ROCHESTER, Minn., Dec. 8 (AP) - The Rev. Billy Graham is recovering at the Mayo Clinic after a shunt that drains fluid from his brain was adjusted, a spokesman for the evangelist said.

The procedure was performed Wednesday during follow-up tests and procedures this week following Graham's three-month stay at the clinic in the summer, said A. Larry Ross, a Graham spokesman.

"He's been walking and eating, and he's in good spirits," Ross said Thursday. "The doctors anticipate he'll be out in a few days and he's looking forward to being home for the holidays."

The shunt relieves fluid pressure on his brain, a condition called normal pressure hydrocephalus. Ross said tests performed this week found that the shunt wasn't working as efficiently as it should.

"This was not an emergency situation; Mr. Graham was not in any danger," Ross said. "After a diagnostic test, doctors decided to modify the shunt to get it to be 100 percent operative."

Graham, 82, who also suffers from Parkinson's disease, is expected to be released in a few days.