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The diagnosis of insomnia is made by a physician based on the patient's reported signs and symptoms. It can be useful for the patient to keep a daily record for two weeks of sleep patterns, food intake, use of alcohol, medications, exercise, and a...
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Insomnia, unlike some medical conditions, is easily recognizable. People know when they aren't getting enough sleep. The key to treating insomnia is determining its causes. Some people can identify sleep-inhibiting factors such as a death in the f...
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According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), which presents the guidelines used by the American Psychiatric Association for diagnosis of disorders, in order to be diagnosed with primary insomnia, a person mus...
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A polysomnograph is a test of sleep cycles and stages through the use of continuous recordings of brain waves ( EEG ), electrical activity of muscles, eye movement (electrooculogram), breathing rate, blood pressure, blood oxygen saturation, and heart rhythm and direct observation of the person during sleep. There are two states of sleep: non-rapid eye movement (NREM) sleep and rapid eye movement (REM) sleep. REM sleep is associated with dreaming and paralysis of body muscles (except for the eye and diaphragm muscles). NREM sleep has four stages distinguishable by EEG waves. REM sleep alternates with NREM sleep approximately every 90 minutes. A person with normal sleep usually has four to five cycles of REM and NREM sleep during a night.
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The word polysomnography, derived from the Greek roots " poly, " meaning many, " somno, " meaning sleep, and " graphy " meaning to write, refers to multiple tests performed on patients while they sleep. Polysomnography is an overnight test to evaluate sleep disorders .
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What Is a Sleep Study?Do you often have problems sleeping?
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Polysomnography is a series of tests performed on patients while they sleep. Polysomnography is a comprehensive overnight procedure that evaluates sleep disorders .
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Polysomnography is a set of tests performed while a patient sleeps. It is done to diagnose and evaluate sleep disorders , and examines at a minimum brain wave patterns, the movements of both eyes, and the tone of at least one skeletal muscle.
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