- Reaction score
- 3 years
and I don't know if this will help but sometimes if it's starting to look like it matches half the card I will hold it up to the bathroom mirror and read it. I'm not sure if its the different perspective or the distance but sometimes it helps me pick the best one...it could just be me though LOLFLGirl to determine the correct level for your tests you will want to hold the test tubes directly against the white background. This will give you the correct reading for all of your tests.