Before taking the PharmChek® Drugs of Abuse Patch exam you should first view the videos on applying and removing the sweat patch and carefully read the Training Manual. All the information necessary to answer the exam questions is contained in this material. You must answer at least 22 out of 25 questions correctly to receive a passing score. Those who pass the exam will receive a certificate via email. Please be sure to accurately complete your contact information at the end of the exam so we can send your certificate.