Polysomnogram

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Polysomnogram

A polysomnogram is a procedure that records a variety of body functions during sleep, including eye movement, muscle activity, and electrical activity of the brain. This test is done as part of a series of sleep tests to diagnose sleep disorders, such as sleep apnea, and problems staying awake or sleeping.

Polysomnograms usually are done in a hospital sleep lab and are monitored by a trained sleep lab technician. Small metal discs called electrodes are attached to the person's head and body to record brain activity, eye movements, muscle movements, heart rhythm and rate, limb movements, and snoring. There is no pain or physical discomfort associated with these tests. Polysomnogram recording equipment and video monitors record the person's movements and activities during sleep. The technician is in a separate room monitoring the test.

Polysomnogram test results are generally available within 1 to 2 weeks.

Credits

Author	Jeannette Curtis
Author	Caroline Rea, RN, BS, MS
Editor	Kathleen M. Ariss, MS
Editor	Susan Van Houten, RN, BSN, MBA
Associate Editor	Tracy Landauer
Associate Editor	Pat Truman
Primary Medical Reviewer	Patrice Burgess, MD - Family Medicine
Primary Medical Reviewer	Adam Husney, MD - Family Medicine
Primary Medical Reviewer	Kathleen Romito, MD - Family Medicine
Last Updated	May 25, 2007

Last updated:	May 25, 2007
Author:	Caroline Rea, RN, BS, MS
Reviewed By:	Kathleen Romito, MD - Family Medicine
Editors:	Susan Van Houten, RN, BSN, MBA, Pat Truman

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