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Scuba Forum / General / August 2004Oxygen-induced seizure?
I work at a hospital in Virginia Beach where we essentially get any and all dive-related emergencies from our area of the mid-atlantic. I recently cared for a diver that was diving on the Monitor. 230 ft max depth, 15 min BT on Trimix. He ascended to 60 ft for his first deco. Instead of grabbing his Nitrox 50/50 reg, he grabbed his 100% O2 reg. After breathing this for approx. 5 minutes he seized. His buddy rapidly ascended him without further deco time. Needless to say when this guy finally arrived to the hospital, he was well and truly f'ed up. I didn't know if breathing 100% O2 would initiate a seizure or not. The HBO doc wasn't sure either. Any thoughts? Doc H > I work at a hospital in Virginia Beach where we essentially get any and > all dive-related emergencies from our area of the mid-atlantic. I recently [quoted text clipped - 7 lines] > I didn't know if breathing 100% O2 would initiate a seizure or not. The > HBO doc wasn't sure either. Any thoughts? Absolutely. Breathing high PP of O2 induce a seizure. It wasn't just pure O2, it was pure O2 at nearly 2 atmospheres. It would have been suprising if he *hadn't* toxed. Any doctor treating hyperbaric injuries should know this. If nothing else, you guys need to post DAN's telephone number in your ER for diving related accidents. Alan > Any doctor treating hyperbaric injuries should know this. If nothing > else, you guys need to post DAN's telephone number in your ER for > diving related accidents. That info can be found here: http://diversalertnetwork.org/contact/index.asp Diving Emergencies (Remember: Call local EMS first, then DAN!) 1-919-684-8111 1-919-684-4DAN (collect) 1-800-446-2671 (toll-free) +1-919-684-9111 (Latin America Hotline) > ? I work at a hospital in Virginia Beach where we essentially get any and > ? all dive-related emergencies from our area of the mid-atlantic. I recently > ? cared for a diver that was diving on the Monitor. 230 ft max depth, 15 min > ? BT on Trimix. He ascended to 60 ft for his first deco. Instead of grabbing > ? his Nitrox 50/50 reg, he grabbed his 100% O2 reg. After breathing this for > ? approx. 5 minutes he seized. His buddy rapidly ascended him without further > ? deco time. Needless to say when this guy finally arrived to the hospital, he > ? was well and truly f'ed up. > ? > ? I didn't know if breathing 100% O2 would initiate a seizure or not. The > ? HBO doc wasn't sure either. Any thoughts? > ? [quoted text clipped - 3 lines] > pure O2, it was pure O2 at nearly 2 atmospheres. It would have been > suprising if he *hadn't* toxed. WRONG, at 20m (66ft) he would have been at 3 BAR (atmospheres) absolute pressure not 2. Don't forget the 1 BAR we are all at even at the surface! Do the Nitrox course and LEARN your partial pressures. Sea-Level=1 BAR 10m in salt water = 2 BAR 20msw =3 BAR For recreational diving, the maximum reccomended PPO2 for bottom gas =1.4 For decompression gas max partial pressuer of O2 should be 1.6 (100% O2 at 6m / 20ft) For military use a max PPO2 of 2.0 (100% at 10m / 33ft). Higher PPO2 may be used in recompression chambers under direct medical supervision only. > Any doctor treating hyperbaric injuries should know this. If nothing > else, you guys need to post DAN's telephone number in your ER for > diving related accidents. > > Alan >From: "TonyH" tony@samesamediving.com >For recreational diving, the maximum reccomended PPO2 for bottom gas =1.4 What a pussy. Popeye "If one does as God does enough times, one will become as God is." -Dr. Hannibal Lector. > >For recreational diving, the maximum reccomended PPO2 for bottom gas =1.4 > What a pussy. Put me in for team pussy. Curtis > Put me in for team pussy. I love it. Put my name on that team too. al Meeyow! > > Put me in for team pussy. > > I love it. Put my name on that team too. > > al > > ? > > [quoted text clipped - 4 lines] > WRONG, at 20m (66ft) he would have been at 3 BAR (atmospheres) absolute > pressure not 2. Don't forget the 1 BAR we are all at even at the surface! You're correct. I neglected to say 2 atmospheres *above* normal (now take a pill, will ya) > Do the Nitrox course and LEARN your partial pressures. Feesh, meet Tony. Tony, meet