Thanks for writing in.
First of all the kidney infection
needs to be dealt with aggressively. There could be infection due to resistant organisms. She may require hospital stay with treatment including intravenous antibiotics.
Then comes the part where the cardiac condition needs to be controlled. This can be done with the expert opinion of a cardiologist. At the same time medicines given to her must have lease liver
or kidney toxicity.
The general health and nutrition also need further attention to keep her health from deteriorating further.
Hope this helps.