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KMID : 0356219940250010124
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Journal of the Korean Military Medical Association
1994 Volume.25 No. 1 p.124 ~ p.128
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Relationship between the Change of Peripheral Arteral Oxygen Saturation and the Time of Useful Consciousness
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Abstract
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Hypoxia was a serious aviation problem I previous wars and remains a potential threat even in today's military aviation.
Hypoxia, which is a possiblity on each exposure to altitude, has been and will continue to be, a source of dangerous aerospace incidents and accidents.
Chamber fight permit students to experience and identify their individual symptoms of hypoxia under safe and controlled conditions.
Time of useful consciousness(TUC) is the period of time from the interruption of the oxygen supply or exposure to an oxygen-poor enviroment, to the time when useful function is lost. The individual is no longer capable of taking proper corrective
and
protective action,
Pulse oximeter measure arterial oxygen saturation(SaO2) contionusly and nonin-vasively.
We want to known about relationship between the change of SaO2 and TUC.
Out study examines the changes of SaO2 by pulse oximeter during hypoxia demonstration training in chamber-flight.
Our study examies twenty pilot and the following results were obstained.
1. TUC at 25,000 feet altitude was measured by average of 268,80 second.
2. THC ending SaO2 at 25,000 feet altitude was examined by average of 65.35%.
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