skip to main content

Propofol EEG Effects — FRCA Primary MCQ

Instant feedback + full explanation. One question, done properly.

HardPharmacology - Intravenous AnaestheticsPropofol EEG EffectsFRCA Primary

Regarding propofol which statement about its effect on the EEG is correct?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: E — It produces burst suppression at high doses but not an isoelectric EEG at clinical doses

Propofol produces dose-dependent EEG changes: initial increase in alpha and beta activity at sedative doses / progressive slowing with theta and delta waves / burst suppression at high doses. True isoelectric EEG occurs only at very high doses. Excitatory movements seen in approximately 10% of patients are NOT true epileptiform activity on EEG.

Reference: Peck Hill Williams 2014 Pharmacology for Anaesthesia and Intensive Care