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.
This case report shows that provocative angiography can be a useful adjunct in patients that have several episodes of undiagnosed bleeding. Case Report. The authors describe a case of a 62-year-old man who had been bleeding through the rectum for 12 hours and had lower abdominal pain.