CLTM AND EEG BOARD PREP
COMBINED - REBECCA CLARK-BASH
STUDY SET QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
The most appropriate time constant for recording a low voltage slow wave focus is:
a. 0.012 seconds
b. 0.05 seconds
c. 0.12 seconds
d. 1.00 second - ANSWER c. 0.12 seconds
Time constant = biggest number for slowing
Which of the following typically produces diffuse slowing on the EEG?
a. Meningioma
b. Cerebral abscess
c. Alzheimer's disease
d. Cerebral thrombosis - ANSWER c. Alzheimer's disease
Meningioma
Lateralized or Focal, Diffuse, Focal - ANSWER Lateralized or Focal
Alzheimer's disease
Lateralized or Focal, Diffuse, Focal - ANSWER Diffuse
Cerebral Thrombosis
Lateralized or Focal, Diffuse, Focal - ANSWER Focal
Which of the following is a characteristic feature of the EEG in narcolepsy?
,a. FIRDA
b. REM onset sleep
c. An increase in EMG
d. Diffuse delta slowing - ANSWER b. REM onset sleep
What is the most common cause for temporal lobe seizures in adults?
a. Diffuse axonal injury
b. Hippocampal sclerosis
c. Glioblastomamultiforme
d. Venousangioma - ANSWER b. Hippocampal Sclerosis
In a one-year-old child with West Syndrome, episodes of neck flexion and arm extension are MOST likely
to be associated with which of the following EEG patterns?
a. 3Hz spike/wave discharges
b. fast polyspike and wave discharges
c. generalized paroxysmal fast activity
d. polymorphic theta and delta activity - ANSWER c. generalized paroxysmal fast activity
During brain mapping, which of the following techniques is commonly used to localize the central
sulcus?
a. median nerve SEPs
b. intracarotid amobarbital test
c. wake up test
d. implantation of depth electrodes - ANSWER a. median nerve SEPs
West Syndrome - Seizure Type - ANSWER Infantile Spasms
Select the epilepsy syndrome known to present with electrodecremental response following each event:
a. Infantile Spasms
, b. West Syndrome
c. Hypsarhythmia
d. Lennox Gasteaux - ANSWER b. West Syndrome
Impedance for Strips and Grids: - ANSWER < 10nA (nanoamps)
Maximum allowable chassis leakage with invasive electrodes: - ANSWER 10mA rms
If you are recording with electrodes of different metals (mismatched metals such as one gold electrode
referenced to Silver Silver Chloride electrode) what might you expect to record?
a. High Impedance Readings
b. 60 Cycle Artifact
c. Bias Potentials from the differential amplification of the different charge of each metal
d. No change as the Common Mode Rejection would eliminate the different in metal charge. - ANSWER
c. Bias Potentials from the differential amplification of the different charge of each metal.
What metal is best for recording electrodes? - ANSWER Chlorided Silver Disk
Ag-AgCl
What is another name for Sodium Hypochlorite? - ANSWER Bleach
Collodian & Acetone should be stored in which of the following
a. Non-Flammable Cabinet
b. Flammable Cabinet
c. Bio-Hazard Cabinet
d. Refrigerated Cabinet - ANSWER b. Flammable Cabinet
Which of the following is most often associated with intractable epilepsy:
a. Febrile Seizures
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