Hi
I currently look after my dad who is 77, we had to call an ambulance last week for him, the first responder came and said his oxygen was less than 50, my Dad has not smoked for about 25 years but I suspect he is now smoking, he says all the time he wants to die, how serious is less than 50 and will smoking increase the chances of more hospital visits quickly? How many times can someone's oxygen drop so low before something more serious happens, thank you for reading