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Hi Everyone, On the subject of IWR with O2, you can run a full Edmonds treatment while you wait for/arrange transport or give the chamber time to set up. According to Edmonds you can interupt the treatment without worsening the symptoms, so even if the delay *might* be 3 hours, you can start it, and then stop when help arrives. Oh and someone also mentioned that it is a *good idea* to give the sick diver to the experienced and trained emergency support personel who come with the chopper. Hmm not always. A company I was working for called up for medical advice after a diving accident. They had the patient/diver *in a chamber* at 60fsw pressure, on oxygen when a chopper arrived. Seems that someone had alerted them becuase of the call. They wanted to *take the diver out* of the company chamber and transport him by unpressurised helicopter to the chamber at the local hospital!!!!!!!!!!!! They were told to "get stuffed" and sent on their way. This could be the standard of "trained and experienced" staff you may be handing your mate to. Think about it. Oh, and Oliver Edwards mentioned that he wasn't given O2 in the emergency room. Prince Henry Hospital, Sydney's local Hyperbaric facility has *no provision* to supply 100% oxygen in the emergency room. Rodney [dec1] mentioned waiting there on a mask. I was there, the mask was a normal constant flow hospital type, loose fitting, without flapper valves, rebreather bags, without anything. It just dumped 12 litres/minute near Rodney's mouth. Lippman says this type of mask delivers between 25 and 35% oxygen. When you consider that air has 21% *anyway*, then that is only 4-14% more O2, virtually nothing. Lippman goes on to say "Constant flow systems are not nearly as effective as demand systems for most diving injuries..." We asked for a more appropriate system and were told they didn't have it, when we tried to use our own system (demand O2) we were told we couldn't have it in the ward. Oh while I was composing this Richard Pyle wrote; "We each need to make that call for ourselves. I've seen the miracles that IWR can produce, so for me it's half an hour. For others, it may be 2 or 4 or 6 hours." Richard, if you dive in Sydney you would only use IWR on that basis, see Rob Cason's description of a 2+ hour wait with a sick diver, which took place even after giving the chamber over an hour of warning. Cheers Jason (Warm and Dry)
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