Large animal emergency services are available 24 hours. Please call the office at 613-257-3202. If you have an out of hours emergency, please follow the prompts and you will be directed to the veterinarian on call. Small animal emergencies are available during business hours. After hours please call Ottawa Veterinary Hospital at613-729-6139. For phone advice after hours call the office at 613-257-3202 and follow the prompts.