From my sister this am,
This can get complicated, but the most important thing is that Mike has a chance of pulling out of this. Here are the facts. Rusty talked to the Doctor.
He has Viral Pneumonia in his (R) lung. With going untreated for a long period of time, he has developed a blood infection which is referred to as Sepsis (you can google sepsis). The infection in his blood has caused Renal Failure (kidneys are not functioning properly). The Sepsis is the cause of his low blood pressure and the problems with his kidneys.
Mike is currently had some heavy duty IV antibiotics, Oxygen and on a Ventilator. In this case the ventilator is just helping him take in the oxygen. It will take another few days to find out if the medicine is working. If the meds work, Mike should be fine. If the meds don't work, they'll change the course of treatment.
These are the facts as we know them. Mike still has the chance of pulling out of this. However, there is the possibility that he will not.
I'll let you know when I hear more.