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(In reply to your message dated Sunday 28, May 1995) For the folks that missed my post that Rich mentioned, it was in reply to a point that was originally posted by him concerning the 'feelings' attributable to high Po2's that were not considered 'classic' symptoms. I have only been in this situation on one occasion that I could DEFINATLEY say that something felt odd. This was during the final decompression phase of a 90metre (285 ft) Trimix dive. At the final stop 6 metre (20ft) stop I had been on O2 for around 7-8 minutes. I suddenly began to feel as though something was amiss. It began by me feeling a little 'spaced', symptoms very reminiscent of the onset of what Rich describes as 'warm narcosis'. A quick glance at my gauges revealed that I had descended slightly to 8metres (Po2 1.8). Upon ascending to 1.6 the feeling remained for a few minutes before subsiding to almost non existant following an air break on Eanx 32. This was thought to be originally due to spatial disorientation due to the team being 'in the blue' with the exception of being able to see the surface. However I am now adamant that this was due to an increase in Po2, even though no phsical exertion was present. Just my two cents......... Regards Chris --------------------------------------------------------------------------- Chris Hellas EMail:- chris@de*.de*.co*.uk* 10422,2334@co*.co* Voice:- (U.K) 01274 878944 ---------------------------------------------------------------------------
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