Polysomnogram (overnight study)
A polysomnogram (PSG) is the most reliable test used to diagnose
certain sleep disorders. It measures abnormalities in the sleep
cycle. This test can also help to rule out another medical
condition.
The test is done overnight and it is painless. Electrodes placed on
the skin and scalp are connected to recording equipment to monitor
and record the following body functions during sleep: airflow and
respiratory effort, sound, blood oxygen levels, heart rate,
electrical activity in the brain, eye movement and muscle movement.
CPAP Titration (overnight study)
A continuous positive airway pressure (CPAP) titration study is an
overnight sleep study to set the correct air pressure for treatment.
When you come in you are fitted for a CPAP mask and then hooked up
to the polysomnography equipment. During the night the pressure of
the air coming from the CPAP machine is gradually increased until
your breathing is normalized and your correct CPAP pressure has been
determined. You will be trained that night for proper use and care
of your CPAP machine.
Multiple Sleep Latency Test (daytime study)
A multiple sleep latency test (MSLT) is conducted, along with a
polysomnogram, to confirm or rule out narcolepsy. It is a daytime
test that monitors a series of naps to reveal a person's severity of
sleepiness and the inappropriate presence of early onset REM sleep.
The test is usually done immediately after an overnight study. A
series of five naps is taken at two-hour intervals. The test is
completed by 5 p.m.
Maintenance of Wakefulness Test (daytime study)
A Maintenance of Wakefulness Test (MWT) is conducted along with a
polysomnogram to determine your ability to remain awake during the
day. The format is similar to an MSLT.
This test is generally used for
commercial drivers, pilots and people who work around heavy
equipment to ascertain ability to perform their job safely.
Privacy
Statement |
