Secretary of State Hillary Rodham Clinton was released from a New York hospital on Wednesday, three days after doctors discovered a blood clot in her head.

Clinton's medical team advised her Wedneday evening that she was making good progress on all fronts and said they are confident she will fully recover, said Clinton spokesman Philippe Reines. Doctors had been treating Clinton with blood thinners to dissolve a clot in a vein that runs through the space between the brain and the skull behind the right ear.

"She's eager to get back to the office," Reines said in a statement, adding that the secretary and her family are grateful for the excellent care she received at New York-Presbyterian Hospital.

Reines said details of when Clinton will return to work will be clarified in the coming days.

Clinton had been in the hospital since Sunday, when doctors discovered the clot during a follow-up exam stemming from a concussion she suffered earlier in December. While at home battling a stomach virus, Clinton had fainted, fallen and struck her head, a spokesman said.

"Grateful my Mom discharged from the hospital and is heading home," the secretary's daughter, Chelsea, wrote on Twitter. "Even more grateful her medical team (is) confident she'll make a full recovery."

Earlier Wednesday, the State Department said Clinton had been speaking by telephone with staff in Washington and reviewing paperwork while in the hospital.

"She's been quite active on the phone with all of us," said State Department spokeswoman Victoria Nuland.

Before being released from the hospital, Clinton was photographed Wednesday getting into a black van with her husband, Bill, Chelsea and a security contingent to be taken elsewhere on the sprawling hospital campus. The last time Clinton had been seen publicly was on Dec. 7.