Which type of sample is commonly used in standard anti-doping tests?

• A. Hair Sample
• B. Urine Sample
• C. Nail Sample
• D. Blood Sample

Answer: (B)

Urine samples are used most often in standard anti-doping testing because they provide a practical, reliable way to detect a wide range of banned substances and their metabolites. The collection is non-invasive, quick from many athletes, and laboratories have well-established methods to screen for numerous compounds in one sample. In practice, tests often use a split-sample system (A and B) to confirm any positive result, a process built around urine collection. While blood testing is used for some specific checks, and hair or nail samples can indicate longer-term exposure, they are not the go-to method for routine, in-competition doping control.