My blood report was like this Creatinine July 1.44,Aug 1.53,sept- 1.36,Nov-1.5 for past 5 months. 1.36 mg/do was when I was on veg diet. My Uric acid has been 8.3- 8.5 all the while. Cystatin C is 0.85 mg/L Been through Urine routine test, Mayoglobin, creatine kinase, they were all normal. As these reports are inconclusive, two nephrologist I consulted suggested for renal biopsy fit future diagnosis/prognosis. I'd like to get some opinions from experts here.