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.
1 An angiogram is a specific type of CT scan with contrast. 2  In a CT angiogram the contrast is timed so that it will highlight either the arteries or veins (venogram) of interest. 3  For instance, a CT angiogram of the chest to evaluate for PE will have the timing set so the contrast is present in the pulmonary arteries. There are three broad kinds of contrast available: IV, PO, and PR (rectal). 2  IV contrast is either gadolinium for MRI or iodinated contrast for CT. 3  PO contrast for all ER and inpatient CT scans is dilute iodinated contrast (same agent used for IV contrast in CT).