Rush Limbaugh is interviewed Jan. 18 on the sidelines before the start of the AFC championship game in Pittsburgh.
HONOLULU (AP) -- Conservative talk show host Rush Limbaugh remained hospitalized in Hawaii Thursday after experiencing chest pains similar to a heart attack, according to the guest host on his nationally syndicated radio show.
Limbaugh was rushed to a Honolulu hospital Wednesday during a vacation.
On the radio show Thursday, guest host Walter E. Williams described Limbaugh's pains as similar to the feeling of a "heart attack coming on." He said doctors haven't confirmed whether the 58-year-old had a heart attack, and more exams were planned Thursday.
Williams said any information about the cause of the pain would have to come from Limbaugh himself.
"He's doing very well and he appreciates your prayers and concerns," Williams said, asking callers to just say "dittos" for their well-wishes and get on to questions on political and social issues.
"Rush is in good, stable condition and as comfortable as one can be in a hospital while on vacation, but he's in good hands," he said.
Williams, an economics professor at George Mason University, was already scheduled to fill in on Thursday while Limbaugh was on vacation.
A spokesman at The Queen's Medical Center, Steve Uieno, said he could provide no information on Limbaugh.
Kit Carson, Limbaugh's chief of staff, told The Associated Press Limbaugh left for his Christmas vacation on Dec. 23 and was due to return to his show Jan. 4. Carson didn't have any information on whether that schedule would change.
Limbaugh broadcasts from a studio near his mansion in Palm Beach, Fla.
Honolulu television station KITV reported that paramedics took Limbaugh to The Queen's Medical Center in serious condition from the Kahala Hotel and Resort.