Combined 2026 Exam
Questions and Answers | A+
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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
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, 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