AG(?) had an unconscious or toxing student at depth that needed to be saved?
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Here's an example of how to do it right. AG actually saved one of his student's a number of years back like this.
YouTube - toxing diver rescue
If the reg is in the victims mouth, leave it in there. If not, then CONSIDER (depth, distance to exit, ascent time, etc) getting another reg in their mouth, but don't swap it out. There are times when getting a reg into their mouth will just slow down the process.
AG(?) had an unconscious or toxing student at depth that needed to be saved?
In the video, it looks like the toxing diver is carrying some type of deco gas. What training scenario is this video filming; divers with a ceiling or diving recreationally? If it were the former, I can see why the new regulator was placed in the divers mouth though the priority is to get that diver to the surface safely! Even if it means shooting an emergency bag and having surface support take him (if you still had extensive deco remaining). The latter scenario does not demand replacing the divers regulator with a new one, just holding it in place (if its still in) and keeping the airway clear upon ascent (see above). That said, dealing with a toxing diver is a bit of an interesting story as some recommend waiting until the seizure stops and others say just bring them up.
Finally, whether or not you are diving doubles makes a huge difference. With singles, you can control the diver easily by locking your knees around the tank and then using the inflator to manage the ascent speed. You can't do that with doubles, and managing the diver is much more challenging.
What's the best approach then to surface an unconscious diver on doubles?
Thx,
J
If you read the account of Andrew's rescue, you will see that this must have happened, given the amount of time the rescue took and the lack of consequences for the diver.