Cathy Petta has been a Registered Nurse (RN) for almost 30 years, and has spent the last 12 years at Holland Bloorview as the RN for the Psychopharmacology Clinic providing nursing support to the clinic and clinic families. She is also an Accredited Positive Parenting Program (Triple P) practitioner and has delivered the Triple P program in one to one, group and seminar formats to many Holland Bloorview parents.

She has also worked on the Autism Treatment Network (ATN) research and clinical project. For this project, she has provided care coordination for families and works on quality improvement initiatives. She was the sleep educator for the ATN sleep study; looking at effectiveness of parent sleep hygiene education in improving sleep in kids on the autism spectrum. She has now adapted this curriculum as a clinical program at Holland Bloorview.