The strip format is the most simple and economical alternative for clinical diagnostic testing. The strip is designed for rapid determination of medical conditions in urine, serum, or blood specimens. To perform the test, the strip is dipped a sample for 3 seconds. The reaction takes approximately 5 minutes with visual development of control and test lines(one line for positive, and both lines for negative results). The results obtained can be qualitative or semi-quantitative formats, depends on the individual test or technique.