FREQUENTLY ASKED QUESTIONS

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A polysomnogram is a type of sleep study that

records your sleeping patterns. Each study may

vary depending on your needs and the physicians'

request. PSG recordings include:

1. Electroencephalogram (EEG) – Records brain wave activity and prominent features of wakefulness and sleep. The two main states of sleep are non-REM (N1, N2 and N3) and REM sleep.
2. Electrocardiogram (EKG) – Records heart rate and heart rhythm
3. Electro-occulogram (EOG) – Records activity and movement of the eyes.
4. Electromyogram (EMG) – Chin EMG detects the muscle tone of the chin and jaw area, helping to distinguish between non-REM from REM sleep, also detects teeth grinding. Leg EMG detects foot and leg movements useful in diagnosing Periodic Limb Movement Disorder or Restless Leg Syndrome.
5. Thermister / Air flow transducer – Placed directly underneath the patient’s nose to produce a waveform based on the patient's airflow or breathing.
6. Respiratory Belts - thin belts placed around the chest and abdomen to monitor respiratory effort.
7. Pulse Oximetry – non-invasively measures oxygen saturation of hemoglobin (red blood cells) in the blood.

Your sleep patterns can give us valuable information. Disrupted sleep can disturb your activities of daily living. These recordings provide your physician with the information needed to make your diagnosis.

Surprisingly enough, most people sleep through the night. The sensors are applied so that you may move freely during sleep. The Space Coast Disorders Center staff strives to make the sleeping area as comfortable as possible for you. Once settled in bed, you should have a good night's sleep.