@hils and @Teloz back in 1976 we had a chemistry set which enabled you to add 5 drops of wee and 10 of water in a test tube. A clinitest tablet was then added and wow tou should have seen those bubbles!! You then had to match the potion to the chart blue was excellent, green ok and orange meant you then had to do a further test for ketones. I used to love doing the tests the results could be a bit of a pain though and not really very accurate. Testing blood is not as much fun.