Who has a PSG?
A polysomnogram is often used in the following
- To diagnose a patient with sleep-related
breathing disorders, such as sleep apnea
set the correct levels of continuous positive airway pressure (CPAP) in patients with sleep related breathing disorders
- To go along with a daytime MSLT to see if someone has narcolepsy
- To document behaviors during sleep that can be violent or could be harmful to the patient or others
What happens when I have it?
Everyone at our sleep center will do
everything possible to make you feel relaxed. You will be asked to come to the center in the evening at either 8:15pm or 9:00pm. We
will give you some time to make yourself at home in the bedroom. No other patients will be in the room with you.
You will not feel any pain during the polysomnogram.
The sensors are gently placed on your skin and connected to a computer. The wires are long enough to let you move around and
turn over in bed. You will be asked make a series of movements to record that the sensors are working.
You are free to read or watch TV until your normal bedtime. Then the lights
are turned out and it is time for you to try to fall asleep. A infrared video camera allows a technologist to see
you from a nearby room. The tech may have to enter your room if a sensor comes loose. You will have a buzzer to call the tech
if you need to go to the bathroom during the night and the tech will detach from the monitoring system so that you go.
Most people have little trouble falling asleep during the study, but
not all people sleep as well as they do at home. This doesn't affect the results. In most cases, you only need to
sleep a small amount of time to find the source of your problem. The PSG is not a test that you can fail.
In the morning the sensors will be removed, and you will be free
to go. You may be tired if you did not sleep well during the night. Otherwise, you can return to normal activities on the
day after a sleep study.