Dr. Hanselman graduated from the DVM program at the Ontario Veterinary College, University of Guelph in 2001, where she received the Andrew Smith Memorial Medal for academic and clinical achievement.

Following graduation, Dr. Hanselman was employed as a small animal veterinarian in Burlington for two years. Dr. Hanselman subsequently returned to the Ontario Veterinary College in 2003 to complete a one-year rotating internship in small animal medicine and surgery, followed by a three year clinical residency and DVSc in small animal internal medicine.

Board certification with the American College of Veterinary Internal Medicine was achieved in 2007. Dr. Hanselman has completed a DVSc thesis on methicillin-resistant Staphylococcus aureus.