After your consultation, you may be asked to come in for diagnostic and/or therapeutic tests. Diagnostic tests are done at the sleep clinic and are designed to help determine whether or not you have a sleep disorder. Therapeutic studies are designed to provide relief for a diagnosed sleep disorder. Here are some of the tests we may perform:
- Polysomnogram, a diagnostic sleep study performed in the clinic. It is used to evaluate sleep stages and diagnose sleep disorders such as insomnia, snoring and sleep apnea.
- Continuous Positive Airway Pressure (CPAP) Titration, a therapeutic sleep study performed at the clinic. Your sleep is monitored while you are on CPAP therapy to determine the effectiveness of your sleep disorder treatment.
- Split-night polysomnogram/CPAP combines the two previously described sleep studies. The diagnostic part is done for three hours, and then you are put on CPAP for the remainder of the study.
- Tests for sleepiness:
- Mean Sleep Latency Test (MSLT) done as a series of naps and is used to assess daytime sleepiness.
- Maintenance of Wakefulness Tests (MWT), used to measure the level of alertness you have during the day. It shows whether or not you are able to stay awake for a defined period of time.
- Testing at home
A polysomnogram measures:
- Brain Waves (EEG)
- Heart Rate (EKG)
- Eye Movement (EOG)
- Muscle Movements (EMG)
- Limb Movements (EMG)
- Breathing (Nasal/Oral)
- Breathing (Respiratory Effort)
- Blood Oxygen Levels (Sp02)
- Esophageal Pressure (PES)
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