Definitive diagnosis of decompression sickness

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jfcl01:
You could also get an elevated CK from any muscle trauma, which is easy enough to get on a dive boat

Yes, but not the levels seen in AGE. The levels are more akin to being in rhabdomyolysis. See the paper referenced on the link.
 
Has anyone looked at adapting pulse oximetry to quantify nitrogen concentration in circulating blood?

Michael
 
Pulse oximetry is based on the red and infrared light absorption characteristics of oxygenated and deoxygenated hemoglobin. Oxygenated hemoglobin absorbs more infrared light and allows more red light to pass through. Deoxygenated (or reduced) hemoglobin absorbs more red light and allows more infrared light to pass through. Red light is in the 600-750 nm wavelength light band. Infrared light is in the 850-1000 nm wavelength light band.


Since hemoglobin does not take nitrogen, it would not work.
 
Hello mandvm:

While oximetry would not work for nitrogen, other methods of blood analysis have been employed (eg, blood gas analysis, expired gases). These have not yielded anything of particular significance.

Unfortunately, DCS is primarily a matter of dissolved nitrogen tensions in specific, small volumes of body tissue. Blood gas analysis is a method that examines mixed venous blood from all tissues. This is not exactly what is needed.


Dr Deco :doctor:


The next class in Decompression Physiology for 2007 is August 18-19. :1book:
This class is at the USC campus in Los Angeles.
http://wrigley.usc.edu/hyperbaric/advdeco.htm
 
https://www.shearwater.com/products/teric/

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