Kidney & Electrolytes
eGFR on TRT
What the number means, why it moves on a protocol, and how it sits with related markers.
What it is
eGFR estimates how well the kidneys filter, calculated from creatinine, age and sex. It is only as good as the creatinine that feeds it.
The range
How to read the lab range
Above 90 is normal; 60 to 89 is mildly decreased on paper and normal for many adults; under 60 on two tests is kidney disease.
Why it moves on a protocol
- Anything that raises creatinine (creatine, muscle, dehydration) lowers eGFR without the kidney changing.
- Blood pressure and diabetes lower it for real over years.
How Magno reads it
Magno keeps every test on one line, against your lab's range, with the change since last time. Pro explains it in plain words. Get Magno for iPhone.
Read yours
Drop your lab PDF or a photo and get every marker explained in plain words. Free, no account, your file never leaves your browser. Track it in the iPhone app to see the change since your last test.
Questions people ask
eGFR 75 on TRT, is that a problem?
Often not. Creatine and muscle mass can explain much of it. Cystatin C gives a second view that ignores muscle.
Related markers
Not medical advice
This explains what the number is and why it moves. It is not medical advice; decisions belong to you and your clinician.