Feesh. You two should get along famously. > Sea-Level=1 BAR > 10m in salt water = 2 BAR [quoted text clipped - 4 lines] > 6m / 20ft) > For military use a max PPO2 of 2.0 (100% at 10m / 33ft). Funny, my contacts in the military tell me they're trying to lower the PPO2 exposure to their divers. Or do you somehow think military divers are less susceptable to OTox than non-military divers (hint, it's the opposite). > Funny, my contacts in the military tell me they're trying to lower the > PPO2 exposure to their divers. > > Or do you somehow think military divers are less susceptable to OTox > than non-military divers (hint, it's the opposite). Nope, it's that the navy divers have to do what they're told, in which the mission is more important then the person. "I was just following orderssssss arrgh" > > Funny, my contacts in the military tell me they're trying to lower the > > PPO2 exposure to their divers. [quoted text clipped - 4 lines] > Nope, it's that the navy divers have to do what they're told, in which the > mission is more important then the person. That's true, but a toxed diver can't complete his mission, and may even tie up another diver trying to rescue him. > "I was just following orderssssss arrgh" > Funny, my contacts in the military tell me they're trying to lower the > PPO2 exposure to their divers. > > Or do you somehow think military divers are less susceptable to OTox > than non-military divers (hint, it's the opposite). 10-4.5 Dives Exceeding the Normal Working Limit. The EAD Table has been developed to restrict dives with a ppO2 greater than 1.4 ata and limits dive duration based on CNS oxygen toxicity. Dives exceeding the normal working limits of Table 10-1 require the Commanding Officer's authorization and are restricted to surfacesupplied diving equipment only. All Equivalent Air Depths provided below the normal working limit line have the maximum allowable exposure time listed alongside. This is the maximum time a diver can safely spend at that depth and avoid CNS oxygen toxicity. Repetitive dives are not authorized when exceeding the normal working limits of Table 10-1. Also, the setpoint for US Navy CCR's is mandated at .75 ATA. > I work at a hospital in Virginia Beach where we essentially get any and >all dive-related emergencies from our area of the mid-atlantic. I recently [quoted text clipped - 7 lines] > I didn't know if breathing 100% O2 would initiate a seizure or not. The >HBO doc wasn't sure either. Any thoughts? f.cking Troll - Steve Barlow "Profanity is the linguistic crutch of inarticulate motherf..kers"Airhog > I work at a hospital in Virginia Beach where we essentially get any and > all dive-related emergencies from our area of the mid-atlantic. I recently [quoted text clipped - 7 lines] > I didn't know if breathing 100% O2 would initiate a seizure or not. The > HBO doc wasn't sure either. Any thoughts? The maximum operating depth for 100% O2 is 20 ft. Anything deeper than that will exceed the partial pressure O2 and there is an increasingly substantial chance of o2 induced seizures. [diver] ascended to 60 ft ... grabbed his 100% O2 reg. After breathing this for >approx. 5 minutes he seized. ... .. > I didn't know if breathing 100% O2 would initiate a seizure or not. The >HBO doc wasn't sure either. Any thoughts? > >Doc H BULLSHIT. Any Doctor of Medicine should and would know this. (Yes, breathing 100% oxygen at approximately three atmospheres pressure will caue a seizure. The diver is/was probably bent, too.)  SignatureCharlie Hammond -- Hewlett-Packard Company -- Ft Lauderdale FL USA (hammond@not@peek.ssr.hp.com -- remove "@not" when replying) All opinions expressed are my own and not necessarily my employer's. >BULLSHIT. Any Doctor of Medicine should and would know this. > >(Yes, breathing 100% oxygen at approximately three atmospheres pressure >will caue a seizure. The diver is/was probably bent, too.) Should know?....yes...WOULD know?.... Well I dont know about that...Ive meet and heard close hand of some prettyd damn stupid/incompetent/egomaniacal doctors in my not so long days.... take care Blll > >BULLSHIT. Any Doctor of Medicine should and would know this. > > [quoted text clipped - 8 lines] > > Blll What do you call someone who graduated from medical school at