ABRET Certified Neurophysiologic Intraoperative Monitor (CNIM) Practice Exam 2025 - Free CNIM Practice Questions and Study Guide

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How does propofol primarily influence somatosensory evoked potentials (SSEPs)?

Increases amplitude

Decreases latency

Increases latency

Propofol primarily influences somatosensory evoked potentials (SSEPs) by increasing latency. When propofol, a common anesthetic agent, is administered, it affects the central nervous system, leading to changes in nerve conduction and processing times. This is evident in SSEPs, where the latency indicates the time it takes for the electrical signal to travel from the peripheral nerves through the spinal cord to the cortex.

With the use of propofol, the depressant effects can slow down neural conduction pathways, resulting in longer latency periods. Therefore, assessing SSEPs can provide valuable information about the integrity of neural pathways under the influence of propofol during surgery. This understanding is critical for intraoperative monitoring since it helps anesthesiologists and neurologists evaluate the patient's neurophysiological status while under anesthesia.

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Decreases amplitude

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