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Social Events And Charity Fundraising: Discuss 12 Hours at 3 Metres in the General Diving Forums forums: Oh,dont forget the Cardiac effects of prolonged immersion,combined with potential hypothermia/dehydration. Dont try climbing up that ladder ...

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Old 19-12-07, 02:21 PM
wathdoc wathdoc is offline
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Oh,dont forget the Cardiac effects of prolonged immersion,combined with potential hypothermia/dehydration. Dont try climbing up that ladder now!
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Old 19-12-07, 02:23 PM
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Originally Posted by wathdoc
Oh,dont forget the Cardiac effects of prolonged immersion,combined with potential hypothermia/dehydration. Dont try climbing up that ladder now!
Go on.....
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Old 19-12-07, 02:31 PM
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The Beach Book. Printed on waterproof paper. Collection of short stories. They also do Aqua Erotica. Ahem.
What a great idea....and if his drysuit has a P-Valve then he can crack one off and flush out with a quick wizz afterwards.....I just feel sorry for anyone using the pool afterwards!!
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Old 19-12-07, 02:35 PM
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What a great idea....and if his drysuit has a P-Valve then he can crack one off and flush out with a quick wizz afterwards.....I just feel sorry for anyone using the pool afterwards!!
Nice!!!
Noticed your new avatar. Might have to remove those greens
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Old 19-12-07, 02:37 PM
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I thinking of this hazily as I was up early and I've had nowhere near enough coffee but if you are breathing air won't nitrogen be a problem in the slow tissues over 12 hours?

Hmm...possibly not as your ppN2 won't be high enough.
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Old 19-12-07, 03:41 PM
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Originally Posted by scubagit
Sounds lovely, Maybe barrier cream might do the trick on hands and face .
...Goose Fat....?
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Old 19-12-07, 05:04 PM
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Originally Posted by scubagit
Nice!!!
Noticed your new avatar. Might have to remove those greens
Aww....but this is me the morning after....so....fancy some eggs with your potato bread?
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Old 19-12-07, 06:19 PM
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There are people who do ten or twelve hour cave dives. They're in drysuits.

Janos
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Old 19-12-07, 08:17 PM
wathdoc wathdoc is offline
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Although mainly a problem in head out immersions there is a tendency to pool blood centrally(chest especially),with associated increased cardiac output,and peeing. The problems occur when rescued,the bllod volume has been reduced but supported by the increased density(the water). So when you get out,there is a loss in hydrostatic support,the Arterial blood pressure can drop,with unconsiousness and Cardiac arrest. Thats why I understand that when people are rescued from lengthy immersions,they are got out horizontally. As I said this is especially true in head out immersions,but when you get out,either get lifted out horizontally,or very very slowly vertically. I suspect the main problem you will get if fit,is dizzyness.It may be worth while having some salt replenishment in drinks,as you would when dehydrated. Get checked out by your GP,look for postural hypotension. Its all guesswork,but take care,and good luck.
Last edited by wathdoc : 19-12-07 at 08:22 PM.
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Old 19-12-07, 08:45 PM
David Tombs David Tombs is offline
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Yes there is a little on this in the BSAC Dive leader course. This pooling is what makes us pee when we dive.
I would really be interested how you managed to concentrate etc during the dive and what emotional effects you notice
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