Got my labs, can you help?

I got my lab results. I have two questions,

my estimated GFR is >=60  Range is >=60, so does that mean my kidneys are functioning at 100%?

my BUN/Creat Ratio is 22  Range is undefined.  I read online that above 20 is abnormal, so what does that mean?

My Neph said everything looks great.  But just wondering about these two things. Thanks!

[MSKshelly]

The GFR rating scared me as well, and is based on the bun/creatine ratio etc,
What was your creatine rate
and you bun?

I know my GFR rating got low and i was concerned though my doctors were not
however after having the procedure done by Dr. Wolf, my rate went up or improved 20pts.

I don't think they get concerned until it is low for several months etc.

Shelly

[warney]

it is only a concern if it stays low and a number of tests show a decline.  60-89 is chronic kidney disease stage 2 IF there are other symtpoms of same. stage 3 is 30-59 without or with symproms and is moderate CKD.