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.
Dept, how long to wait from the drink to the scan depends on what we're looking for. E.g., for possible ruptured appy, that contrast has to move down south aways before it highlights the area of interest -- thus the increased drink-to-scan time. For other CT scans, the drink-to-scan time can be as short as 1/2 - 1 hr.