Effective Tuesday, May 26, 2026, outpatient occult blood testing (stool) will no longer be performed at Corewell Health Lakeland St. Joseph Laboratory and will instead be routed or mailed to Corewell Health Reference Laboratory in Grand Rapids, MI (35 Michigan St.) for processing.
In addition, the collection kits will be updated from OC-Light™ S FIT collection kits to OC-Auto™ collection kits.
The personal-use packet will continue to include collection instructions and mailing kit.
For additional details, please refer to the Laboratory Test Catalog and collection instructions available at:
- Occult Blood FIT Screening Stool
- Occult Blood FIT Diagnostic Stool
- FIT Kit Collection Instructions (English)
For questions or further information, please contact Laboratory Client Services for the Southwest Corewell Health region:
- (269) 983-8311, ext. 1
- (800) 513-9193
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