Isn't a constant 4/L of oxygen a little much for a long-term 86 year old COPD patient? What if she periodically just dozes off for awhile, wouldn't that also indicate perhaps a buildup of CO2? Just looking for a few opinions here.
Again, I'm not talking about an acute episode, patient cyanotic etc, I'm referring to a baseline level of 4L of oxygen being used at home, every day. Thanks for any help!