An experience in how to get faster attention, not sure if you can use or not --
I took a tumble in a trail race, nasty cut in the vicinity of my right eyebrow, lots of blood. I got delivered to the ER, where my mistake was answering a question honestly (I said the pain level was maybe 2 or 3 on the 1-10 scale).
So they parked me in an alcove with a handful of gauze to hold over the wound. Sat there for about 45 minutes to an hour. At which point, the handful of gauze now being fully saturated with blood and starting to drip, I walked over to the nurses' station to get some more gauze.
The key thing, not that I planned it, was leaving a trail of blood across the ER floor. That got their attention. Two or three nurses down on their knees cleaning it up immediately. And I had a doc checking me out within 5 minutes (and putting in about 40 stitches)... :-)
Gruesome story, wholly appropriate for Halloween, and worth a page in the "Navigating in the Triage" chapter of The Orienteer's Manual.
So let's get out there and scare some people. :)