A sleep study, also known as a polysomnography (PSG), is a diagnostic test that measures various biological functions during sleep.
The test is performed in a sleep laboratory or a designated sleep center or at home, and typically takes place over the course of one or two nights.
How is a sleep study done?
During a sleep study, a range of sensors and electrodes are attached to the head, face, chest, legs, and fingers to measure brain activity, eye movements, muscle activity, heart rate, breathing, and other parameters that are indicative of sleep stages.
The data collected during the study is analyzed to diagnose sleep disorders and to assess the effectiveness of treatments.
- Sleep studies are commonly used to diagnose a wide range of sleep disorders, including sleep apnea, insomnia, restless leg syndrome, narcolepsy, and other conditions that affect sleep quality and quantity.
- They are also used to monitor the effectiveness of treatments for sleep disorders, such as continuous positive airway pressure (CPAP) therapy for sleep apnea.
- The results of a sleep study can help healthcare providers make informed decisions about the appropriate treatment for a sleep disorder, including prescription medications, lifestyle changes, and other therapies.
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