WHAT
IS A SLEEP TEST?
A sleep
test, also known as a Polysomnogram, measures bodily functions
during sleep. Each test will vary depending on the individual
case and some of the measurements taken may include:
Brain Waves (skin, surface electrodes on the end)
Heart Beats (skin, surface on the chest)
Eye movements (skin, surface electrodes above and below the
eyes)
Muscle Tension (skin, surface electrodes on the chin
Leg Movements (skin, surface electrodes on the lower leg)
Breathing Effort and Movement (small, elastic gauges placed
around the chest or stomach)
Breathing (sensors attached to the ear or finger, and not taken
from actual blood samples)
Other bodily
functions may be recorded to answer special questions about
such things as impotence, chest pain, etc.
WHY
RECORD ALL OF THESE THINGS?
During sleep
the body functions differently than while awake. Disrupted sleep
can disturb daytime activities and sometimes medical problems
during sleep involve a risk to basic health.
HOW
CAN I SLEEP WITH ALL THESE THINGS ON ME?
Surprisingly,
most people sleep very well. The body sensors are applied so
that you can turn and move during your sleep. Generally, you
will not be aware that you are wearing the devices after they
have been on for a short time. Our staff tries to make the environment
as comfortable and similar as possible to your home surroundings
and many patients report that they actually sleep better here
than at home. Remember that this is not a test, but merely a
recording of how you sleep.
WILL
THE SENSOR DEVICES HURT?
No. Sometimes,
in rubbing the skin or putting on the ear device, there are
mild and temporary skin irritations. You may also feel a sensation
of warmth where the oxygen-measuring device contacts your skin.
However, these do not generally cause any significant discomfort.
(FEMALES, PLEASE KEEP YOUR INDEX FINGER ON EITHER HAND FREE
FROM NAIL POLISH OR ACRYLIC NAILS, AS THIS CAN INTERFERE WITH
THE RECORDING OF YOUR OXYGEN LEVELS DURING THE NIGHT)
WILL
I BE GIVEN A MEDICATION TO HELP ME SLEEP?
No. In fact,
we prefer to the extent if medically possible that you be off
sleeping medications for at least eight (8) days prior to coming
to the Sleep Lab. Some medications will need to be stopped even
longer for the study. It is important not to consume alcohol
or caffeinated beverages on the day of the sleep study.
WHAT
IS A MULTIPLE SLEEP LATENCY TEST ( MSLT )?
Some
patients also participate in the daytime testing. This test
consists of a series of twenty (20) minute naps, in two hour
intervals throughout the day, the same kind of information that
is measured for a polysomnogram. We ask that you try to go to
sleep even if you feel you can’t, and that you remain
awake between the nap periods.