2 weeks ago creatinine was 1.06, urea 5, now creatinin is 0.94 urea is 4 but uric acid is 384 (borderline 340). bordering a1c 5.8. controled hypertention 125/80. kidney screening normal ranges. why does creatinine fluctate. can it be begining of ckd?

Creatinine fluctuate: Creatinine will vary depending on if it was drawn before you got out of bed or after. By time of day, by how much fluid you drink. It varies by your muscle mass. Discuss with your team Assume a 5% random error n labs and your Cr has not changed significantly. When creat goes up over time it may indicate kidney disease. Plot 1/Cr on Y and time on X and you can predict when you need dialysis.