Certain medications and physiological changes can interfere with MEP measurements. When this happens, the results obtained from MEP may not be as accurate.
Medications that may interfere with MEP are:
anesthetics, both inhaled and intravenous muscle relaxants benzodiazepines opioids
The physiological changes that can impact MEP readings are:
significant increases or decreases in body temperature low blood pressure low blood oxygen levels electrolyte imbalances