Overnight Oximetry: An overnight recording of oxygen saturation and heart rate frequently used to determine adequacy of oxygen saturations during sleep in a number of medical conditions, and if warranted, may lead to additonal polysomnography testing or prescription for supplemental oxygen to be worn during sleep by nasal cannula.
Diagnostic Polysomnography: A collection of signals during sleep with multichannel assessment of electrical brain, heart and other physiological parameters of sleep. These include electroencephalogram, electrocardiogram, pulse oximetry, eye movements, electromyogram, body position, respiratory and air flow signals.
Continuous Positive Airway Pressure Polysomnography (CPAP): Similar collection of physiological parameters during sleep, while simultaneously administering positive airway pressure via a pressurized mask or nasal device which supports airway opening to allow easier breathing and airway maintenance during sleep and thereby improving sleep quality.
Home Diagnostic Sleep Studies: This area has advanced in recent years and is now commonly performed. For appropriate patients, we now have equipment to perform diagnostic home sleep studies to aid in the assessment of sleep apnea.
Maintenance of Wakefulness Testing (MWT): Sleep testing performed durng the daytime in a quiet environment assessing sleep latency.
Multiple Sleep Latency Testing (MSLT): Sleep testing performed during the daytime during normal wakefulness to assess severity of sleepiness; often considered the diagnostic test used to support possible narcolepsy.
Actigraphy: Recording performed over several days assessing the degree of body activity which may correspond to wakefulness and sleep.