It is within the scope of practice of an appropriately trained and competent licensed practical nurse to perform routine and non-complex respiratory therapy procedures under the direction of an authorized health care practitioner, or under the direction and supervision of the registered nurse, following clinical practice standards. It may be within the scope of practice for the licensed practical nurse to perform respiratory therapy procedures and activities such as administering or adjusting oxygen settings, adjusting ventilator settings, nebulizer treatments, suctioning, chest physical therapy, nebulizer treatments, intermittent positive pressure breathing therapy, or pulmonary function testing. Medical regimens require a prescription or order from an authorized health care practitioner. The licensed practical nurse should use the Scope of Practice Decision Tree to determine if these activities are within the nurse's legal and individual scope of practice. The licensed practical nurse may not use the title of respiratory therapist unless the nurse is dually licensed.