When they set up the 'injection port' in your arm for the contrast fluid, a lot of males tend to pass out or go 'vegal' as the medical professionals call it.
I learned what the term meant when I came to. Apparently I was only passed out for a few seconds.
The nurse was looking at me saying "are you doing OK?" While I was feeling dizzy, I replied "I'm doing OK."
When I came to, I realized I was on my back and in a different part of the room.
Good times...
Excerpt from Robert Crais' "The Monkey's Raincoat:" "She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."