Hi ed,
Thanks for it...
I will talk to the doctor about it and will write the response soon...
I think to be absolutely certain that his oxygen levels are fine, they should do a blood gas, and not just rely on the finger sensor. This happened to my Wife, she was very light headed and not really responding to me. The Nurse told me it was the meds, but when I said "I don't believe so, if anything happens to her after I have questioned this, I will hold you responsible", she called a Doctor. A blood gas revealed very low oxygen (even though the finger sensor was reading 98%). She was put onto a ventilator. This was due to a lung infection which turned into pneumonia.