I hate to reopen such an old thread, but why start a new one?
I got some urinalysis test strips from CVS called "Keto-Diastix" that test glucose and ketone. The glucose "pad" reads out in colors labled like this:
Negative % 1/10 1/4 1/2 1 2 or more
Negative mg/dL 100 250 500 1000 2000 or...