The MOST significant complication associated with oropharyngeal suctioning is:

• A. Oral abrasions from vigorous suctioning.
• B. Vomiting from stimulating the anterior airway.
• C. Hypoxia due to prolonged suction attempts.
• D. Clogging of the catheter with thick secretions.

Answer: (C)

Oropharyngeal suctioning is meant to clear secretions without compromising oxygenation, but the act can disrupt ventilation and rapidly reduce oxygen levels. The most significant risk is hypoxia from prolonged or repeated suctioning passes, especially if the patient isn’t preoxygenated or if suctioning lasts longer than needed. To minimize this, provide brief suction passes (short durations when possible) and promptly re-oxygenate between passes, while monitoring oxygen saturation closely. This risk of a drop in oxygenation eclipses other potential issues like minor mucosal irritation, gagging or vomiting from airway stimulation, or catheter clogging, which are less life-threatening in comparison.