CNIM Practice Exam 1 Answered Correctly – Expert Verified | Latest Version 2024/2025

Your initial signal amplitude is 0.5 μV inside a background noise of 2 μV, what will the signal to noise ratio be after 400 averages? - 5 You would expect a loss of BAEPs in which surgery? - Pontine glioma You want your vertical resolution to: - Match the amplitude of your input to maximize the signal You want to have matching impedances so that: - You can maximize your common mode rejection You record a spinal potential to: - Establish an AP Why is platinum used in epidural recordings - Other metals become toxic when current is applied to them due to the ionic Why do we use electrodes with the same metals - To prevent electrode polarization Why are SSEP and MEP used simultaneously? - Spinal cord damage can occur in only one tract causing loss of MEP but not SSEP Which procedure would require intraoperative spinal cord monitoring? - Kyphoscoliosis Which one of the following is and excitatory neurotransmitter? - Glutamate Which one of the following is an inhibitory neurotransmitter? - GABA Which one of the following is an excitatory neurotransmitter? - Glutamate Which of the following will result in significantly elevated SSEP latencies? - Charcot-Marie Tooth disease Which of the following statements is true? - Later cortical peaks are affected more than earlier peaks