If you or your close one can't decide to begin with dialysis or not, a trial period of dialysis, usually a few weeks will be helpful in making one.
In this trial period, the effect of dialysis on medically and psychologically aspect of patient's life can be seen.
Medicines that help kidneys to function and some life style changes can help one to live a life without a dialysis.
This decision is best to be made with suggestions of renal doctors who know how much the kidney function is preserved.