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As part of your clinical evaluation, you have been asked to have an overnight sleep study or polysomnogram. Depending on the nature of your complaints, you will have to spend one or more nights in the hospital. If you suffer from excessive sleepiness, you may also need to complete a daytime test (Multiple Sleep Latency Test - MSLT) which will take place the day after your last overnight stay in the sleep laboratory. This article is to remind you of your appointment and to give you some information about the test and the admission procedures.
Report to the Admitting Department
To prevent delays and to minimize the time you have to spend in the laboratory, each of the six patients who are studied each night have been given a specific time to report to the admitting office. If you are late for your appointment, you will have to wait untill all the remaining sleep laboratory patients have been admitted. Please be punctual.
You will need to bring the following items for your stay:
What NOT to bring:
There are no lock-up facilities available in the evening. The hospital will not responsible for lost, stolen and damaged valuables.
If you bring your car you may park in the Visitors' Parkade for a fee. If you are being dropped off, there is a drop-off zone (10 minute limit) in the front of the hospital.
Please report directly to the Admitting Department on the Main Floor. When the admission procedures are completed, you will be taken to the Sleep Laboratory on Ward 2C.
The technologist will meet you in your room and he/she will explain all the procedures that will be completed for your study. You will be asked some questions about your current health and your sleep.
You are encouraged to ask questions or express any concerns that you may have. The procedure is "non-invasive", meaning there will be no needles. It takes approximately one hour to prepare you for the study. The technologist will be available in the next room and you will be supervised at all times.
The study will take place overnight and finish between 7:30 and 8:00 am For Respiratory patients, preliminary results will be discussed with you by a doctor. General patients are free to leave once the technologist has completed the study. You can buy breakfast in the hospital cafeteria. Patients staying for a daytime test will be served breakfast and lunch from the hospital kitchen.
If you are require a second night's evaluation the technologist will inform you of when you should come in. After the first night, you do not need to return to the admitting department; come straight to the laboratory.
The MSLT (Multiple Sleep Latency Test) consists of four or five scheduled twenty-minute naps and runs from 8:30 am to 5:30 pm, depending on the results during the day. The earliest you will be discharged is 4:00 pm while the latest is 5:30 pm.
Sleep Disorders Patients:
It is very important that you do not nap (except if you have narcolepsy), drink alcohol or take recreational drugs one week prior to, and during, this test. Do not consume caffeine (coffee, tea, cocoa, chocolate) after noon the day of your test. If your doctor wishes your study to be completed on your current medications, he/she will tell you this. Napping, using alcohol, recreational drugs or caffeine affects the test and can limit its usefulness.
Respiratory Sleep Disorder (snoring / sleep apnea) Patients:
We would like to study you during a typical night's sleep. If you normally have an alcoholic drink in the evening, continue with your usual practice. Please take all your usual medications.
Please call the Sleep Disorders Clinic 604.822.7606
It is very important that you notify us at least 48 hours prior to the study if you are unable to make this appointment or if there has been any change in your medical condition. Because the laboratory is heavily booked, it can take up to three to four months to reschedule cancellations so we encourage you not to cancel.
We welcome your comments about your treatment and our attempts to help you. If you have any comments (good or bad) which you feel we should know about please express them in writing.
The Sleep Disorders Program at UBC Hospital was established to provide a special expertise in the investigation, diagnosis and treatment of sleep disorders. Donations made to the clinic are used to aid research and purchase additional equipment. All donations are tax deductible and appropriate receipts are issued. Please make cheques payable to:
VGH/UBC Hospital Foundation
(Sleep Disorders Program)
All donations or comments may be forwarded to:
Address of the Sleep Disorders Program: