What is the appropriate technique for suctioning a tracheostomy tube?

Choice A rationale Forcefully inserting the suction catheter can cause tracheal and bronchial trauma, leading to mucosal injury, bleeding, and increased risk of infection. The catheter should be inserted gently and smoothly until resistance is met or the patient coughs, indicating it has reached the carina, to minimize tissue damage and prevent complications. Choice B rationale Hyperoxygenating the patient before and after suctioning with 100% oxygen helps to prevent hypoxemia, which can be caused by the temporary removal of oxygen during the procedure. Limiting each suction pass to 10 seconds or less minimizes the duration of oxygen deprivation and reduces the risk of serious complications like arrhythmias and cardiac arrest. Choice C rationale Inserting the catheter until it reaches the carina, which is a highly sensitive area, can induce a strong cough reflex, bronchospasm, and cause significant mucosal damage. The correct technique involves advancing the catheter until resistance is met or the patient coughs, then withdrawing it slightly before applying suction to avoid direct contact with this sensitive area. Choice D rationale Applying continuous suction while inserting the catheter can damage the delicate tracheal mucosa. This practice strips away the protective mucus layer, leading to mucosal bleeding, swelling, and increased risk of infection. Suction should only be applied as the catheter is being withdrawn to effectively clear secretions without causing injury.