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When to be concerned about eGFR?
Chronic Kidney Disease (CKD) | Last Active: Dec 20, 2025 | Replies (29)Comment receiving replies
@rotate The endocrinologist, among other things, is concerned about thyroid and blood sugar, not so much eGFR, as that responsibility is the nephrologist to help monitor that for you. High or low TSH values of your thyroid may affect eGFR. As previously stated., hydration is equally important as well as some contra-indicated medications. I personally would share your endocrinology lab work with your nephrologist so he/she is better informed about your kidney function. Last thing, if you have not seen a nephrologist yet, please do so. As I stated before, one lab value is not as important as a trend of values to establish a baseline. The value of 39 and your baseline require a nephrologist, not an endocrinologist. Your one value of 39 is just below average kidney function.
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@collegeprof
Thanks for the info. I don't have a nephrologist - the endo ordered the infusion that is at issue.
My primary has not asked for a nephrologist to be involved. Maybe I should get a consult. All of this is within Mayo Clinic PHX so it's easy to do (but can take months to in to a specialist, even as a long established Mayo patient. But the endo is paying attention to the kidney issue, just not a specialist there. The reason for the referral was bone density danger from very low testosterone (prostate cancer post-radiation treatment).
My baseline on the creatinine eGFR has been steady. It was >60 until prostate cancer treatment, then it dropped to oscillating in the '50s. I have only had one of the Cystatin, done at my request - so no trend to look at.