Is the Lab Sleep Test for Anyone?
The Lab Sleep Test is available mostly for patients with co-morbidities including:
- excessive daytime sleepiness
- heart disease
Sleep is a complex process. It involves many parts of the brain, and has significant effects on a variety of bodily functions. Testing for sleep disorders therefore involves the recording of your brain wave activity, heart rate and rhythm, muscle activity, and other variables that serve as indicators of sleep pathology. Depending on the nature of your study, other measures may also be obtained. All recordings are performed in one of our private patient rooms, comfortably furnished to create a home bedroom environment.
All of the tests performed are painless. Recording devices are placed only on the surface of the skin. Small electrodes will be applied to the surface of your scalp, face, chest, and lower legs for recording of sleep patterns. Airflow, heart rate, chest movement, abdominal movement, and oxygen level will also be monitored. At times, it may be necessary for the technician to ask that you move the blanket/covers while you sleep to ensure clear visibility of limb and/or chest movements. Your sleep may be videotaped to aid in your diagnosis.
Nocturnal Polysomnography (Diagnostic): Overnight sleep testing performed in accordance with current standards of practice.
Nocturnal Polysomnography with Nasal Continuous Positive Airway Pressure (CPAP): Overnight sleep testing performed in accordance with current standards of practice, with nasal CPAP added and adjusted to therapeutic pressures.
Split-Night Polysomnography: Overnight testing that is split between a diagnostic period, usually at the beginning of the recording, and a nasal CPAP period.
Nocturnal Seizure Recording: Multi-channel EEG recording performed in order to evaluate sleep-related seizures.
Multiple Sleep Latency Test (MSLT): A test that involves a series of daytime nap opportunities in order to evaluate daytime sleepiness. The MSLT is desirable for all cases of daytime sleepiness, and is required for the evaluation of narcolepsy.
Maintenance of Wakefulness Test (MWT): A daytime challenge test in which the patient is given multiple opportunities to nap, but instructed to remain awake during the recording period. The MWT often provides valuable information relevant to the patient’s ability to sustain wakefulness in occupational settings or when performing critical tasks (e.g., driving).