In Ontario, NPs are authorized under legislation and regulations to independently: Complete a comprehensive health history and assessment; Formulate and communicate a diagnosis, taking a differential diagnosis into consideration; Prescribe all medications including controlled drugs and substances; Dispense, sell, and compound medications; Set and cast fractures and dislocated joints; Order and interpret all laboratory tests; Admit, treat and discharge patients from hospitals; Order some diagnostic imaging tests; and Consult with and refer directly to specialists Click here to read more about our Nurse Practitioner services.