At our sleep center,
we offer a range of tests
for sleep disorders

Polysomnogram (PSG) Typically, this is an overnight in-laboratory recording. However, if you routinely sleep during the day or evenings, your testing hours can be customized as long as your physician makes arrangements in advance. The PSG records essential diagnostic data, including brain waves (EEG), muscle contractions/movements (EMG), eye movements (EOG), air flow in nose and mouth, breathing effort, pressure fluctuations in the nose, heart rate and rhythm (ECG), blood oxygen saturation (SpO2), and body movements. No invasive procedures are used in our routine PSG tests. If needed, additional data can be collected.

Split night PSG If, during the first hours of your PSG, the data we collect strongly supports the diagnosis of obstructive sleep apnea syndrome, then an air-tight, lightweight, rubbery nose mask or tubes that insert into your outer nostrils will be applied. These are used to supply air, using the minimum pressure required to prevent obstructions of your upper airway, for the remainder of the PSG.

Long-term seizure recording For this test, your brain waves (EEG) are recorded throughout a sleep period. In some cases, the test can last several consecutive days.

Multiple sleep latency test (MSLT) This test is conducted after an overnight in-laboratory PSG. The MSLT begins one-and-a-half to two hours after you wake up. You will then be encouraged to sleep five consecutive times, once every two hours.

Multiple wakefulness test (MWT) This is a variation of the MSLT, in which you will be instructed to stay awake sitting up in bed, rather than napping, every two hours.

Actigraphy For this test, small wristwatch-like devices will be attached to your wrists or ankles. They record the rate, intensity, and pattern of your movements. These recordings can be done in the laboratory or at home and work, and can continue for a week or longer when necessary.