Your doctor will examine you and ask you and possibly your sleeping partner questions about your lifestyle, snoring, sleep behavior, and how tired you feel during the day (this is called a medical history). Your doctor may ask you to complete a questionnaire, such as the Epworth Sleepiness Scale. The answers to questions in this questionnaire can help the doctor find out if you have sleep apnea. If your doctor thinks that you may have obstructive sleep apnea (OSA), he or she may suggest sleep studies or other tests.
Sleep studies are a series of tests that record what happens to your body during sleep. The most important test for sleep apnea is polysomnography. This test records electrical activity of your brain, eye movement, muscle activity, heart rate, breathing, airflow through your nose and mouth, and blood oxygen levels (saturation). Polysomnography is the only sure way to find out whether you have sleep apnea. For more information, see:
If your sleep apnea has not improved after initial treatment, and if enlarged tissues in your mouth and throat are causing it, your doctor may do one or more tests before suggesting surgery to remove the excess tissue. These tests may include:
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