Our UHN programs and services are among the most advanced in the world. We have grouped our physicians, staff, services and resources into 10 medical programs to meet the needs of our patients and help us make the most of our resources.
University Health Network is a health care and medical research organization in Toronto, Ontario, Canada. The scope of research and complexity of cases at UHN has made us a national and international source for discovery, education and patient care.
Our 10 medical programs are spread across eight hospital sites – Princess Margaret, Toronto General, Toronto Rehab’s five sites, Toronto Western – as well as our education programs through the Michener Institute of Education at UHN. Learn more about the services, programs and amenities offered at each location.
Maps & Directions
Find out how to get to and around our nine locations — floor plans, parking, public transit, accessibility services, and shuttle information.
Ways You Can Help
Being touched by illness affects us in different ways. Many people want to give back to the community and help others. At UHN, we welcome your contribution and offer different ways you can help so you can find one that suits you.
The Newsroom is the source for media looking for information about UHN or trying to connect with one of our experts for an interview. It’s also the place to find UHN media policies and catch up on our news stories, videos, media releases, podcasts and more.
Bring with you to your appointment your:
You will be given a form to fill out. This form contains questions about your background. We collect this information to find out who we serve and what unique needs you may have.
The form is voluntary and you can choose ‘prefer not to answer’ to any or all questions. However, the information you chose to give us will help us improve the quality of care for you and others.
Check in with Nuclear Medicine Reception 15 minutes before your appointment.
After you have checked in, a technologist will inject a small amount of radioactive material, called a tracer, into a vein in your hand or arm.
Female patients: Please tell the technologist if you are pregnant or breastfeeding before receiving the injection.
Some pictures of your bones may be taken as soon as you have received the tracer.
After the injection the receptionist will give you a time to return to the Nuclear Medicine area. This time will be between 2 and 3 hours after the injection. You can leave the Nuclear Medicine area once you know when you need to return.
During the waiting period after the injection your bones will absorb the radioactive tracer, allowing them to show up clearly on the pictures the technologist will take. We ask that you drink five cups of fluid and empty your bladder often while you are waiting for your bones to absorb the tracer. This will help flush out any of the tracer that is not absorbed into your bones.
When the waiting time is over, return to the Nuclear Medicine area and check back in with the receptionist. The technologist will then take you to the scan room. The technologist may ask you to change into a hospital gown.
The technologist will ask you to lie on a scanning bed. The technologist will then start taking pictures with the gamma camera. This can take between 30 and 60 minutes. The camera may move around you during the scan. You may also be asked to move or change positions during the scan.
You can resume your normal daily activities after the scan. Bone scans have no known side effects.
The technologist uploads and processes your scan pictures to a computer database. A nuclear medicine physician or then writes a report on what the bone scan shows and faxes this report to your doctor. Your doctor will give you the results of the scan. The technologist cannot give you the results when your scan is finished.
The bone scan can last up to 1 hour. Your entire appointment (including waiting time) can take between 3 and 5 hours.
We do our best to stay on time. Unfortunately, your appointment may be delayed by unforeseen circumstances. We recommend that you come prepared for delays. For example, make sure your arrangements for things like babysitting, elder care and parking can accommodate a longer than usual appointment.