I have CKD Stage 3, 2 months ago my GFR was 52 and my Creatinine was152, this week my GFR was 37 and creatinine was 190, I had pneumonia 6 weeks ago could that have caused such a big change?
Yes . Your renal function tests will fluctuate with your overall health, medications, body composition, hydration as well as whatever is going on with your kidneys. GFR estimates are subscientific. You owe it to yourself to ask exactly what is up and whether you have actual renal disease that needs specific management. .