Some states award delegates to candidates on a winner-take-all basis, meaning that the candidate with the most votes in a state is awarded all of that state's delegates. Other states award delegates in proportion to each candidate's share of the primary vote.
Provocative angiography involves a full diagnostic angiogram followed by administration of intra-arterial procoagulant agents to identify an occult bleeding source in patients who have normal test results after lower gastrointestinal bleeding.
Angiography is an x-ray study of the arteries. This procedure involves injecting a contrast material (x-ray dye) into a blood vessel to make it visible on an x-ray.he procedure is often used to detect abnormalities of the blood vessels, such as narrowing and blockage caused by fatty deposits or blood clots, and aneurysms (defined as weakening or ballooning of the wall of the artery).