Hi
the
kidney failure in your mother could be due to diabetic kidney disease or due to
heart failure due to poor blood supply to the kidney.
If the kidney failure is not recoverable CKD stage 5, she may require
dialysis life long.
In fact it is difficult to manage the patient with kidney failure and poor heart function.
It is difficult to say from your question without actually seeing the patient how frequent or how long she requires dialysis.
Your treating Physician or
Nephrologist would be better judge.
Take care