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Polysomnogram
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Polysomnogram (PSG) is the most reliable test used to diagnose
certain sleep disorders. It measures abnormalities in the sleep
cycle. This test can also help to rule out if a person’s
symptoms stem from another medical condition.
The test is an overnight study that is very easy to have done and
there is virtually little or no discomfort. Electrodes are placed
on the skin and scalp. These electrodes are then connected to
recording equipment to monitor and record the following body
functions during sleep: airflow and respiratory effort, blood
oxygen levels, blood pressure and heart rate, electrical activity
in the brain, eye movement and muscle movement.
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