Q:Confused on my labs FPSA 0.8

Here is what my numbers say and I’m lost.

Age 43 btw

FPSA, TOTAL
0.8


FPSA, FREE

0.2

Then is says FPSA Free %

So not sure what that means and I have a week before I go back? Nothing showed up off 6 months ago. But now I don’t know any of this.

Thanks