While you are waiting for your results, you may notice a colored solution moving across the strip. This is absolutely normal and all tests will have that.
In order to prevent dye runs from getting clear results, it is recommended to read the test at exactly 5 minutes, do not immerse the strip past MAX line and do not use the strip as a midstream test.
Always read the results at 5 minutes, if you read the results too early the test may not be finished reacting. Although a positive result should not change for several days, a negative result can change to a false positive within minutes after the end of the testing period.
The faint or shadow lines that have no color is where the reagent is applied to the test area. You will see reagent areas on any test if you look hard or make it wet.
This is how reagent strips work: If there is HCG hormone in your urine it will react with the reagent on the strip and the line will change color. You should disregard any lines that have no color or haven't changed color.