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Preparing for overnight sleep study

Patient Education
​​​Sleep laboratory conducts sleep studies to help patients determine the cause of their sleep disorders. Sleep studies includes polysomnography (PSG), Split night/Continuous positive airway pressure titration studies. A polysomnography will be able to collect information such as:

Brain wave activity (EEG)
Heart activity
Eye movements
Legs movements
Oxygen and carbon dioxide levels during sleep
Body position and behavior during sleep
Air movement and breathing effort

Below is some information to help patient understand on the expectations for an overnight study. 

What to expect during sleep study
On arrival, a sleep technologist will orientate you around the room
Pre-sleep questionnaires to be filled up
Non-invasive wires and sensors will be attached to scalp, face, chest and limbs
CCTV camera will be on through the night for technologist to observe you during sleep
Monitoring wires will be removed in the morning, patients are allowed to shower before discharge.
It is expected that you might not sleep quite as well as you do at home in an unfamiliar environment, however, it would not hinder the study nor affect the results. 

How to prepare for an overnight sleep study
Avoid taking naps during the day before coming in for sleep study
Avoid alcohol and caffeine
Remove any nail polish on both index fingers if possible
Avoid using hairspray, gels, oils or hair products as it may affect sensors on scalp
Notify us if you have a disability that requires special assistance. A caregiver may be asked to stay overnight depending on circumstances
Bring regular medications or take them normally. Do not take any sedating or stimulating medications before sleep study, unless consulted and approved by your doctor

What to bring for an overnight sleep study
Identification card or any identifying document
Loose-fitting and comfortable sleep wear
Personal toiletries, own pillow/blanket if you feel more comfortable using own
Mask and headgear for CPAP sleep study if requested by doctor

As a sleep study requires patient to be admitted for at least 8hours in the sleep lab, should there be any issues such as late or early discharge, please inform our sleep technologist in advance. 

If feeling unwell on day of sleep study, please call to reschedule sleep study.

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