Test-device for threshold glucose detection in urine

A device for detection and quantification of glucose in urine comprising:

• a chromogenic indicator mixture comprising
• a first chromogenic indicator reagent combination capable of color development to indicate the presence of a lower concentration of glucose, and
• a second chromogenic indicator reagent combination capable of color development to indicate the presence of a higher concentration of glucose, wherein the first chromogenic indicator prevents color development of the second chromogenic indicator unless the higher concentration of glucose is present,
• a scavenger that prevents color development of the first indicator reagent composition unless a threshold concentration of glucose is present, and
• a matrix impregnated with the chromogenic indicator mixture.

A test kit for determining the concentration of glucose present in a sample of animal urine comprising

• a substrate impregnated with a chromogenic indicator mixture comprising
• a first indicator capable of color development to indicate the presence of a lower concentration of glucose, and
• a second indicator capable of color development to indicate the presence of a higher concentration of glucose, wherein the first indicator prevents color development of the second indicator unless the higher concentration of glucose is present in the urine sample;
• wherein the substrate is further impregnated with a scavenger that prevents color development of the first indicator unless a threshold concentration of glucose is present in the urine;
• and
• a color chart indicating urine glucose concentrations corresponding to a plurality of discernible colors.