Polysomnogram | Sleep Study

Georgetown Sleep Center specializes in polysomnography, also known as a sleep study. The sleep study is used to measure biophysiological changes during sleep. These tests are typically performed at night, when you regularly sleep, though we can also perform sleep tests during the day for shift workers, night owls and other special circumstances.

Polysomnography (PSG), is a multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine.

Polysomnography is a comprehensive recording of the biophysiological changes that occur during sleep. It is usually performed at night, when most people sleep, though we can accommodate shift workers and people with circadian rhythm sleep disorders and do the test at other times of day. The PSG monitors many body functions including brain (EEG), eye movements (EOG), muscle activity or skeletal muscle activation (EMG) and heart rhythm (ECG) during sleep. We monitor the breathing function, to include respiratory airflow, respiratory efforts and pulse oximetry to assess your oxygen levels.

In addition, we record audio and video so the technician can observe the patient visually from a control room.

Polysomnography is used to diagnose, or rule out, many types of sleep disorders including narcolepsy, periodic limb movement disorder (PLMD), REM behavior disorder, parasomnias, and sleep apnea. It is often ordered for patients with complaints of daytime fatigue or sleepiness that may be caused by interrupted sleep.

What Can I Expect During a Sleep Study?

Your sleep physician may recommend that you have a polysomnogram, commonly called a sleep study. Georgetown Sleep Center is committed to ensuring both your comfort and personal safety during your sleep study. The Sleep Center is located in a quiet neighborhood on five lovely acres, with ample, well lit parking.

You will be asked to come to the Sleep Center in the evening. On arrival, you will be immediately greeted by one of our friendly and professional sleep technologists. You will be escorted to your beautiful, custom designed bedroom suite, where every detail has been considered for a caring, confidential and comfortable environment. Your personal sleep tech will explain every detail of your study. You will be free to read or watch cable TV before you fall asleep.

Many patients feel that they sleep even more soundly than at home. There will be as few interruptions as possible during the recording of your sleep with the latest, most advanced technology. While you sleep, some of the data monitored will be brain waves, oxygen levels, eye movements and breathing.

What Happens After My Sleep Study?

In the morning you will be able to resume your normal daily activities. You will return to the Sleep Center on another appointment day where your sleep physician will meet with you and go over your sleep study, including audio and video, along with diagnosis and recommended treatment.