<s>[INST] Dear Sir, I am  suffering IGA neuropathology . My creatine level is 2.00mg. Is it a critical stage? kindly answer my question. [/INST] Hello welcome to health care magic A normal value is 0.8 to 1.4 mg/..yes this is high,,please visit nephrologist it can be diagnoised by kidney biopsy only ... renal diet like low protein, low potassium, low sodium, low phosphorus, high calories is not required until IgAN has progressed to advanced renal failure.please consult your doctor... take care payal </s>