Opioids produce a dose related decrease in the frequency and amplitude of the EEG.
Low dose opioids show a loss of beta waves and a slowing of alpha waves.
Moderate dose opioids show diffuse theta waves and some delta waves.
High dose opioids show delta waves (high amplitude, 0-4 Hz). See Delta Waves on Wikipedia.
Unlike with volatile gases, barbituates, and propofol,complete isoelectric EEG waves cannot be obtained, even with high dose opioids.
Other References
- Keys to the Cart: January 22, 2018; a 5-minute video review of ABA Keywords Link
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