Low Gfr And High Creatinine Levels Are A Warning For Your Heart bejo 6909 Share Low Gfr And High Creatinine Levels Are A Warning For Your Heart High Creatinine Levels: Symptoms, Causes, and Treatment Blood urea nitrogen/Creatinine ratio (BUN/Creatinine ratio) – Labpedia.net Read also: Speed Demon Or Desperation High Speed Chase Grips Tulsa