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The Diagnostic Test Centre/Blood Collection Lab will take samples of your blood and will send them to be tested. The samples will be tested to learn more about your condition and help guide discussion about your diagnosis and treatment.
When you arrive at the Diagnostic Test Centre/Blood Collection Lab, check-in with the receptionist. To check-in, you need your:
After you check-in, we will give you a number. You can then sit down in the waiting area. While you wait, we will confirm that your orders are in the electronic patient record. If there are discrepancies, you will be notified. Within reason, we will take the appropriate actions to ensure the orders reflect the nature of your visit.
When it is your turn, we will call your number and direct to you a lab cubicle. The technician will ask your name, date of birth, and possibly your address. We do this to confirm identity so the proper testing will be done.
Then the technician will check your electronic orders and any written orders if you have a requisition. The technician will draw your blood sample by:
The technician may fill several small vials or tubes with your blood. The same needle stays in your arm while the different vials are filled. The technician will release the tourniquet as the vials fill.
If you feel faint, dizzy or unwell at any time during the blood drawing process, tell the technician immediately.
When the technician has collected all the blood samples, they will remove the needle from your arm. The technician will ask you to press on the spot where the needle went in with some cotton batting. Press on the area without bending your arm – this will reduce bruising. If you notice bruising after you have left the hospital, put ice on the area.
Once any bleeding has stopped, the technician will put a bandage over the area. If you notice bleeding after you leave, please return to the Blood Collection Lab.
A visit to the Diagnostic Test Centre/Blood Collection Lab can take up to an hour, sometimes longer. The blood test itself only takes a few minutes, but sometimes the waiting area is busy.
We do our best to see you as soon as possible. Unfortunately, line-ups can be unpredictable. We recommend that you come prepared for delays.
As soon as we get the results of your blood tests, they are automatically added to your Electronic Health Record. Results of urgent tests are usually available within an hour of collection. Results of routine tests may take 2-4 hours or longer. As soon as the results are in your health record, your team will be able to view them.
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Visit our Health Information section and find dedicated resources to help you understand your condition. Find the information you're looking for.
Toronto General HospitalDecember 19 - 23: 7:00 am - 3:00 pm (regular hours)December 28 - 30: 7:00 am - 3:00 pm (regular hours)
Toronto Western HospitalDecember 19 - 23: 7:00 am - 3:00 pm (regular hours)December 28 - 30: CLOSED
Princess MargaretDecember 19 - 23: 7:00 am - 5:00 pm (regular hours)December 28 - 30: 7:00 am - 5:00 pm (regular hours)
All sites resume regular hours on January 3, 2023.
You will be contacted with information about your first appointment.
Please bring the following to your appointment. Not all of these items may be needed for your appointment. Our clinic or your referring doctor will let you know what you must bring.
Please arrive 15 minutes before your appointment.
When you arrive, you will sign in with the receptionist. You will need your health card (OHIP card) to sign-in. If you do not have an OHIP card, please bring another form of government-issued photo ID, such as a driver’s license or passport.
You may be given a Measuring Health Equity Questionnaire 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 choose to give us will help us improve the quality of care for you and others.
First appointments take longer than follow-up appointments. Your first appointment can take 2 hours or more. Follow-up appointments usually take 15 to 30 minutes. We do everything we can to stay on time but sometimes unforeseen circumstances may delay your appointment.
At the end of your first appointment, the nurse or doctor will give you a contact list for your health care team. If you don’t get a contact list, feel free to ask for it.
After every appointment, a member of your health care team will tell you about your next visit. Be sure you understand what is going to happen next. For example, know the time and place of your next visit or if someone will call you with this information.
If you are unsure about what your next steps are, don’t be afraid to ask a member of your team. We are here to help you.
We understand that reaching us by phone can sometimes be difficult. Often our phone lines are busy or are turned over to the message centre so our staff can prepare for clinic visits or help other patients. We make every effort to return your call within 24 hours. Our staff will try to reach you 2 times. If we are not able to reach you directly you may need to call us again.