Hillary Clinton admitted to hospital with blood clot Updated 9:01 p.m. Secretary of State Hillary Clinton has been admitted to a hospital with a blood clot following a concussion she suffered several weeks ago. A spokesperson, Philippe Reines, said in a statement the clot was discovered during the course of a follow-up exam. There has been no announcement yet on the location of the clot. "She is being treated with anti-coagulants and is at New York-Presbyterian Hospital so that they can monitor the medication over the next 48 hours," Reines said. Doctors are expected to make a determination shortly about whether any further action is required, Reines said, adding that doctors will continue to assess Clinton's condition, "including other issues associated with her concussion." Clinton was expected to return to work next week, almost three weeks after being sidelined by the concussion. The secretary of state had been recuperating at home. The former first lady and senator, who had always planned to step down as America's top diplomat in January, is known for her grueling travel schedule. She is the most traveled secretary of state in history, having visited 112 countries while in the job. The secretary of state's husband, former President Bill Clinton, suffered from heart disease and underwent successful quadruple bypass surgery in 2004 at Columbia Presbyterian Medical Center in New York City. In 2010, Bill Clinton had two coronary stents implanted in his heart after being hospitalized for chest pain.