Sounds like the other posted message proposes a silly hypothesis. Typically contrarian in a board where such behavior is rampant, such conspiracy theories are really over the edge.
One second of critical thinking tells you the theory is worthless.
So how common are hyperbaric chambers in trauma centers?
I know the Navy brought some to the hospital (the carrier took a chunk out of a pedestrian walkway), but what would happen if they needed one and one wasn't there?