MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
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Urine test results. Doctor holding a dipstick that has been immersed in a urine sample and is being compared with a colour chart of possible results. From bottom to top, the ten coloured pads are showing the results of tests for glucose, bilirubin, ketones, specific gravity (density), blood, pH levels, proteins, urobilinogen, nitrites, and leucocytes (white blood cells). High levels of glucose and ketones in the urine are symptoms of diabetes. High concentrations of blood cells and other substances may indicate infection or kidney problems. Photographed at St Mary's Hospital, Lacor, Gulu, Uganda.
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