Lab Tests Online is a peer-reviewed, patient-centered, non-profit web resource about clinical laboratory testing. The site provides information on clinical lab tests as well as conditions that are managed or diagnosed by lab tests. Lab Tests Online also provides summaries of recommendations by age, feature articles on lab-related topics, and news items of patient interest. All contents are reviewed and approved by an Editorial Review Board composed of laboratory professionals before being posted to the site. As of 2012 the site received about 2 million viewers a month.