An arterial blood gas (ABG) test measures the levels of oxygen and carbon dioxide in the blood to determine how well your lungs are working.
Conway Twitty died from an abdominal aortic aneurysm. He died on June 5, 1993 in Springfield, Missouri at the Cox South Hospital.
Ramsey on Monday denied the reports that they are dating. He said that he and Twitty have a special friendship based on tragedy. Ramsey's wife and JonBenet's mother, Patsy Ramsey, died last June of ovarian cancer at the age of 49. Twitty was officially divorced from George Jug Twitty in December.