Thursday, June 28, 2012

Scientists Keep Rabbits Alive With Oxygen Microparticle Injections

The experimental solutions contained 50-90 mL of O2 per deciliter - to sustain an adult human, you need about 300 mL O2 per minute. At least 300 mL of IV fluid and as much as 600 mL per minute is going to have to go through one hell of an IV. I doubt you could achieve such infusion rates without specialized equipment (e.g., 8.5 French rapid infusion catheter + Level One pump) or multiple intraosseous needles.

Furthermore, this is temporizing just like any other O2 delivery method. Oxygen is essential for life, but eventually you have to clear the CO2, or it's pointless. As a bridge to a secure airway or crash on to cardiopulmonary bypass? Sure, it's not a bad idea, except that the only thing that matters in that kind of life-or-death situation is how long it takes to get it in the room. By the time you get this stuff out of the refrigerator in pharmacy and run it to the OR, ER, or ICU, you could have gotten a surgeon there to do the cricothyrotomy or even a proper tracheostomy.

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