Odd Capnography

olaf1988

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I saw a thread a little while ago about odd capnography and I had a call recently that had me wondering about what was going on as well.

Dispatched out for "syncopal", we get on scene and PD is doing compressions. Male in his 40s passed out at work, PD was in the area and arrived, started compressions within a few mins. Initial rhythm was agonal. Only hx we got was that he drank a lot of energy drinks. We got a line, pushed Epi, I got the tube and the initial EtCO2 was 12mmhg for the first 10mins of the code. Then it jumped up to 38mmHg, we reassessed and found no change in rhythm and no pulse (the rhythm was agonal for the whole call). The capno never got below 20mmHg after that for the remainder of the call... We ended up transporting after 20mins on scene and at the ER there was no cardiac activity with ultrasound so they called it. The only time I've seen a drastic change like that is when we get pulses back. I'm just curious if there is something besides ROSC that can cause a jump like that? Were the firefighters just doing baller CPR?
 
Did y'all give Bicarb?
 
Maybe someone gets organs- kidneys and liver ought to still be viable.
 
Could be the epi.
 
Did y'all give Bicarb?

Yeah, we pushed bicarb, but the change in capnography happened before we gave it....


A PE that was dislodged?

Huh, maybe... if it was a PE wouldn't you expect to have some sort of rhythm still? Our response time on this call was about 5mins and PD started compressions even before that.
 
I saw the same thing once on a patient who was asystole and never got ROSC. Maybe someone has an explanation for this?
 
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