I take B-12 shot. What is the causes of BUN at 19 and Creatinine level at 1.5 & GFRNA is 57?
I am taking the B-12 shots , I had blood work done and my BUN was at 19 & my Creatinine level was at 1.5. My GFRNA was 57. Do I have to worry about this? I am male 33 years old.










