A staff nurse is observing a newly licensed nurse suction a client's tracheostomy. Which of the following actions by the newly licensed nurse requires intervention by the staff nurse?

A. Suctioning should be applied for no more than 10-15 seconds to prevent hypoxia. Prolonged suctioning can cause airway trauma and a decrease in oxygen saturation. B. Encouraging the client to cough helps to clear the airway and is a positive action. C. Waiting for 2 minutes between suctions is appropriate to allow for reoxygenation of the client. D. Inserting the catheter without applying suction is the correct technique, as suction should only be applied when the catheter is withdrawn.