Hi.. He may need dialysis if those values are very high as the initial treatment.. And depending on the condition after the dialysis, the creatinine and GFR values and the cause for his present worsening of the condition the next treatment will be planned.. If you want to take a professional opinion of a nephrologist from India and do not want to come here, you can take the specialist opinion feature available in this website.. The link would be http://www.healthcaremagic.com/specialists/Nephrologist/Dr-Hasnain/8