polarity? - CORRECT ANSWER -
montage
HYPNAGOGIC HYPERSYNCHRONY - CORRECT ANSWER - can be present during
arousal state transitions, both prior to sleep and onset and following arousal
Which of the following is abnormal? - CORRECT ANSWER - asymmetric attenuation of
the alpha activity
Alpha coma is most often seen following: - CORRECT ANSWER - cardiac arrest
Mu Rhythm is located ... - CORRECT ANSWER - C3/C4