Procedure station.
Candidates were expected to demonstrate that they could accurately determine brain death.
Introductory material presented was:
“Mrs Thompson is a 55 year old woman with a history of severe airways disease who suffered a sudden loss of consciousness 48 hours ago. She is now being mechanically ventilated and has fixed dilated pupils. You are required to evaluate her for brain death. What additional information would you like to know?”
Fifteen out of twenty-seven candidates passed this station.

Disclaimer: the viva stem above may be an original CICM stem, acquired from their publicly available past papers. Or, perhaps it is a slightly altered version of the original CICM stem. Or, it is a completely original viva stem, concocted by the monstrously amoral author of Deranged Physiology for nothing more than his own personal amusement. In either case, because the college do not make the main viva text or marking criteria available, almost everything here has been confabulated. It might sound like a plausible viva and it could be used for the purpose of practice, but all should be aware that it does not represent the "true" canonical CICM viva station.