A nurse is preparing to perform suctioning for an infant who has a partial mucus occlusion of her tracheostomy tube. Which of the following actions should the nurse plan to take?

Choice A reason: When suctioning a tracheostomy tube, it's important to limit the suctioning time to 3 to 4 seconds to avoid hypoxia and trauma to the airway. Choice B reason: Sterile technique, not clean technique, is used when performing tracheostomy suctioning to prevent infection. Choice C reason: The catheter should be sized appropriately for the tracheostomy tube, but it should not fit too snugly to avoid causing trauma to the airway. Choice D reason: Instilling saline prior to suctioning is not recommended as it can lead to complications, including aspiration and increased risk of infection.