Work up for adequacy of dialysis
To do predialysis (when there is a long gap of dialysis, for example if on twice a week dialysis Tuesday and Friday, then do on Tuesday just before starting dialysis) CBC RFT LFT TSH lipid calcium phosphorus electrolytes bicarbonate (or ABG).

Do dialysis 3 to 4 days in a week of each session of 4.5 hours duration
Do dialysis blood flow rate > 350 ml per minute
Do KFT electrolytes bicarbonate calcium phosphorus LFT predialysis and post dialysis KFT