«There were a lot of people at that hospital. I suspect there were friends of Omid. I had a heightened awareness of my own safety and the safety of my colleagues,» Dr McDonell told Brisbane Coroners Court on Thursday.
«There were a lot of people moving around and a lot of people clearly upset. There was a great desire for me to speak to them.
«It felt a volatile situation.»
He also said Mr Masoumali, 23, had carbon dioxide levels so high he thought they were «erroneous».
«It would have been at great advantage to him to have been able to have the CO2 levels brought down … at a much earlier stage of his treatment,» the Masoumali family’s barrister Shane Prince SC said.
Dr McDonell agreed, before being shown photos of Mr Masoumali being treated in the hospital prior to his arrival in what appeared to be «a baby’s cot».
«That’s where they treated him,» Mr Prince said.
«That’s obviously mould on the wall. That’s obviously not ideal for a patient that is ventilated.»
Mr Masoumali arrived at Royal Brisbane and Women’s Hospital about 30 hours after he burned himself. He later died of organ failure.
A burns specialist who treated him at the Brisbane hospital agreed his treatment conditions on Nauru were «unacceptable».
Mr Masoumali died two days after suffering burns injuries he inflicted in front of UN representatives who «upset and frustrated» his partner, the inquest has heard.
He had poured petrol onto his clothes, with phone footage showing him pacing around a resettlement area of Nauru, yelling intensely then being engulfed in a large ball of flames.
The inquest continues.