IONM Exam Questions with
Correct Answers | Latest Update
100% Pass
Intraoperative Neurophysiologic Monitoring - CORRECT ANSWER-IONM
stands for:
IONM - CORRECT ANSWER-•Reduce risk of complications in surgical
operations that involves the nervous system
•Aid surgeon in operation
•Detect changes in function
•Identify neural structures that are not visible
•Determine the anatomical location of pathologies
•Determine when the goal of an operation has been achieved
•Provide a basis for basic and applied research - CORRECT ANSWER-•Specific
Purposes of IONM
•Neural conduction in nerves & fiber tracts
,•Synaptic transmission - CORRECT ANSWER-What's monitored?
•Peripheral & cranial nerves
•Sensory systems
•Motor systems - CORRECT ANSWER-What's monitored?
Structures
Nerve potentials - CORRECT ANSWER-•changes in voltage of different parts of
a neuron
•Intra/extracellular voltage difference
•Axon vs synapse
•Action potential (AP)
•Neurophysiologic potential (NP): - CORRECT ANSWER-nerve potentials
recorded as:
evoked - CORRECT ANSWER-•Stimulate nerve then record
•Stim: electric, acoustic, visual, magnetic
•Tests/modalities: SSEP, MEP, t-EMG, BAER, VEP, TOF
non evoked - CORRECT ANSWER-•Passive neurologic activity
•Tests/modalities: s-EMG, EEG
COPYRIGHT ALL RIGHTS RESERVED ©️ 2025
, •Stimulation electrodes: - CORRECT ANSWER-•Peripheral nerves (ulnar,
median, posterior tibial, peroneal)
•Motor cortex
•Directly on nerve tissue
•Recording electrodes: - CORRECT ANSWER-•Head & neck
•Muscles of face, torso, legs, & arms
testing modality - CORRECT ANSWER-Electrode Placement Sites based on:
International 10-20 System - CORRECT ANSWER-•refers to % of distance
between electrodes in relation to specific anatomical landmarks
•Nasion
•Inion
•Preauricular points
•
•This is applicable in all 3 planes
•Sticky pad/surface pad electrodes: - CORRECT ANSWER-•Stimulation of
peripheral nerves
•Subdermal needle electrodes: - CORRECT ANSWER-•Stimulation of peripheral
nerves
•Recording of muscle responses
Correct Answers | Latest Update
100% Pass
Intraoperative Neurophysiologic Monitoring - CORRECT ANSWER-IONM
stands for:
IONM - CORRECT ANSWER-•Reduce risk of complications in surgical
operations that involves the nervous system
•Aid surgeon in operation
•Detect changes in function
•Identify neural structures that are not visible
•Determine the anatomical location of pathologies
•Determine when the goal of an operation has been achieved
•Provide a basis for basic and applied research - CORRECT ANSWER-•Specific
Purposes of IONM
•Neural conduction in nerves & fiber tracts
,•Synaptic transmission - CORRECT ANSWER-What's monitored?
•Peripheral & cranial nerves
•Sensory systems
•Motor systems - CORRECT ANSWER-What's monitored?
Structures
Nerve potentials - CORRECT ANSWER-•changes in voltage of different parts of
a neuron
•Intra/extracellular voltage difference
•Axon vs synapse
•Action potential (AP)
•Neurophysiologic potential (NP): - CORRECT ANSWER-nerve potentials
recorded as:
evoked - CORRECT ANSWER-•Stimulate nerve then record
•Stim: electric, acoustic, visual, magnetic
•Tests/modalities: SSEP, MEP, t-EMG, BAER, VEP, TOF
non evoked - CORRECT ANSWER-•Passive neurologic activity
•Tests/modalities: s-EMG, EEG
COPYRIGHT ALL RIGHTS RESERVED ©️ 2025
, •Stimulation electrodes: - CORRECT ANSWER-•Peripheral nerves (ulnar,
median, posterior tibial, peroneal)
•Motor cortex
•Directly on nerve tissue
•Recording electrodes: - CORRECT ANSWER-•Head & neck
•Muscles of face, torso, legs, & arms
testing modality - CORRECT ANSWER-Electrode Placement Sites based on:
International 10-20 System - CORRECT ANSWER-•refers to % of distance
between electrodes in relation to specific anatomical landmarks
•Nasion
•Inion
•Preauricular points
•
•This is applicable in all 3 planes
•Sticky pad/surface pad electrodes: - CORRECT ANSWER-•Stimulation of
peripheral nerves
•Subdermal needle electrodes: - CORRECT ANSWER-•Stimulation of peripheral
nerves
•Recording of muscle responses
