Vice President Dick Cheney was taken to George Washington Hospital early Monday experiencing shortness of breath, a spokeswoman said. He was released four and a half hours later.
Cheney spokeswoman Lea Anne McBride said Cheney was taken to the hospital at 3 a.m. He was released about 7:30 a.m. Doctors found his EKG, or electrocardiogram, unchanged and determined he was retaining fluid because of medication he was taking for a foot problem.
Cheney, who has a long history of heart problems and has a pacemaker, was placed on a diuretic at the hospital.
The foot ailment forced Cheney to use a cane on Friday.
McBride said the foot condition was not related to surgery last September to repair aneurysms behind both knees or the 64-year-old vice president's lengthy history of heart problems. He has had four heart attacks, quadruple bypass surgery, two artery-clearing angioplasties and an operation to implant a special pacemaker in his chest.
A side effect of some anti-inflammatory medications is fluid retention, which can cause swelling and shortness of breath and strain the heart muscle.
Fluid can also leave the circulatory system and accumulate in various parts of the body, including the lungs, which can cause a shortness of breath.
The condition is usually treated with a diuretic.
Cheney has a long history of health problems and suffered his first heart attack in 1978 when he was 37. Ten years later, after his third heart attack, he had quadruple bypass surgery to clear clogged arteries.
Cheney, who has not suffered a heart attack since he became vice president in 2001, began a daily exercise program in 2000 and started eating healthier.
He quit smoking in 1978 and takes medication to lower his cholesterol.
