WASHINGTON (CBSNewYork/AP) - Secretary of State Hillary Rodham Clinton is speaking with staff and reviewing paperwork while she continues to recover from a blood clot in her head, according to the State Department.

Clinton has been “quite active” on the phone Wednesday with State Department aides, spokeswoman Victoria Nuland said. Nuland said doctors will continue to monitor her progress.

Clinton was admitted to New York Presbyterian Hospital Sunday and is being treated with blood thinners to dissolve a clot in the vein behind the right ear.

Doctors found the clot during a follow-up exam stemming from a concussion she suffered in early December.

Former President Bill Clinton has been seen driving to and from his wife’s side at the Washington Heights hospital over the past few days.

The anxiety over Secretary Clinton’s condition, experts said, is akin to seeing that road obstruction you just avoided in the rear view mirror. It isn’t a threat anymore, but it underlines just how bad things could have been.

“It can cause a stroke. It can be fatal. It can also lead to seizures–to epilepsy,” said neurosurgeon Dr. Ezriel Kornel.

On Tuesday morning, an apparently relieved Chelsea Clinton tweeted an upbeat message: “Thanks to you all for sending good thoughts my mom’s way. Grateful to all her doctors that she’ll make a full recovery.”

Clinton’s doctors said she did not suffer a stroke or any neurological damage, and that she has been making great progress. They expect she will make a full recovery.

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