The World Anti-Doping Agency recently developed and instituted the Athlete Biological Passport (ABP), a tools that helps anti-doping organizations track levels of various molecules in competitive athletes. In 2009, WADA published formal guidelines on how to conduct standardized testing for evidence of blood doping, including how to track athletes’ longitudinal data as part of the ABP’s blood module, which includes 14 bloodborne biomarkers to indicate misuse of erythropoietin (EPO), blood transfusions, or other forms of doping using blood samples.
In 2014, WADA added the steroidal module to track the levels of testosterone and other steroids. These sets of tests can detect exogenously administered steroids, their various metabolites, precursors, and related molecules to better nail down doping as well as other anabolic agents. Tracking these markers over time is also a way to identify samples that may have been tampered with or exchanged with the urine sample of another individual, as ...