[CodeToad]

The problem is that O2 saturation can fall faster than CO2 absorption increases, so when seconds count O2 matters most.

[topher]

I imagine once they have this treatment in place, they might have some machine to scrub CO2 in an emergency room.

When I donate blood, they have the ability to just take platelets or just red blood cells.

So it might be possible to get a machine to remove CO2 from the blood like a dialysis machine does.