1. Multichannel polysomnographic recording
Multichannel polysomnographic recording. The tracings (top to bottom) include four electroencephalogram channels, chin muscle tone movement (submental electromyogram), nasal airflow, thoracic wall movement, abdominal wall movement, end-tidal carbon dioxide, electrocardiogram, pulse oximeter waveform, saturation, and tibial electromyogram. There are multiple episodes of obstructive apnea with associated oxyhemoglobin desaturation depicted in this 2-minute epoch. (Reproduced with permission from Johnson JT, Gluckman JL, Sanders MH, eds. Management of Obstructive Sleep Apnea. London: Informa; 2001:46.)
Source: Pulmonary Function Testing, Comprehensive Pediatric Hospital Medicine, 2e
Citation: Zaoutis LB, Chiang VW. Comprehensive Pediatric Hospital Medicine, 2e; 2017 Available at: Accessed: October 24, 2017
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