What technique should the nurse use when performing nasotracheal suctioning for the patient?

The correct answer is B: Apply intermittent suction when withdrawing the catheter. This technique helps prevent mucosal damage and hypoxia by reducing the risk of excessive suction pressure and prolonged suction time. Inserting the catheter while the patient is swallowing (A) can lead to aspiration. Placing the catheter in a clean and dry location for later use (C) is incorrect as it can lead to contamination. Holding the suction catheter with the non-dominant hand (D) is not necessary for effective suctioning.