Respiratory Therapists work within a hospital-based setting, where they perform a variety of functions, such as providing life support for patients who cannot breathe on their own, assisting in high-risk births, assisting anesthesiologists in the operating room and conducting tests to measure lung function. The Diploma in Respiratory Therapy (Dip. RT) program is a three-year applied diploma, including a yearlong practicum during which student train alongside professionals in the field.