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U.S. Anti-Doping Agency Athlete Express
DOPING CONTROL PROCESS
3. SAMPLE PROCESSING 1. Selection 2. Notification 3. Sample Processing 4. Analysis
3. Sample ProcessingHow are samples collected and processed?

The sample collection process is carefully monitored to ensure that the integrity of the doping control process is preserved. USADA Doping Control Officers work to: ensure successful testing experiences for athletes, reduce chances for sample contamination, and maintain the security of the sample. All athletes are observed during the actual provision of the sample.
Athletes are encouraged to have an Athlete Representative accompany them throughout the doping control process, except during the provision of the sample.
The sample is then split between two bottles, labeled A and B with a unique sample code number. The Doping Control Officer provides the athlete with instructions on how to inspect the sample collection kit, distribute the sample between the A and B bottles, secure the samples and complete the paperwork.
VIDEOS
Click on a video link below to learn more.
Witnessing Video
WITNESSING VIDEO
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Windows Media
Windows Media
Windows Media
QuickTime
QuickTime
QuickTime
Processing Your Sample Video
PROCESSING YOUR SAMPLE VIDEO
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Windows Media
Windows Media
Windows Media
QuickTime
QuickTime
QuickTime
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