Hello , Ideally end stage kidney disease(ESKD) patient requires thrice weekly Hemodialysis for good quality of life and for lab values to be within normal limits , if urine output is adequate he can be managed with twice weekly schedule if he is doing well, but once a week dialysis will definitely be inadequate( creatinine level if measured after dialysis will decrease but will again accumulate because patient is not clearing it naturally)

His creatinine is better due to dialysis. Min recommendations is three times a week Please show to nephrologist , need to assess before you the frequency

If he has bilateral small size kidneys and his creatinine had increased to 10- he requires hemodialysis as maintenance therapy at least twice a week. the most frequent dialysis the lower the creatinine will be maintained and the better his help will be. Thrice weekly insures that apart from his creatinine,- electrolytes, are maintained at as normal as possible.

Please consult a nephrologist