My uncle is in a critical care facility after contracting pneumonia during a surgical lung biopsy. He has been there for 4 months after he contracted pneumonia after a lung biopsy surgery. He has emphazema and the doctors were happy with 88-90 sats. Now they are saying they are happy with 70-75. HIs sats have dropped into the 50s at times. He has become weaker and weaker and we are starting to wonder if he is going to be able to fight back much longer.