One pink/rose lines appear in the Control Zone (C) with no visible line in the Test Zone (T). The sample DOES contain drug metabolites.
Two pink/rose lines appear (no matter how faint)-one in the Control Zone (C) and one in the Test Zone (T). The sample does NOT contain drug metabolites.
No pink/rose lines appear after 10 minutes, or a line appears in the Test Zone (T) but not in the Control Zone (C). An invalid test result may be due to improper testing procedures or because of a defect.