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Your Sleep Test
Test Overview
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Polysomnogram
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Sleep
Apnea Test pdf
Patient Registration Form pdf
When your physician orders a sleep study for
you, you or their office staff need to call the sleep lab to
schedule your sleep test.
On the evening of your sleep test, bring your paper
work, bed clothes and personal items to the sleep lab.
Patient rooms are homey, comfortable, and contain:
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A
queen-size bed
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Television
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DVD player
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Infrared
monitoring camera,
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Recliner
chair, if needed to sleep in
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Two-way
intercom
When you arrive at the sleep lab, the technician will
attach electrodes to
different parts of your body to monitor your:
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Breathing,
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Eye and leg movements
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Brain waves
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Heart beat
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Muscle
tension and
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Oxygen levels
When you fall asleep, the electrodes will
collect information and send it through wires to an
equipment/monitoring room where a report is printed. The
technician will monitor your rest throughout the night.
Test Overview
Sleep studies are tests that watch what happens to your body
during sleep. The studies are done to find out what is causing
your sleep problems. Sleep problems include:
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Sleep apnea, when an adult regularly stops breathing during
sleep for 10 seconds or longer. This may be caused by
blocked airflow during sleep, such as from narrowed airways.
Or it may be caused by a problem with how the brain signals
the breathing muscles to work.
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Problems staying awake, such as
narcolepsy.
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Problems with nighttime behaviors, such as sleepwalking,
night terrors, or bed-wetting.
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Problems sleeping at night (insomnia). This may be caused by
conditions such as periodic limb movement disorder, which is
an intense urge to move the legs.
Sleep studies can also determine whether you have a problem
with your stages of sleep. The two stages of sleep are
non-rapid eye movement (NREM) and rapid eye movement (REM).
Normally, NREM and REM alternate 4 to 5 times during a night's
sleep. A change in this cycle may make it hard for you to
sleep soundly.
The most common sleep studies are:
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Polysomnogram.
This test records several body functions during sleep,
including brain activity, eye movement, oxygen and carbon
dioxide blood levels, heart rate and rhythm, breathing rate
and rhythm, the flow of air through your mouth and nose,
snoring, body muscle movements, and chest and belly
movement.
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Multiple sleep latency test (MSLT).
This test measures how long it takes you to fall asleep. A
video camera is used to record movements during sleep.
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Multiple wake test (MWT).
This test measures whether you can stay awake during a time
when you are normally awake.
The Polysomnogram (PSG)
A Sleep Study or Polysomnogram (PSG) is a multiple-component
test, which electronically transmits and records specific
physical activities while you sleep. The recordings become
data, which will be "read" or analyzed by a qualified
physician to determine whether or not you have a sleep
disorder.
Throughout the tour, we will discuss the many components of a
PSG and explain the 4 types of Polysomnographic Studies. They
are:
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Diagnostic Overnight PSG
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General monitoring and evaluation.
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Diagnostic Daytime Multiple Sleep Latency Test (MSLT)
- Used to diagnose Narcolepsy and measure the degree of
daytime sleepiness. To ensure accurate results, it is
performed on the morning following a Diagnostic Overnight
PSG.
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Two
Night PSG with CPAP Titration
- General monitoring and diagnostic evaluation is conducted
on the first night. If Sleep Apnea is discovered, the
patient returns for a second night to determine the
necessary CPAP pressure required to alleviate apnea.
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Split
Night PSG with CPAP Titration
- Split Night PSG is conducted when moderate or severe Sleep
Apnea has been discovered or strongly suspected during the
first part of the nights study. The second half of the night
is used for CPAP Titration.
Denton Sleep Disorders
Laboratory
3200 Colorado Blvd., Suite
200
Denton, Texas 76210
www.dentonsleepdisorderlab.com
For more information please call
940-381-0971 or fax
940-384-7069
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