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Colorectal Cancer Screening

Fecal Immunochemical Test (FIT)

FIT is a safe and painless stool-based test used for screening people at average risk of developing colorectal cancer. FIT checks for the presence of occult blood in the stool, which can be an early sign of colorectal cancer and/or pre-cancerous lesions. When colorectal cancer is found and treated early, the chances of successful treatment are better. Healthcare providers should fax the FIT requisition to 1-833-676-1427

How is the test performed?

A stool sample


Primary care providers can begin sending new fecal immunochemical test (FIT) requisitions to LifeLabs for all eligible people at average risk for colorectal cancer.

Due to ongoing COVID-19 safety precautions and potential delays in FIT kit mailing, people may experience delays in receiving a FIT kit. To avoid longer wait times, we ask that primary care providers do not batch fax requisitions.

Ongoing fluctuations in COVID-19 cases and local variation in COVID-19 trends are expected. Primary care providers are encouraged to consider local trends in COVID-19 transmission and local capacity for diagnostic services (e.g., colonoscopy) prior to initiating colorectal cancer screening.

Primary care providers should remember the following when sending in requisitions:

  • Include a valid OHIP number with an updated version code
  • Ensure the completeness and accuracy of your patient’s mailing address information (including an alternative mailing address for the FIT kit, if applicable)
  • LifeLabs will continue to process all FIT requisitions received as fast as possible. If you have recently sent a FIT requisition for your patient, please do not send a repeat order unless at least 4 to 6 weeks have passed and your patient has not already received a FIT kit, as there remains the potential for mailing delays resulting from COVID-19. Sending a duplicate requisition could cause further delays.
  • The gradual reintroduction of routine cancer screening is consistent with the Ministry of Health’s direction allowing for a gradual restart of deferred services. Tip sheets have been developed for healthcare providers to guide the reopening of breast, cervical and colorectal cancer, please email if you would like a copy.


    • Call CCO toll-free: 1-866-662-9233 Monday to Friday, 8:30 a.m. to 5 p.m.
    • Send CCO an email at
    • For information about COVID-19, please visit the Ontario Ministry of Health.

As of June 24, 2019 FIT will be the recommended screening test for people at average risk of getting colorectal cancer*. FIT will be available across the province through Cancer Care Ontario’s organized colorectal cancer screening program, ColonCancerCheck.

FIT is a safe and painless stool-based test used for screening people at average risk of developing colorectal cancer. Specifically, FIT checks for the presence of occult blood in the stool, which can be an early sign of colorectal cancer and/or pre-cancerous polyps.

*Average risk is defined as people ages 50 to 74 with no first-degree relative who has been diagnosed with colorectal cancer.

Primary care providers can order a FIT kit for eligible, average risk people by completing a FIT requisition.

  • The FIT requisition is a single-test, program-branded requisition.
  • FIT cannot be ordered using the Ministry of Health and Long-Term Care Laboratory Requisition or a hospital laboratory requisition.

The FIT requisition is available at Cancer Care Ontario’s website.

Primary care providers can use the FIT requisition to indicate if the FIT kit should be mailed to an alternate address, which may differ from their patient’s primary mailing address (e.g., health centre or nursing station).

Primary care providers are responsible for validating patient address information and date of birth before completing the requisition. This validation is critical to ensure that LifeLabs and ColonCancerCheck have up-to-date participant mailing information so that the privacy of patients is not compromised and participants can receive their FIT kit and test result notification.

Completed FIT requisitions must be faxed directly to LifeLabs’ FIT line (fax: 1-833-676-1427) or submitted by certified electronic medical record.

Primary care providers will not maintain an inventory of FIT kits. Centralized distribution through LifeLabs facilitates inventory management and allows for pre-labeling, which will reduce labeling errors.

If you have not ordered lab tests through LifeLabs previously, or are unsure if you are in the LifeLabs database, please call and give us the following information before you start faxing the FIT requisitions for your patients:

  • Physician billing number (must be an Ontario billing number only)
  • Indicate whether you are a doctor or nurse practitioner
  • Last name
  • First name
  • Full address including – Suite number/Address number/Street/City/Province(ON)/Postal code
  • Phone number
  • Fax number
  • Indicate to us that you’re asking for FIT

You may share this information with us in the following ways:

  • By calling our dedicated FIT Helpline (Ph: 1-833-676-1426)
  • By calling our LifeLabs Customer Care Centre and specifying that you’re registering for FIT (Ph: 1-877-849-3637)

To receive results electronically via your EMR system, please have your EMR vendor contact the LifeLabs IT Service Desk (Ph: 1-800-465-6001)

To get setup with Launchpad, LifeLabs’ 24/7 free physician portal, please register here.

As of June 24, 2019, ColonCancerCheck (CCC) will no longer recommend that people at average risk of colorectal cancer screen with gFOBT. Although there is high-quality scientific evidence to support screening with gFOBT, the fecal immunochemical test (FIT) offers several advantages over gFOBT:

  • Patients prefer FIT because it is easier to use
  • FIT is better at detecting colorectal cancer and pre-cancerous polyps than gFOBT

CCC gFOBT laboratory providers will arrange the removal of unused CCC gFOBT kits from primary care provider offices once FIT becomes available as the recommended screening test for people at average risk of getting colorectal cancer. Primary care providers should not distribute unused CCC gFOBT kits once FIT becomes available.

CCC gFOBT laboratory providers will continue to test CCC gFOBT kits for six months after FIT becomes available as the recommended screening test for people at average risk of getting colorectal cancer. This will ensure that most participants who complete their CCC gFOBT kit after FIT becomes available can still receive their CCC gFOBT result.

 CCC gFOBT kits returned after six months will be rejected by CCC gFOBT laboratory providers. Primary care providers will be notified if a CCC gFOBT kit is returned from a patient beyond six months from when FIT becomes available.

For a comprehensive list of gFOBT decommissioning frequently asked questions, visit the Cancer Care Ontario’s website.

Laboratory reports to providers include standard messaging for fecal immunochemical test (FIT) results and recommended next steps. FIT results are reported qualitatively as normal, abnormal, invalid or rejected.

If the result is normal, patients should be re-screened with FIT in two years if they continue to meet the ColonCancerCheck eligibility criteria for average risk colorectal cancer screening.

If the result is abnormal, patients should be referred to colonoscopy as soon as possible. The colonoscopy should be completed within eight weeks of the abnormal FIT result.

If the result is invalid* or the FIT collection device is rejected**, the report will provide the specific reason for the unsatisfactory test result. Primary care providers should promptly submit a new FIT requisition for their patient and counsel them if they need help completing their next test successfully.

*Invalid FIT result: The FIT collection device was tested but a valid result could not be obtained (e.g., too much sample or result below the positivity threshold with no specimen collection date).

**Rejected FIT collection device: The FIT collection device was not accepted for testing by LifeLabs (e.g., specimen leaking, FIT collection device not opened).

For more information on screening with the fecal immunochemical test (FIT) visit Cancer Care Ontario’s website at this link.

For access to resources (including the FIT requisition) for primary care providers, nurses and specialists visit Cancer Care Ontario’s website at this link.

For information on colonoscopy and abnormal FIT results visit Cancer Care Ontario’s website at this link.

To download the FIT instructions in different languages visit Cancer Care Ontario’s website at this link.

Our medical experts and account managers are available to support you in selecting the appropriate tests and services for your practice. LifeLabs offers pathology services, general and advanced diagnostics, genetics testing and mobile laboratory services.

Consultations with our experts are available upon request. Request a medical consultation.

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