Saw the oxygen nurse for the first time as all other assessments were done my phone because of Covid. It was decided the pulsed oxygen I have been on (INOGEN), isn’t enough as even on the highest setting which gives 1.8litres of O2 my SAT’s drop to 75% with the slightest exertion. But when I was given continuous oxygen a blood test showed that I’m not getting rid of enough carbon dioxide, which can cause problems. It’s been decided that I am to use oxygen when moving, but not when I’m sitting or sleeping. It’s hoped that when moving I will blow off the CO2. Problem is without oxygen my SAT’s when stationary are still only 85%. So hard to know which is worse , low O2 or high CO2.
Sorry for long post.