Keto-Diastix Reagent Strips for Urinalysis , 50 count Featuring two areas for chemical reactions, the Keto-Diastix Reagent Strips for Urinalysis tests for both ketone and glucose in the urine. A simple dip and read test into a fresh sample of urine is a quick and convenient way to check for ketone or glucose. One part of the strip will change color when it detects ketones, another area changes color when glucose is detected. Colors will vary dependent on the levels of either glucose and/or ketones. Precisely following the directions and accurate timing is critical for results to be reliable.