KikiD27 so sorry to hear about your mother.
From all the research I've done- for over 13 years (rid myself of cancer) I have studied and read the cardiologist Dr. Mathias Rath.
He says basically heart disease is like that of scurvy- it's due to a lack of vit. C.
Vit C is also an antibiotic, as well as many many positive things. So if there is a way to get (preferably) natural vit. C into your mothers system. I would think that Liposomal Vit C would be where to go ASAP- get it, get it into your mothers system. I make my own- but have also purchased this product. Doing so as soon as possible could help your mothers pneumonia issue as well.