Re: "how to test for pain response in comatose individuals
I have a particular problem with that method and the last medical officer to ATTEMPT to do it in my presence - well let us just say that he won't ever suggest THAT method of pain stimuli again - ever - anywhere - anywhen.
For a start I would like to see us change the name to "noxious stimuli". I am not being politically correct here but the name change does two things 1) makes it more acceptable to relatives
2) gets around the new staff thinking that they HAVE to use painful stimuli and accept that any noxious stimuli that the patient does react to is acceptable.
I wrote a learning package on the GCS and one of the points I made was that unless we are very careful painful stimuli could be construed as assault, particularly if it is not given in a manner that is commonly acknowledged in texts.
Without going over the research I originally did into this, and from memory, the commonly cited CENTRAL noxious stimuli were:-
1) sternal pressure (NOT sternal rub)
2) supra orbital pressure (unsuitable for frontal and base of skull injuries)
3) Trapezius squeeze
4) Less common but effective - pressure over Temporo- mandibular joint (you can try that one on yourself - just press the corner of your jaw - Ow!)
My personal site of choice is the trapezius as it is usually reasonably easy to access, causes acute discomfort without causing bruising and will give a good reaction.
Hope that helps
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