The anatomy of a Sleep Study.

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What is a Sleep Study?

A sleep study may involve the following:

Polysomnogram (PSG) – a diagnostic test which monitors brain activity, breathing and leg movements which helps to evaluate sleep apnea (obstruction of air flow) or a condition known as periodic leg movements of sleep.
Multiple Sleep Latency Test (MSLT) – a daytime sleep study which evaluates how fast a person falls asleep.

What to Expect?

The first step will be an initial visit with our sleep specialist who will review your medical and sleep history. You will then schedule an appointment for an overnight visit. To help determine if a sleep disorder exists, your physician will need to know what physiologic changes occur during your typical night of sleep. We do this by recording your brainwave pattern (known as the EEG) as well as your eye movements and degree of muscle tone. Using an EKG monitor, we will measure your heart rate and check for irregular heart beats during the night. Other measurements will include oxygen saturation, snoring, leg movements or jerking and respiratory effort. An intercom in the room will allow communication with the technician should you have any questions or require assistance. Studies will usually begin between 8:00pm and 9:30 pm and will conclude at about 6am. You will then follow up with your physician who will make recommendations for treatment of the disorder.

How to Prepare

In order to feel more comfortable with your stay, feel free to bring your toiletries and usual sleepwear as well as your own pillow if you prefer. (It is helpful to avoid using hair products or skin lotions on the night of the study). It is recommended that you eat a meal prior to your study and continue to take medications as prescribed (unless your physician specifies otherwise). It is also preferred that you not consume foods or beverages containing caffeine after 5pm.

Learn more about sleep disorders and treatments at http://www.adcsleepdisorders.com/

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