How is the study performed?

During the CPAP study you are fitted with a nasal mask. The mask is connected by a tube to a small electric unit. The unit has a fan that pushes air through the tube. The mask allows the air to gently blow into the back of your throat. Pressure is started at a very low level. It is then increased at various intervals during the night. The goal is to find the right level of air pressure that will prevent the collapse of your upper airway. This eliminates pauses in your breathing as you sleep.

Home Sleep Test (HST) – HSTs offer the advantage of allowing testing in the patient’s own home and with less instrumentation, thereby theoretically providing a more natural sleeping environment.

The minimal number of sensors used during an HST limits home sleep testing to only be able to diagnose sleep apnea, while in-lab tests are able to identify and diagnose most sleeping disorders. Additionally the lack of a trained sleep technologist during home testing who, among other responsibilities, is able to recognize when a sensor has come off during the night and replace it while the patients sleeps, allows a greater potential for inaccurate tests and misdiagnosis.

Multiple Sleep Latency Test (MSLT) – The MSLT is a sleep disorder diagnostic tool. It is used to measure the time elapsed from the start of a daytime nap period to the first signs of sleep, called sleep latency. The test is based on the idea that the sleepier people are, the faster they will fall asleep.

The MSLT is used extensively to test for narcolepsy, to distinguish between physical tiredness and true excessive daytime sleepiness, or to assess whether treatments for breathing disorders are working. Its main purpose is to discover how readily a person will fall asleep in a conducive setting, how consistent or variable this is, and the way they fall asleep in terms of REM sleep and other brain patterns. This can be used to identify and differentiate between various sleep problems.

The test consists of four or five 20-minute nap opportunities set two hours apart, often following an overnight sleep study. During the test, data such as the patient’s brain waves, EEG, muscle activity, and eye movements are monitored and recorded. The entire test normally takes about 7 hours during the course of a day.

Maintenance of Wakefulness Testing (MWT)
The Maintenance of Wakefulness Test (MWT) is used to measure how alert you are during the day. It shows whether or not you are able to stay awake for a defined period of time. This is an indicator of how well you are able to function and remain alert in quiet times of inactivity.

The test is based on the idea that your ability to stay awake may be more important to know in some cases than how fast you fall asleep. This is the case when the MWT is used to see how well a sleep disorders patient is able to stay awake after starting treatment. It is also used to help judge whether a patient is too tired to drive or perform other daily tasks.

The sleep specialist will help you decide what you can and cannot have. You may be asked to take a test to screen for drugs on the morning of the MWT. It will help show that the results of the MWT are accurate.

The MWT is used to see if someone with a sleep disorder is responding well to treatment. Results of multiple tests may be compared over a period of time. This can show if treatment is helping a patient overcome sleepiness. The MWT may be used to evaluate how well a person with a sleep disorder is able to stay awake. This is critical when the person’s job involves public transportation or safety. The results of the test will be only one factor used to assess the potential risk of a work-related accident.

PAP ADAPT – The newly developed United Sleep Diagnostics PAP ADAPT! Program is designed to assess and alleviate physical and emotional barriers to effective use of CPAP. PAP ADAPT! is a daytime program lasting from 2-5 hours which includes, a nap of 1 to 2 hours, hands on coaching (delivered by specially trained sleep technicians under the supervision of a physician) and same day feedback for your patient regarding the issues preventing CPAP compliance. We will follow up with you to let you know the results of the patient’s progress in the PAP ADAPT! program.


For information or to schedule an appointment, call 516-218-9097