
Polysomnogram (PSG)
A polysomnogram is an overnight sleep study that records brain activity, eye movements, heart rate, blood pressure, oxygen levels, body movement, and more. Polysomnograms are used to help diagnose some of the following:
-
Sleep related seizure disorders.
-
Sleep related movement disorders such as periodic limb movement disorder (PLMD).
-
Sleep related disorders caused by excessive daytime sleepiness (EDS).