careplan help

So I am writing my careplan and my pt was admitted for lower extremity edema and was dx with cellulitis.No culture was grown for the cellulitis but he is on antibiotics. When I picked he was already at the hospital for a week now and the doctor said the cellulitis is resolved. The edema is 1+. While at the hospital he was dx with acute renal failure. so my primary medical dx is cellulitis (since he was admitted for it) and my secondary medical dx is acute renal failure. I have to have three nursing dx and they have to relate to his medical dx. I have two nursing dx ( impaired renal function and risk for excess fluid) for the acute renal failure and now I need one nursing dx for the cellulitis, again even though its pretty much gone I still have to include it since it was his primary medical dx. Could I put risk for infection?

As far as the other nursing dx goes are those the 3 top priority ones? or should I go a different route. the other nursing dx I was looking into for renal was risk for decreased cardiac output

Pt information- pacemaker, hemodialyisis, CKD, edema +1 in lower extremity, pain is 2 only for knee pain due to old surgery, history of liver transplant, hypertension

thank you!!!