Kornelia Marek tested positive for the blood-boosting drug EPO after helping Poland finish sixth in the women's 20-kilometer relay on Feb. 25. She also competed in the 30K mass start, 10K freestyle and 15K pursuit.
Speaking on Polish television Thursday, Marek denied taking banned substances and said she is waiting to find out the results of her backup "B" sample that was taken during the Games.
"I hope it will be negative," Marek said. "I was never taking any banned substances."
If Marek is found guilty of doping by the International Olympic Committee, she would stripped of her results from the Vancouver Games. The relay team could also be disqualified.
The IOC conducted more than 2,000 drug tests during the Vancouver Games.
-- Austin Knoblauch
Photo: Kornelia Marek. Credit: Jacek Bednarczyk / EPA