Blood doping can be done in two ways, as described. Which method is listed as one of those described methods?

Blood doping can be done in two ways, as described. Which method is listed as one of those described methods?

• A. Transfusion of someone else's blood
• B. Taking anabolic steroids
• C. Hydration optimization
• D. Vitamin supplementation

Answer: (A)

Blood doping is about increasing how well the body can transport oxygen by boosting red blood cell mass. Transfusing blood from another person directly adds more red cells and hemoglobin, which raises the oxygen-carrying capacity available to working muscles and can enhance endurance. That direct increase in red blood cells is why this option fits the description of a blood-doping method. The other choices don’t increase red blood cell mass: anabolic steroids mainly affect muscle size and strength, hydration optimization changes plasma volume with less impact on the actual oxygen-carrying capacity, and vitamin supplementation typically doesn’t raise red blood cell count unless there’s a deficiency. (A second described approach in general terms is to stimulate red blood cell production, such as with erythropoietin, but that isn’t shown among the options.)

Blood doping is about increasing how well the body can transport oxygen by boosting red blood cell mass. Transfusing blood from another person directly adds more red cells and hemoglobin, which raises the oxygen-carrying capacity available to working muscles and can enhance endurance. That direct increase in red blood cells is why this option fits the description of a blood-doping method. The other choices don’t increase red blood cell mass: anabolic steroids mainly affect muscle size and strength, hydration optimization changes plasma volume with less impact on the actual oxygen-carrying capacity, and vitamin supplementation typically doesn’t raise red blood cell count unless there’s a deficiency. (A second described approach in general terms is to stimulate red blood cell production, such as with erythropoietin, but that isn’t shown among the options.)