1
ABRET Questions with Answers (100%
Correct Answers)
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
,2
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
The desirable characteristic of a differential amplifier in which like signals are
cancelled is called: Answer: Common Mode Rejection (CMR)
A normal waking and sleeping adult EEG would NOT include: Answer: Delta
range activity during alert stages
A spike is printed out on paper and measures 16mm peak to peak the sensitivity
is 7uV/mm and a calibration of 50uV causes a deflection of 7.1mm. What is
the voltage of the spike? Answer: 112uV
At a sensitivity of 3uV/mm, how much voltage is represented by a 7mm
deflection? Answer: 21uV
______________________________________ is a genetic epilepsy syndrome
whose gene has been mapped to chromosome 6 and becomes evident in normal
, 3
teenagers with early morning myoclonic jerks and generalized tonic-clonic
seizures. Answer: Juvenile Myoclonic Epilepsy (JME)
Lambda differs from POSTS in that lambda is seen during... Answer: Eye
opening
A small fluctuating output by the EEG instrument even when there is no input
signal and not associated with electrical line voltage from the outlet and other
electrical devices is called: Answer: Noise
Photic driving ___________________ Answer: May or may not be present in a
normal EEG recording
The basic unit for measuring current flow is Answer: Ampere
The basic unit of resistance is Answer: Ohm
What is not a valid expression of Ohm's law? In this equations E (electromotive
force) is the same as V (voltage). Answer: R = E I or (R=VI)
What is not a unit for measuring alternating frequencies? Answer: Volts
What describes the action of a capacitor? Answer: Stores energy
A circuit that allows some frequencies to pass through it, while others are
blocked is a Answer: Filter
A combination of electronic components designed to increase the power,
voltage or current of a signal is a Answer: Amplifier
A small fluctuating output recorded by the EEG instrument even when there is
no input signal is called Answer: Noise
The eeg amplifier is designed so that when input 1 is more negative than input
2, the deflection will be Answer: Upward
Common mode rejection is Answer: The characteristic of an amplifier that
rejects external interference
ABRET Questions with Answers (100%
Correct Answers)
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
,2
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
The desirable characteristic of a differential amplifier in which like signals are
cancelled is called: Answer: Common Mode Rejection (CMR)
A normal waking and sleeping adult EEG would NOT include: Answer: Delta
range activity during alert stages
A spike is printed out on paper and measures 16mm peak to peak the sensitivity
is 7uV/mm and a calibration of 50uV causes a deflection of 7.1mm. What is
the voltage of the spike? Answer: 112uV
At a sensitivity of 3uV/mm, how much voltage is represented by a 7mm
deflection? Answer: 21uV
______________________________________ is a genetic epilepsy syndrome
whose gene has been mapped to chromosome 6 and becomes evident in normal
, 3
teenagers with early morning myoclonic jerks and generalized tonic-clonic
seizures. Answer: Juvenile Myoclonic Epilepsy (JME)
Lambda differs from POSTS in that lambda is seen during... Answer: Eye
opening
A small fluctuating output by the EEG instrument even when there is no input
signal and not associated with electrical line voltage from the outlet and other
electrical devices is called: Answer: Noise
Photic driving ___________________ Answer: May or may not be present in a
normal EEG recording
The basic unit for measuring current flow is Answer: Ampere
The basic unit of resistance is Answer: Ohm
What is not a valid expression of Ohm's law? In this equations E (electromotive
force) is the same as V (voltage). Answer: R = E I or (R=VI)
What is not a unit for measuring alternating frequencies? Answer: Volts
What describes the action of a capacitor? Answer: Stores energy
A circuit that allows some frequencies to pass through it, while others are
blocked is a Answer: Filter
A combination of electronic components designed to increase the power,
voltage or current of a signal is a Answer: Amplifier
A small fluctuating output recorded by the EEG instrument even when there is
no input signal is called Answer: Noise
The eeg amplifier is designed so that when input 1 is more negative than input
2, the deflection will be Answer: Upward
Common mode rejection is Answer: The characteristic of an amplifier that
rejects external interference
