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Full Polysomnography Test

Diagnostic Polysomnography (PSG) – Level 1 Sleep Study

Polysomnography is an overnight sleep study used to diagnose sleep disorders and evaluate the efficiency of their treatment. It is considered to be the gold standard in sleep testing.

The test detects complete and partial respiratory arrests (apneas and hypopneas) and their related drops in blood oxygen levels, micro-arousals, increased respiratory efforts, and many more disruption that occur during sleep. Data acquired throughout the sleep study can lead to the diagnosis of multiple sleep disorders like narcolepsy and restless leg syndrome. Furthermore, polysomnography can be used to fine tune devices like CPAP to ensure that patients are receiving the optimal treatment for their condition.

Polysomnography (in lab sleep study) and respiratory polygraphy (home sleep study) are the two main test used to detect snoring and sleep apnea. They can be prescribed by one of our sleep specialist after your initial consultation.

If you already have a medical prescription for a diagnostic test such as full polygraphy or respiratory polygraphy – contact us now to learn more about the procedures.

Make an appointment now for a complete Polysomnography test >>

What to expect?

Polysomnography is an overnight test that takes place in a specialized sleep center under the supervision of a respiratory therapist.
The technician will place several sensors on your scalp, temples, chest and legs to record all the data needed for your evaluation. You will be monitored throughout the duration of the test (approximately 6 hours).

During the test, the respiratory therapist will monitor many body functions including:

  • Brain waves (EEG)
  • Eye movements (EOG)
  • Chin muscle tone (CEMG)
  • Breathing patterns
  • Snoring or any other noise emitted during sleep
  • Heart rate and blood pressure
  • Blood oxygen levels
  • Body position
  • Muscle activity or skeletal muscle activation (EMG). Frequent leg movements could be an indication of periodic limb movement disorder.

What next ?

After the test, the acquired data is compiled and analyzed by one of our respiratory therapist.

Based on the results, a follow-up appointment may be necessary to discuss treatment options or further testing.

Full polysomnography tests are not indicated for everyone. Alternatives include, home respiratory polygraphy. The latter affords you the comfort of performing the test at home.

Ask your doctor or book an appointment now to learn more about the various alternatives to polysomnography.

Learn more about respiratory polygraphy >>

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