ABRET ASAP PRACTICE TEST
QUESTIONS AND ANSWERS ALL
CORRECT
Which filter setting adjustment can be made to minimize muscle artifact in BAEP
recordings?
-Lower LFF to 15 Hz
-Lower HFF to 1500 Hz
-Raise HFF to 1500 Hz
-Raise LFF to 100-200 Hz - Answer- Raise LFF to 100-200 Hz
In identification of phase reversal for sensory-motor localization, which response is pre-
central and which is post-central?
-N20, P25
-N20, P22
-P25, N20
-P22, N20 - Answer- P22, N20
For procedures requiring hypothermia induced cerebral protection, the IOM tech can
note hypothermia is achieved
-P22
-P14
-P37
-N20 - Answer- P14
If the electrolyte from one stimulating electrode spreads to the other electrode, which of
the following occurs?
-increased current density
-electrical double layer
-current shunting
-increased impedance - Answer- current shunting
When performing IOM for an intraoperative MRI case, use of electrodes that are not
MRI-conditional may result in
-thermal burns
-60Hz artifact
-magnetic artifact
-the MRI malfunctioning - Answer- thermal burns
,What EEG rhythm is approximately 4-7Hz?
-Beta
-Theta
-Alpha
-Delta - Answer- Theta
MRI conditional electrodes are made from which of the following?
-nickel titanium
-gold
-tin
-silver-silver chloride - Answer- nickel titanium
Epidural electrodes are made of platinum because
-the chance of allergic reaction is eliminated
-it is the lowest impedance metal
-other metals may become toxic when currents are applied
-it is the most durable metal - Answer- other metals may become toxic when currents
are applied
Which cranial nerve travels above the cerebellopontine space? - Answer- trigeminal
What section of the spinal cord is considered a watershed zone? - Answer- thoracic
The third ventricle is connected to the fourth ventricle by the... - Answer- aqueduct of
Sylvius
What type of action potentials contribute to the popliteal fossa response?
-orthodromic only
-antidromic only
-both - Answer- both
The thalamus and hypothalamus make up the... - Answer- diencephalon
A positive Babinski sign is seen as:
-flexion of toes
-flexion of foot
-fanning of toes
-dorsiflexion of foot - Answer- fanning of toes
A loss of balance upon closing one's eyes while standing upright indicates a positive
-Hoffman's sign
-Babinski's sign
-Romberg's sign
-Lhermitte's sign - Answer- Romberg's sign
, What is likely to result from a positional compression of the brachial plexus?
-thoracic outlet syndrome
-friedreich's Ataxia
-multiple sclerosis
-acoustic neruoma - Answer- thoracic outlet syndrome
What is the most common presenting symptom of an intramedullary tumor?
-bowel or bladder dysfunction
-weakness
-sensory loss
-pain - Answer- pain
Saddle area sensory loss suggests a lesion in which area:
-pelvic plexus
-single nerve branch
-cauda equina
-spinal cord - Answer-
What is indicated by the presence of unilateral Babinski Signs?
-cerebellar dysfunction
-homonymous hemianopsia
-pyramidal tract dysfunction
-tic douloureux - Answer- pyramidal tract dysfunction
A babinski sign in an adult
-is abnormal if the toes plantarflex
-indicates an upper motor neuron lesion
-is normal
-is elicited the same way an Oppenheim's sign is elicited - Answer- indicates an upper
motor neuron lesion
Sensory evaluation of the opthalmic, maxillary, and mandibular branches is used during
a neurological exam of which cranial nerve?
-glossopharyngeal
-trigeminal
-facial
-oculomotor - Answer- trigeminal
Snellen chart
-ocular movement
-visual activity
-hearing threshold
-motor strength - Answer- visual activity
Which of the following risks described to patient prior to IONM is most common?
-Arithmia
QUESTIONS AND ANSWERS ALL
CORRECT
Which filter setting adjustment can be made to minimize muscle artifact in BAEP
recordings?
-Lower LFF to 15 Hz
-Lower HFF to 1500 Hz
-Raise HFF to 1500 Hz
-Raise LFF to 100-200 Hz - Answer- Raise LFF to 100-200 Hz
In identification of phase reversal for sensory-motor localization, which response is pre-
central and which is post-central?
-N20, P25
-N20, P22
-P25, N20
-P22, N20 - Answer- P22, N20
For procedures requiring hypothermia induced cerebral protection, the IOM tech can
note hypothermia is achieved
-P22
-P14
-P37
-N20 - Answer- P14
If the electrolyte from one stimulating electrode spreads to the other electrode, which of
the following occurs?
-increased current density
-electrical double layer
-current shunting
-increased impedance - Answer- current shunting
When performing IOM for an intraoperative MRI case, use of electrodes that are not
MRI-conditional may result in
-thermal burns
-60Hz artifact
-magnetic artifact
-the MRI malfunctioning - Answer- thermal burns
,What EEG rhythm is approximately 4-7Hz?
-Beta
-Theta
-Alpha
-Delta - Answer- Theta
MRI conditional electrodes are made from which of the following?
-nickel titanium
-gold
-tin
-silver-silver chloride - Answer- nickel titanium
Epidural electrodes are made of platinum because
-the chance of allergic reaction is eliminated
-it is the lowest impedance metal
-other metals may become toxic when currents are applied
-it is the most durable metal - Answer- other metals may become toxic when currents
are applied
Which cranial nerve travels above the cerebellopontine space? - Answer- trigeminal
What section of the spinal cord is considered a watershed zone? - Answer- thoracic
The third ventricle is connected to the fourth ventricle by the... - Answer- aqueduct of
Sylvius
What type of action potentials contribute to the popliteal fossa response?
-orthodromic only
-antidromic only
-both - Answer- both
The thalamus and hypothalamus make up the... - Answer- diencephalon
A positive Babinski sign is seen as:
-flexion of toes
-flexion of foot
-fanning of toes
-dorsiflexion of foot - Answer- fanning of toes
A loss of balance upon closing one's eyes while standing upright indicates a positive
-Hoffman's sign
-Babinski's sign
-Romberg's sign
-Lhermitte's sign - Answer- Romberg's sign
, What is likely to result from a positional compression of the brachial plexus?
-thoracic outlet syndrome
-friedreich's Ataxia
-multiple sclerosis
-acoustic neruoma - Answer- thoracic outlet syndrome
What is the most common presenting symptom of an intramedullary tumor?
-bowel or bladder dysfunction
-weakness
-sensory loss
-pain - Answer- pain
Saddle area sensory loss suggests a lesion in which area:
-pelvic plexus
-single nerve branch
-cauda equina
-spinal cord - Answer-
What is indicated by the presence of unilateral Babinski Signs?
-cerebellar dysfunction
-homonymous hemianopsia
-pyramidal tract dysfunction
-tic douloureux - Answer- pyramidal tract dysfunction
A babinski sign in an adult
-is abnormal if the toes plantarflex
-indicates an upper motor neuron lesion
-is normal
-is elicited the same way an Oppenheim's sign is elicited - Answer- indicates an upper
motor neuron lesion
Sensory evaluation of the opthalmic, maxillary, and mandibular branches is used during
a neurological exam of which cranial nerve?
-glossopharyngeal
-trigeminal
-facial
-oculomotor - Answer- trigeminal
Snellen chart
-ocular movement
-visual activity
-hearing threshold
-motor strength - Answer- visual activity
Which of the following risks described to patient prior to IONM is most common?
-Arithmia
