NJ Fred said...
It is true - - egfr does not fix itself. It is what it is.
A lot depends on the cause of the drop. If the eGFR has dropped due to illness or injury there is a possibility it will bounce back when the trauma is over. I dropped from 70 to 40 and back to 70 when I had food poisoning. But chronic kidney decease only gets worse with time. You can slow it to a crawl if you do the right things. Follow your nephrologist advise.