Sorry for the late response, unfortunately my old man passed away. Drs made a decision to withdraw ventilator as he was just working harder and harder, and after 16 days, they withdrew his ventilator, as he wasnt improving.
He was initially put on High Flow Oxygen after extubation, as a last ditch attempty, but even that made things worse.
He was eventually moved to pallative care and put on low dose oxygen and given morphine, he passed away peacefully.
@Debbie, he had a major acute episode 3 weeks ago where he couldnt breathe, initially on emergency floor they gave him NIV but after 4 hours they had to intubate him as his stats started dropping i believe.