Hello~My eGRF is 75 and it is perfectly normal, especially for my age. Here is how they determine it:
The GFR range for a youngadult female is 78-158. From age 30, values fall by approximately 1
The GFR range for a young adult male is 87-167. From age 30, values fallby approximately 1 mL/min/year.
I would be willing to say your eGFR is fine. As to the ratio, I am not too sure, you would need to ask you GP about that. If you are not drinking enough water, it can throw lots of lab results tests off, so try increasing your water intake if you haven't already.
What prompted your testing and what did the doctor say?