Pre-Test Day: Please follow the instructions for how to create your Concentric account and/or register for new tests once your account has been made. I can’t log in to my account. Can you help?
On Test Day: If you are a Test Taker, please ensure you have had nothing in your mouth in the 30 minutes before spitting in the tube (including food, water or other drinks, gum, smoking, or vaping). If you have had something in your mouth in the last 30 minutes, the Test Supervisor will ask you to come back later in the day to test. This helps to avoid inconclusive test results!