Quote: (Originally Posted by
bluedjango1)
when I had my shop outside of Philly, one of my closest friends and top anesthesiologists in the city said this when discussing rebreathers, "rebreathers at 1 ATA are very simple... I have been using them for the past 20 years. Where it becomes complex is when we change the absolute pressure, that is the tricky part..."
ok, not an exact quote, but pretty close
are rebreathers tricky at the surface?
how many of his patients struggle with gear, swim against currents and surface swells, climb moving ladders carrying heavy equipment, pull themselves along drag lines - whilst being treated?
How many of his patients are the ones in charge of monitoring and maintaining their ppo2 during treatment?
theres more going on on the surface and it can be quite an exersion - ppo2 drops faster on surface and theres often more task loading (think bad sea conditions, swells, heavy gear, fighting to pass up equipment, climb ladders etc - so you combine need for more frequent monitoring with a time of increased task loading....not a good combination! especially if you have a Rebreather with a crap setpoint controller or O2 turned off (has killed at least one) or RB not turned on (has killed another) At 150m depth even with O2 turned off and unit turned off the dil will keep you alive for yonks - on the surface you have very little time