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Post by parrett on May 22, 2010 16:10:26 GMT -6
I have had several reports from clients stating that during the polygraph the blood pressure cuff was so tight that their hand turned purple, started twitching and in one case the client reported he almost passed out. I admit I am new to the polygraph tool but I am concerned. Most of the tests have resulted in inconclusive results. Since I have had so many complaints I wanted to get some feedback on what is "normal".
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Post by parrett on May 22, 2010 16:11:40 GMT -6
By the way, I am the clincian not the polygrapher.
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Post by kiesopolygraph on May 26, 2010 20:51:33 GMT -6
During a polygraph examination the blood pressure cuff is to be inflated to between 60mm and 70mm of pressure. This allows the examiner to have adequate and proper cardiovascular/relative blood pressure physiological tracings. The examinee should be informed by the examiner that during the examination their arm and/or hand might become numb and tingly which may cause some minor discomfort. Immediately following each chart collection of physiological data the air pressure is released from the cuff allowing the examinee to regain comfort before the next chart is collected. It is possible that the examiner is inflating the cuff with too much pressure and is causing undue discomfort. I have had very few complaints in the hundreds of examinations I have administered. I also understand that the examinee(s) might be attempting to avoid having to submit to polygraph examinations and therefore exaggerating the discomfort of the blood pressure cuff.
Regarding the many "Inconclusive" results you are getting from the mentioned examiner, that should not be happening. There could be several reasons for that. As in any profession, there are competent and incompetent professionals. Maybe the examiner is developing very poor questions, maybe he or she is afraid to make a 'truthful' or 'deceptive' decision, maybe he or she is poor at interpreting the collected physiological data, or maybe the examiner was poorly trained. A competent examiner should only have Inconclusive results approximately 5 to 10% of the time. Otherwise, they should be able to make a truthful or deceptive decision on a regular basis. But once again, all examiners are not the same, the skill levels of each examiner may vary greatly depending on their training and competence.
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