The "tech" took three attempts to plant the IV for the contrast. That was the worst part. It was 45 minutes in the tube. I learned after the procedure ended that the machine has sensors to try to time breathing. The techs failed to mention that. They got a "live" demo of apnea and hypopnea. I just snoozed through the noise, but my breathing was sometimes too shallow for the detectors. Hopefully that didn't negatively impact the data collection. The helium pump had a very constant thump, thump, thump from the ceiling. Lots of "take a deep breath, exhale, take a deep breath and hold" followed by lots of pulsing noises of various frequencies. One of the samples was reaching my limit of oxygen (I'm stage 3 iron deficiency anemia). All done now. The IV sites bled like a stuck pig.
Topped off with a nice pint of Wallace Irish Light Red Ale and a gluten free "Good Ol' Boy" pizza at McKenzie River Pizza.