When suctioning a tracheostomy tube, which step is correct?

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When suctioning a tracheostomy tube, the goal is to remove secretions safely without causing hypoxemia or airway trauma. The correct approach is to insert the suction catheter only to the point you meet resistance, then withdraw it while applying suction, and keep each suction pass to a brief duration—about 10 seconds. Suctioning on the way out helps pull secretions into the catheter without pushing them deeper into the lungs and minimizes irritation and potential bronchospasm, while avoiding suction during insertion reduces the risk of mucosal injury or moving debris further down the airway. Short passes of around 10 seconds help maintain oxygenation and prevent significant desaturation. Between attempts, reoxygenate as needed and avoid forcing the catheter to go farther than tolerated; this aligns with safe practice and prevents unnecessary harm.