Ccr Diver From Ohio Died In Ginnie Springs Today...

[dreamdive]

Following NetDoc's musing about hypercania - if someone were in hypercania (is that the right way to say it?), how long would it take to recover after being on OC gas?

It Depends! It depends on the CO2 level in the diver and depth which affects gas density and the ability to exhale sufficiently. It can take a long time. There are other scenarious than CO2 and unless someone knows for sure, speculation does not help. He was already on bailout (as per Netdoc) yet still died. Lots and lots of speculation here......

C Sotis MD

 

[The Chairman]

@CamG No idea yet.

@Jax Your CCR buddy should tell you how they want to be handled in case of an emergency. Once you bail for hypercapnia, your dive should be over. Ascend as quickly and safely as possible on bailout. Recovering from hypercapnia at depth is problematic on many levels. It's best dealt with on the surface.

 

[iamrushman]

unbelievable...I'm so sad and sorry to hear such news.

 

[darushin]

Following NetDoc's musing about hypercania - if someone were in hypercania (is that the right way to say it?), how long would it take to recover after being on OC gas?

I have had hypercapnia underwater on a ccr and after bailout the symptoms took a few minutes to clear totally. The most pressing symptom (choking feeling) cleared after four or five deep breath. The confusion and panicky feeling took a few minutes. The headache though took hours.

If this diver was on open circuit, then he should have recovered if hypercapnia was the issue that caused the bailout.

Daru

 

[Hetland]

CO₂ is used as an anesthetic for animals. I'm not sure if it's still in practice, but at one time, it was used as an anesthetic for children.

If I'm diving rebreather, and my buddy is on OC, (happens often), all of these scenarios & procedures are covered in my brief to that buddy. "If you see me acting behaving oddly or unconscious, flip this lever on my DSV (BOV), and get me to the surface in the same fashion you would rescue an OC diver". If I'm rescuing myself from bad gas/CO2, it's flip the lever on my DSV/BOV to known good gas for a sanity breath or 2, then switch to slung bail out/good gas. "If you as an OC diver come running to me looking for an Octo/yellow 2nd stage thingy, grab "this" reg on my bail out bottle, and we end the dive together". These are all posed as Recreational scenarios.

I don't even wait for a briefing. If there's a CC diver in my group, or solo on a boat. I ask them what I need to do if I see them doing "x", "y", or "z".

 

[muzikbiz22]

I don't even wait for a briefing. If there's a CC diver in my group, or solo on a boat. I ask them what I need to do if I see them doing "x", "y", or "z".

I wish there were more divers like you !!!

 

[kelemvor]

It certainly makes the dangers real for those of us considering a future rebreather purchase. Thanks for sharing.

Hopefully we'll get more details enabling us to determine if there was human error involved.

 

[doctormike]

If this diver was on open circuit, then he should have recovered if hypercapnia was the issue that caused the bailout.

Daru

I'm not a rebreather diver, but you can also develop (or worsen) hypercapnia on open circuit: Diving with Stevie Wonder

 

[kelemvor]

I'm not a rebreather diver, but you can also develop (or worsen) hypercapnia on open circuit: Diving with Stevie Wonder

I guess it's kind of off topic, but a semi interesting read. The author can't believe someone could become narced at the "relatively shallow" depth of 230 feet?

 

[Richard FDC]

Out of respect for the family the diver's name hasn't been released yet. We should suspend speculation until all the facts are known. My prayers and sympathy go out to the family, friends, and those involved. Things like this are very difficult.