What does it mean when eGFR numbers fluctuate?
eGFR fluctuations can happen for several reasons and don't always mean your kidney function is changing dramatically. Your numbers show a drop from 90 to the 30s-50s range, which indicates progression from stage 1 to stage 3 kidney disease, but the recent jump from 34 to 51 Show Full Answer
What does it mean when eGFR numbers fluctuate?
eGFR fluctuations can happen for several reasons and don't always mean your kidney function is changing dramatically. Your numbers show a drop from 90 to the 30s-50s range, which indicates progression from stage 1 to stage 3 kidney disease, but the recent jump from 34 to 51 suggests some variability.
Several factors can cause temporary changes in eGFR readings:
* How much water, food, and salt you've recently consumed
* Your hydration level at the time of testing
* Presence of urinary tract infections
* Normal day-to-day variations in kidney function
The significant drop from 90 to 50 over the year does suggest your kidney function has declined. However, the week-to-week changes between 34 and 51 could reflect temporary factors rather than actual kidney function changes.
Your doctor will likely want to repeat testing to get a clearer picture. They typically look for consistent patterns over three months rather than relying on single test results. This helps distinguish between true kidney function decline and normal variations.
It's important to discuss these results with your nephrologist, who can review all your test results together and determine whether this represents actual disease progression or testing variability.
April 8
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