DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Urine test strip showing ketones. Kit used to test urine for signs of diabetes, kidney problems and urinary tract infections. The dipstick is immersed in urine and compared to the colour chart. The colours show the concentrations of glucose, ketones, nitrite, proteins, blood cells, and a number of other substances in the urine. In this case, there are high levels of ketones in the urine, a condition known as ketonuria. This can be a symptom of type 1 diabetes.
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