Polysomnography | 合法醫療器材資訊網

Mostscreeningtoolsconsistofanairflowmeasuringdevice(thermistor)andabloodoxygenmonitoringdevice(pulseoximeter).Thepatientwouldsleepwiththe ...

Multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine

Polysomnography (PSG), a type of sleep study,[1] is a multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine. The test result is called a polysomnogram, also abbreviated PSG. The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").

Type I polysomnography, a sleep study performed overnight while being continuously monitored by a credentialed technologist, is a comprehensive recording of the biophysiological changes that occur during sleep. It is usually performed at night, when most people sleep, though some labs can accommodate shift workers and people with circadian rhythm sleep disorders and do the test at other times of th...