Another very well illustrated site on the Human Excretory System

Urinalysis Strip. You can expose your 'strip' to a sample of your urine.
Then compare the color of each band on your strip to each line of the key.
Find the color that most closely matches the color on your strip.
This is the value for that element found in your urine.
You'll notice that the bands on the strip do not exactly line up with the lines of colors on the key.
Also, be sure and line up your strip with the key as is shown in this diagram.
(Holding the strip from the bottom and pointing it upward, along the key.)
Now you can click here for the explanations of your results