<s>[INST] Hi, My dad had swelling in his legs since 3 months. Then 1 month ago, he had pnemonia & was hospitalized. At that time his creatinine level was 2.2. Then we took him to nephrologist where he gave him Lasix. His sugar level increased. He had neat alcohol 2 weeks before & since then he is not feeling well. At that time his creatine level increased to 3.2. He has no stamina & sleeps the entire day. Doctor changed the medicine & gave him Dytor, Arkemin 0.1 & amlopress 5+50. Now his sugar level & BP is fine. But his creatine level increased to 6.9 & hydration in lungs. What to do? Is it lung or kidney problem? He has no swelling in his legs now. [/INST] In my opinion your dad case if he had no other underlying disease, increased ingestion of cooked meat , excessive protein intake, lack of excercise, certain medications  could cause that increases its level but it actually suggestive for a renal impairment condition. For your dad for now I would recommend your nephrologist for some investigations especially U/S to clarify the main cause of edema which is if bilateral due to a systemic disease in the renal system. </s>