To detect the presence of blood transfusions and haemoglobin-based oxygen carriers (HBOCs) and to monitor selected parameters, two tubes of 3 mL of blood will be collected from the athlete. To test for hGH, two tubes of 5 mL of blood will be collected from the athlete.
Typically, an athlete would be providing two tubes of blood. While unlikely, it is possible that an athlete might be required to provide four tubes of blood.
The volume of blood collected for the purposes of doping control would not have an impact on the athlete’s performance.