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Living Long-Term at Stage 4 Kidney Disease

Kidney & Bladder | Last Active: May 23 1:50pm | Replies (17)
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@mrainne

I appreciate this response. My c cystatin test GFR was 35. Taken at the same blood draw, my creatinine GFR result was 27. That may not seem a big difference, but it puts me in 3rd stage rather than 4th stage which means a lot to me.

It seems more often c cystatin results are lower than creatinine. Is this the case?

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Replies to "I appreciate this response. My c cystatin test GFR was 35. Taken at the same blood..."
collegeprof | @collegeprof | May 23 11:32am

@mrainne You will probably find over time that your eGFR Creatinine fluctuates but it can be higher, lower or the same as the Cystatin C lab test in terms of specific stage. As I said, I have found personally that Cystatin C is very stable, and my nephrologist treatment and my awareness of this lab test makes me watch what I eat and how much liquid I consume daily. Remember, Cystatin C is unique as its eGFR is determined by age. I had a nephrologist one time who could care less about the creatinine eGFR as compared to the true value of Cystatin C stage, but I believe it is useful as a comparison of body muscle mass.

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