Sergeeva's failure to clear the dope test has definitely jeopardized the issue.
The news came a few hours after hundreds of Russian fans roared in celebration when teenage figure skater Alina Zagitova delivered their team's first gold medal.
Alexander Krushelnitsky and Anastasia Bryzgalova celebrate after winning the mixed doubles curling bronze match.
He also refused to comment in response to two questions about a boycott of next month's International Biathlon Union World Cup Finals in Tyumen in Russian Federation by athletes from United States, Canada and Czech Republic.
A Court of Arbitration for Sport panel met on Saturday to hear her case following her failed test.
Russian Federation had been banned from participating as a nation in this year's winter games after investigators said they uncovered a vast and government-sanctioned doping program to boost the country's competitors during the 2014 games, AP reports.
The World Doping Agency banned Trimetazidine (heart medication) since it also affects metabolism.
On February 23rd, it was announced that Nadezhda Sergeeva, a Russian bobsledder, tested positive for a banned heart medication.
Meanwhile, members of the United States biathlon team have announced that they will not take part in next month's World Cup final - because it is being staged in Russian Federation. I know the USA and Russia have this little rivalry going right now, seeing as they meddled in our election and what not, but I kind of have to respect the fact that these Russian athletes just do loads and loads of steroids with no regard for human life.