Keto-Diastix Reagent Strips By Bayer Urine Test for Ketones. Ketone is a substance which is usually not harmful when found in small amounts in the urine. This could happen in dieting and gives you information on carbohydrate and fat metabolism. Popular low carbohydrate diets encourage the monitoring of Ketone levels in the urine to determine how successful the dieter is in burning body fat. The test results can help a dieter manage needed changes in the foods eaten to encourage better results or to alert them when Ketone levels are too high. Keto-Diastix Reagent Strips By Bayer Urine Test also test for Glucose. These are the basic test strips for testing for Glucose in the urine. The strip turns a specific color and that color is matched to a color chart on the Diastix bottle. This is an alternative to blood testing for glucose.