DOCTOR SAYS NIXON'S CONDITION WORSENS.(MAIN)

Byline: Associated Press

NEW YORK Former President Richard Nixon took a turn for the worse and was returned to intensive care Tuesday, a day after a stroke left him paralyzed on most of his right side and unable to speak, his doctor said.

Nixon was suffering from swelling of the brain as a result of the stroke he suffered Monday, said Dr. Fred Plum.

``His prognosis is guarded. The next 72 hours are a critical period,'' he said.

Earlier in the day Nixon, 81, had been moved into a private room at NewYork Hospital.

Nixon's internist, Dr. Michael Giordano, said then that the former president was out of grave danger and described …