​More than 525 staff members are dedicated to providing the most advanced and highest quality laboratory services as well as supporting new and innovative approaches to laboratory medicine.

The Laboratory Medicine Program at UHN offers a wide range of service options for health professionals around the world, including ad hoc reference testing, consultation services and service contracts. Our services are supported by the largest diagnostic lab in Canada, a leading-edge laboratory information system, outstanding couriers and a call centre operating seven days a week, 24 hours a day.

Cancer Biomarker Testing

Ordering Tests

Complete one requisition for each patient. When you complete the form, please make a special effort to provide all of the information, legibly and accurately. Please retain a copy of the requisition for your records. If results are to be phoned or faxed, this should be noted on the requisition with the appropriate contact and phone numbers.

Specimens should be delivered to the Laboratory Medicine Program at the address on the requisition. For research projects or for any special esoteric testing needs, please contact the LMP Call Centre at 416 340 4800 ext. LABS (5227) or toll free at 1 866 865 LABS (5227).

Requesting Diagnostic Tissue

The Pathology Client Services (PCS) team is available to assist patients, clinicians and researchers seeking access to diagnostic materials that form part of our hospital record (e.g., stained digital slides, unstained slides, frozen material, extracted DNA, documents, etc.).

How to submit requests:

  1. Fill out the following forms and submit to us by fax (416 340 3023) or email

  2. To allow us to expedite your request as quickly as possible, please complete all sections of the forms. If you need assistance with this, please let us know in your submission.

  3. The request will be assessed and you will be contacted if further documentation is required.
  4. Where fees are applicable a quote will be provided to the requestor and must be signed and returned for the request to be completed.

If materials are being sent to another institution, please ensure the full address, name of recipient, and their contact information is provided. This allows us to contact them on your behalf should we have questions about what the need to extend services to our clients.

If at any time you have questions or concerns, please let us know at or call Darshini Jesudasan at 416 340 4800 ext. 5920.

How to Submit a Specimen

For information on how to submit a specimen, including proper specimen collection, handling and storage information, please contact the LMP Call Centre at 416 340 4800 ext. LABS (5227) or toll free at 1 866 865 LABS (5227).

Please note that the Laboratory Medicine Program adheres to the practice of Universal Precautions and the Transportation of Dangerous Goods Regulations, so samples must have appropriate labelling and packaging.

Reporting Test Results

Reports will be distributed by mail or fax, as per the request indicated on the requisition. We have excellent options available to clients interested in establishing a full or partial service contract with LMP. Please contact us for more information on these options at 416 340 LABS (5227).

Cancellation of Tests

Cancellation requests received prior to test setup or cancellations due to incorrect patient identification will not be charged and no report issued​. Requests received after test setup will be charged accordingly and a report will be issued.

For business inquiries, including research projects or for any special esoteric testing needs:

Rosetta Belcastro, Manager, Pathology and Pathology Research Program