EASY AND CLEAR: Just remove the cap and dip the test into urine for only 10 seconds; Read the result in 5 minutes, not later; Clear and bold line appears quickly. It is negative if 2 lines appear and is positive if only control line appears. The negative result as quick as 1 minute. NOTE: A very faint test line still means a negative result. 510(k) Cleared for Home Use (OTC Use), CLIA Waived for professional use; Same science used as Lab screening test;; Same science used as Lab screening test.