What is the maximum recommended duration of suctioning for an adult?

• A. 30 seconds
• B. 10 seconds
• C. 15 seconds
• D. 5 seconds

Answer: (C)

Suctioning duration should be brief to prevent oxygen deprivation during airway clearance. For an adult, the maximum time per suction pass is 15 seconds. This limit helps balance clearing secretions with avoiding hypoxemia and bradycardia. If more suctioning is needed, pause to ventilate and re-oxygenate before continuing, and perform additional short passes rather than a long, continuous attempt. In practice, pre-oxygenate with high-flow oxygen, suction during withdrawal rather than insertion, and reassess the patient after each pass.

Less time, like five seconds, can be too short to effectively clear secretions, and a much longer duration like thirty seconds poses a higher risk of hypoxia. While some guidelines differ on the exact number, the upper safe limit used here is fifteen seconds because it provides a practical window to clear the airway while protecting the patient from oxygen loss.