Respiratory Therapist;more than just Breathing Treatments

Is a Respiratory Therapist (RT) more than just a breathing treatment provider? So I have had experience in nursing for over 20 years and have specialized in Infusion Therapy for over 6 years. Recently, I was teaching an IV class in which the facility was using a Respiratory Therapist to insert and maintain their PICC's. I was a little taken aback by this discovery as I have never heard of such a thing. Well I contacted the California Board for Respiratory Therapist and they responded back fairly quick and the following was their response; "Good afternoon Mr. Stansbury. The Respiratory Care Board of California (Board) often receives inquiries related to PICC and central line insertion. In its responses the Board has stated that that licensed respiratory care practitioners are authorized to insert and care for PICC lines, so long as appropriate training, guidelines, and competencies are provided/documented by the licensed health care facility ...