the bottom of his class? >> Blll > >What do you call someone who graduated from medical school at the bottom of >his class? Rec dot scuba poster ?:) take care Blll > >> Blll > > > >What do you call someone who graduated from medical school at the bottom of > >his class? > > Rec dot scuba poster ?:) Doctor >> >his class? >> >> Rec dot scuba poster ?:) > >Doctor I knew that :) I just thought my answer was more topical :) take care Bllll > > >> Blll > > > [quoted text clipped - 5 lines] > > Doctor I was going to guess "Mr. President" but then I remembered that Bush went to biz school, not med school. > > > >> Blll > > > > [quoted text clipped - 9 lines] > I was going to guess "Mr. President" but then I remembered that Bush went to > biz school, not med school. Are you sure? He named body parts for VP: dick chin knee. >> >BULLSHIT. Any Doctor of Medicine should and would know this. >> > [quoted text clipped - 12 lines] >What do you call someone who graduated from medical school at the bottom of >his class? Mal. Mal Practice, MD Signaturedillon When I was a kid, I thought the angel's name was Hark and the horse's name was Bob. > I didn't know if breathing 100% O2 would initiate a seizure or not. The >HBO doc wasn't sure either. Any thoughts? Here are my thoughts: Get another HBO Doc and stop calling yourself 'Doc', Doc. Any nitwit with a medical degree( and many without ) knows about oxygen toxicity. If you're a doctor, Jammer is a call-girl. safe diving, bullshark > If you're a doctor, Jammer is a call-girl. He does have a pony tail and is known to spoon with AG... >> I didn't know if breathing 100% O2 would initiate a seizure or not. The >>HBO doc wasn't sure either. Any thoughts? [quoted text clipped - 6 lines] > >If you're a doctor, Jammer is a call-girl. So many people have said "f.ck 'im", I figured that was the case. >safe diving, > >bullshark Signaturedillon When I was a kid, I thought the angel's name was Hark and the horse's name was Bob. > So many people have said "f.ck 'im", I figured that was the case. Typical PADI logic. Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 >From: "Holo" holotaps@hotmail.com >Date: 8/23/2004 2:26 PM Eastern Daylight Time [quoted text clipped - 13 lines] > >Doc H Please, God, tell me this is a joke. Popeye "If one does as God does enough times, one will become as God is." -Dr. Hannibal Lector. > Please, God, tell me this is a joke. Allright. It's a joke. Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 >From: Jammer Six jammer@invalid.oz.net >Date: 8/23/2004 7:05 PM Eastern Daylight Time [quoted text clipped - 5 lines] > >It's a joke. Thank you, oh Self-Existant one. Popeye "If one does as God does enough times, one will become as God is." -Dr. Hannibal Lector. > >From: Jammer Six jammer@invalid.oz.net > >Date: 8/23/2004 7:05 PM Eastern Daylight Time [quoted text clipped - 7 lines] > > Thank you, oh Self-Existant one. You're welcome. Except We think you mean "Self-Existent". That way, it shows up in dictionaries. Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 >From: Jammer Six jammer@invalid.oz.net >Date: 8/23/2004 8:16 PM Eastern Daylight Time [quoted text clipped - 20 lines] > >That way, it shows up in dictionaries. If anybody would know... Popeye "If one does as God does enough times, one will become as God is." -Dr. Hannibal Lector. > >From: Jammer Six jammer@invalid.oz.net > >Date: 8/23/2004 8:16 PM Eastern Daylight Time [quoted text clipped - 22 lines] > > If anybody would know... f.ck'n A, jasper. Signature"I know we're going to die. There's three of us who are going to do something about it." -Tom Burnett, aboard United Airlines flight 93, September 11, 2001 > € Thank you, oh Self-Existant one. > [quoted text clipped - 3 lines] > > That way, it shows up in dictionaries. Sure, but it still doesn't mean anything. Yes, it definitely can cause a seizure if breathed at too high a partial pressure Fire the HBO Dr, he is incompetent if he didn't know this, frankly he is undertrained and a walking lawsuit for the hospital John > I work at a hospital in Virginia Beach where we essentially get any and >all dive-related emergencies from our area of the mid-atlantic. I recently [quoted text clipped - 9 lines] > >Doc H |
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