A family member told NBC News he was resting comfortably while doctors evaluated his condition.
No further information was immediately available, including when he was admitted to the hospital.
Cheney has had four heart attacks, starting when he was 37 years old. He has had quadruple bypass surgery and two artery-clearing angioplasties. In 2001, he had a special pacemaker implanted in his chest. The pacemaker's battery was replaced in 2007, and then the entire device was replaced. In 2007 he also had an abnormal heart rhythm in 2007 and an electric shock was given to restore a normal rhythm.
In 2005, he had surgery to repair an arterial aneurysm on the back of each knee.
In October 2008, Cheney was hospitalized for treatment of an atrial fibrillation, an abnormal rhythm involving the upper chambers of the heart. A White House spokesman said an electric shock was administered at a Washington hospital. (continues here)