Quote: (Originally Posted by Sutty)
Punching out gas every 10m may be excessive - if the victim has a reasonably high FO2 in the lungs they at least have some O2 "reserve" to delay the onset of hypoxia - it would be a shame to remove all of this. I'd suggest expelling gas initially and then each time you halve the depth until 5m, this correlates better with the gas expansion in the lungs.
Neil
Hi Neil,
Thanks for the comments.
"Every 10m" is to simplify the procedures as much as possible. For some people it's too often, for some others not often enough.
Expelling gas each time you halve the depth is maybe slightly too complex for a highly stressed rescuer who has to remember and perform everything...
Cheers