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Suctioning: Airway

Airway Management

Suction involves the application of negative pressure (vacuum) to the airways through a collecting tube
Airway obstruction can be caused by Retained secretions Foreign bodies Structural changes
Retained secretions Increase work of breathing Increase airway resistance
Retained secretions also Hypoxemia -Hypercapnia -Atelectasis -Infection
Suctioning can be performed in either The upper airway (oropharynx) The lower airway (trachea and bronchi)
Suction pressures Infant: -80 to -100 mmHg Child: -100 to -120 mmHg Adult: -120 to -150 mmHg
Catheter Size “Rule of Thumb” estimate the proper size of suction catheter to use with a given tracheal tube, first multiply the tube’s inner diameter by 2 then use the next smallest size catheter