Sen. John Warner (R-Va.) was admitted to Virginia’s Inova Fairfax Hospital this afternoon and treated for a heart ailment.

Warner’s chief of staff, Carter Cornick, said his condition did not appear to be any more serious than an irregular heart beat, and his office issued a statement saying doctors believe the retiring five-term Senator “will be home this weekend and back to work next week.”

“He’s 100 percent himself,” said Cornick.

Though Warner took part in his regular schedule this morning, he went to the Office of the Attending Physician mid-morning. That office made an appointment for him at Inova Fairfax Hospital later in the day. Warner returned to his office for additional meetings before heading to the hospital, where he was admitted and treated for atrial fibrillation.

The condition causes “poor blood flow to the body and symptoms of heart palpitations, shortness of breath and weakness. Most people with atrial fibrillation have an increased risk of developing blood clots that may lead to stroke,” according to the Mayo Clinic Web site.

Warner will undergo a second “routine” procedure tomorrow, according to his office.

Warner announced in August that he would not seek a sixth term in 2008.