ABRET EXAM QUESTIONS AND
ANSWERS 100% GUARANTEED
PASS
What is the most attenuated by a low frequency filter of 1 Hz? - Answer- 0.1 Hz
Time constant is defined as the time required - Answer- For the deflection to fall to 37%
of the peak deflection
An EEG record has three per second spike and wave discharges. Both the spike and
the slow wave have voltage of 100uV. If this discharge is recorded with a low frequency
filter of 5Hz and a sensitivity of 10uV/mm, what would be the deflection of the spike and
wave? - Answer- Spike 10mm, Wave 6mm
A high frequency setting of 35 Hz would attenuate 50 Hz muscle activity by
approximately what percentage? - Answer- 40%
The foramen of Munro is the... - Answer- Opening between lateral ventricles and third
ventricle of the brain
Activation of an absence seizure is most consistently obtained during...? - Answer-
Hyperventilation
What term describes the resulting output when two inputs of the opposite polarity are
subtracted during the differential amplification process? - Answer- Summation
The filters creating the very narrowest band pass that should rarely if ever be used
clinically are... - Answer- LF 5.0, HF 15 Hz
The term used in cardiology to denote a low level of electric current applied directly to
the myocardial tissue, as low as 0.1 mA which causes ventricular fibrillation is.. -
Answer- Micro shock
What info do you need to calculate sensitivity? - Answer- Deflection (mm) and Voltage
(uV)
Normal alpha in an adult should NOT be seen in the... - Answer- Frontal head region
, What disease is caused by a proteinaceous particle or prion? - Answer- Creutzfeldt-
Jakob disease
Syringomyelia is... - Answer- An abnormal cavity or cyst in the spinal cord
Spinocerebellar degeneration - Answer- Friedreich's Ataxia
Without dietetic treatment, this hereditary disease may cause mental retardation and
infantile spasms. - Answer- Phenylketonuria
Central vertex electrode is... - Answer- Cz
What EEG pattern is considered a good prognostic sign in a comatose patient? -
Answer- Electrode inactivity
Slow waves of youth attenuate with... - Answer- Eye opening
______________________________________ is characterized by multiple seizure
types that are difficult to control, especially atonic seizures and atypical seizures, in
addition to generalized convulsions, and an abnormal EEG with generalized 2-5Hz slow
spike-wave discharges. - Answer- Lennox-Gastaut syndrome
In a chain linked bipolar montage, what is the most valuable localizing feature? -
Answer- Phase reversal
The dance like movements of head and extremities may be exhibited in a patient with
which hereditary degenerative disease? - Answer- Huntington's chorea
What condition is characterized by nightly rigidity and tremors? - Answer- Parkinson's
disease
Guidelines for recording digital EEG are written by: - Answer- The American Clinical
Neurophysiology (ACNS)
An area of a brain injury that occurs on the opposite side of the head is called: -
Answer- Contra-coup
The ability of the EEG instrument to output the voltage difference between two inputs to
a single channel is known as? - Answer- Differential amplification
What is an abnormal cortical response to photic stimulation? - Answer- Photo-
paroxysmal discharges
Congenital anomalies of the hindbrain with caudal displacement of pons, medulla, and
cerebellar vermis is called: - Answer- Arnold-Chiari malformation
ANSWERS 100% GUARANTEED
PASS
What is the most attenuated by a low frequency filter of 1 Hz? - Answer- 0.1 Hz
Time constant is defined as the time required - Answer- For the deflection to fall to 37%
of the peak deflection
An EEG record has three per second spike and wave discharges. Both the spike and
the slow wave have voltage of 100uV. If this discharge is recorded with a low frequency
filter of 5Hz and a sensitivity of 10uV/mm, what would be the deflection of the spike and
wave? - Answer- Spike 10mm, Wave 6mm
A high frequency setting of 35 Hz would attenuate 50 Hz muscle activity by
approximately what percentage? - Answer- 40%
The foramen of Munro is the... - Answer- Opening between lateral ventricles and third
ventricle of the brain
Activation of an absence seizure is most consistently obtained during...? - Answer-
Hyperventilation
What term describes the resulting output when two inputs of the opposite polarity are
subtracted during the differential amplification process? - Answer- Summation
The filters creating the very narrowest band pass that should rarely if ever be used
clinically are... - Answer- LF 5.0, HF 15 Hz
The term used in cardiology to denote a low level of electric current applied directly to
the myocardial tissue, as low as 0.1 mA which causes ventricular fibrillation is.. -
Answer- Micro shock
What info do you need to calculate sensitivity? - Answer- Deflection (mm) and Voltage
(uV)
Normal alpha in an adult should NOT be seen in the... - Answer- Frontal head region
, What disease is caused by a proteinaceous particle or prion? - Answer- Creutzfeldt-
Jakob disease
Syringomyelia is... - Answer- An abnormal cavity or cyst in the spinal cord
Spinocerebellar degeneration - Answer- Friedreich's Ataxia
Without dietetic treatment, this hereditary disease may cause mental retardation and
infantile spasms. - Answer- Phenylketonuria
Central vertex electrode is... - Answer- Cz
What EEG pattern is considered a good prognostic sign in a comatose patient? -
Answer- Electrode inactivity
Slow waves of youth attenuate with... - Answer- Eye opening
______________________________________ is characterized by multiple seizure
types that are difficult to control, especially atonic seizures and atypical seizures, in
addition to generalized convulsions, and an abnormal EEG with generalized 2-5Hz slow
spike-wave discharges. - Answer- Lennox-Gastaut syndrome
In a chain linked bipolar montage, what is the most valuable localizing feature? -
Answer- Phase reversal
The dance like movements of head and extremities may be exhibited in a patient with
which hereditary degenerative disease? - Answer- Huntington's chorea
What condition is characterized by nightly rigidity and tremors? - Answer- Parkinson's
disease
Guidelines for recording digital EEG are written by: - Answer- The American Clinical
Neurophysiology (ACNS)
An area of a brain injury that occurs on the opposite side of the head is called: -
Answer- Contra-coup
The ability of the EEG instrument to output the voltage difference between two inputs to
a single channel is known as? - Answer- Differential amplification
What is an abnormal cortical response to photic stimulation? - Answer- Photo-
paroxysmal discharges
Congenital anomalies of the hindbrain with caudal displacement of pons, medulla, and
cerebellar vermis is called: - Answer- Arnold-Chiari malformation
