Rountinely CRF is treated as single entity with stages. But in my clinical experience I have made out three types of CRF. 1. Already published an article in Docplexus on this type namely Fixed CRF meaning no changes occur in clinical settings and urea and creatinine are minimally increased with small sized kidneys in USG abdomen. No need for active therapy.

2. CRF of routine type where Dialysis is the treatment of choice with renal transplant ultimately. 3. CRF with Potassium being normal and this can be managed conservatively since Potassium related cardiac events are rare or rather none. Especially  elderly people with this type dialysis can be deferred if no chance of renal transplant possible.