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Polysomnography (PSG) is a multi-parameter type of sleep study [1] and 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").
The local Romance languages, somewhat ambiguously referred to as dialetti 'dialects', are direct descendants of Latin, and until relatively recently were the first languages of most Italians. Today their use is receding, but especially in smaller towns and villages it is still common for natives to use the local variety as home language and ...
The United States does not have an official language at the federal level, but the most commonly used language is English (especially American English), which is the de facto national language. In addition, 32 U.S. states out of 50 and all five U.S. territories have declared English as an official language.
Sign with text: Sömnförsök pågår (Sleep study in progress), room for sleep studies in NÄL hospital, Sweden. A sleep study is a test that records the activity of the body during sleep. There are five main types of sleep studies that use different methods to test for different sleep characteristics and disorders.
Polysomnography, the "gold standard" method for sleep tracking that requires attaching electrodes and monitors to the patient as they sleep, was developed in the late 1950s. [ 5 ] [ 6 ] [ 7 ] It is considered by sleep researchers as providing the most accurate sleep data, however, it is an expensive, often uncomfortable experience for patients ...
A polysomnographic technologist (formerly called a polysomnographic technician) performs overnight, daytime, or home sleep studies, polysomnograms, on people with suspected sleep disorders. In the United States and worldwide, the process for becoming a polysomnography technician or technologist is primarily either on-the-job or certificate ...
The information includes sleep onset time, sleep latency, number of awakenings in a night, time in bed, daytime napping, sleep quality assessment, use of hypnotic agents, use of alcohol and cigarettes, and unusual events which may influence a person's sleep. Such a log is usually made for one or two weeks before visiting a somnologist.
Dr. Surendra Gambhir receiving Padmabhushan Dr. Moturi Satyanarayan Award by Pratibha Devisingh Patil. Dr. Surendra Gambhir is a United States based Indian author, writer [1] [2] and Adjunct Associate Professor, Department of South Asia Studies. [3]