College of Respiratory
Therapists of Ontario



Professional Practice Guideline



May 2019


College of Respiratory Therapists of Ontario (CRTO) publications contain practice parameters and standards that should be considered by all Ontario Respiratory Therapists (RTs) in the care of their patients/clients and in the practice of the profession. CRTO publications are developed in consultation with professional practice leaders and describe current professional expectations. It is important to note that these CRTO publications may be used by the CRTO or other bodies in determining whether appropriate standards of practice and professional responsibilities have been maintained.


Resources and references are hyperlinked for convenience and referenced to encourage exploration of information related to individual areas of practice and/or interests. Bolded terms are defined in the Glossary.

It is important to note that employers may have policies related to orders for medical care. If an employer’s policies are more restrictive than the CRTO’s expectations, the RT must abide by the employer’s policies. Where an employer’s policies are more permissive than the expectations of the CRTO, the RT must adhere to the expectations of the CRTO.


    This Professional Practice Guideline will be updated as new evidence emerges or as practice evolves. Comments on this guideline are welcome and should be addressed to:
    College of Respiratory Therapists of Ontario, 180 Dundas Street West, Suite 2103, Toronto, Ontario M5G 1Z8
    Phone 416-591-7800 | Toll Free 1-800-261-0528 | Fax 416-591-7890 | E-mail