predestination - previous determination as if by destiny or fate. doom, doomsday, end of the world, day of reckoning - an unpleasant or disastrous destiny; everyone was aware of the approaching doom but was helpless to avoid it; that's unfortunate but it isn't the end of the world.
That is 2 1/2 hours! Average is 3 hours now from start to finish. THEN we have to wait for the scan to be sent to the radiologist, and when he/she calls back, we can dispo the patient. I can't believe that every CT done in this country for a possible appy or whatever takes over 3 hours.
Most CT scans require you to have intravenous contrast medium (dye) which is given via a cannula which we place in your arm or hand prior to the scan. CT scans are not usually long examinations â the scan itself takes about 15 minutes but the preparation (drinking water and being cannulated) takes time as well. You may require a blood test before we can give you contrast medium.