The parameters of interest that are usually monitored during sleep are as follows:
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1.
REM: Electro-oculogram of rapid eye movement to determine depth or stage of sleep.
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2.
Respirations: rate, tidal volumes, chest excursion.
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3.
ECG monitoring mainly for rate and arrhythmia.
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In particular cases, more comprehensive evaluations include:
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a.
Electroencephalogram (EEG).
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e.
Arterial blood gas analysis.
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f.
Oral and nasal respiration.
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g.
Chest and abdominal excursion.
The finding of obstructive sleep apnea under this comprehensive monitoring provides
an improved diagnostic technique for evaluation of impairments of the cardiopulmonary
system.