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Intraoperative Neurophysiologic Monitoring: Cranial Nerve Monitoring

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1.  Which of the following is a common method of monitoring cranial nerve activity and function in the operating room? Auditory Evoked Potentials Electromyography Somatosensory Evoked Potentials A & B only

2.  What method of monitoring allows for detection of the electric potential generated by muscle cells when the cells are activated? Electromyography Auditory Evoked Potentials Direct Nerve Stimulation Somatosensory Evoked Potentials

3.  What is the most appropriate method of monitoring for a sensory nerve? Evoked Potentials Electromyography Direct Nerve Stimulation Transcranial Evoked Potentials

4.  What is the most appropriate method of monitoring a motor nerve? Electromyography Direct Nerve Stimulation Transcranial Evoked Potentials A & B

5.  Which of the following cranial Nerves are monitored by electromyography? Cranial Nerves V, VII, VIII, IX Cranial Nerves V, VII, X, XI Cranial Nerves II, V, VII, IX, X Cranial Nerves II, V, VII, VIII, IX

6.  What muscles are appropriate for monitoring the Facial Nerve? Occipitofrontalis, Orbicularis oculi, Orbicularis oris, Buccinator, Mentalis, Depressor labli Lateral pterygoid, Orbicularis oculi, Obicularis oris, Buccinator, Mentalis, Depressor labii Occipitofrontalis, Obicularis oris, Masseter, Mylohyoid Occipitofrontalis, Orbicularis oris, Mental's, Trapezius

7.  What gland does the Facial Nerve run through, though not innervate? Salivary Glands Lacrimal Gland Parotid Gland Submandibular Gland

8.  Which of the following is a challenge to obtaining good data for cranial nerve monitoring in the operating room? Electrical noise Anesthetic changes Thermal stimulation All of the above

9.  Which of the following is not a significant source of electrical noise in the operating room? Electrocautery Devices Unplugged Surgical Equipment Fluid Warmers Parallel Cord Arrangements

10.  In terms of anesthetic, volatile gasses: tend to wipe out the ABR tend to create a more robust Vestibular Evoked Myogenic Potential (VEMP) can wipe out any Vestibular Evoked Myogenic Potential (VEMP) but ABR is generally not impacted are no longer used in surgeries