Effective September 1, 2026, patients returning specimens to Corewell Health outpatient laboratory locations will only be able to drop off specimens during the laboratory’s posted business hours.
To ensure appropriate specimen handling, preservation, and timely processing, specimens will not be accepted outside of outpatient laboratory operating hours. Inpatient laboratory staff and laboratory technicians will not accept outpatient specimens after outpatient laboratory services have closed for the day.
We ask that:
This change applies to all outpatient specimen drop-offs at participating Corewell Health outpatient laboratory locations.
Please note that specimens presented outside of outpatient laboratory business hours may be rejected, and patients may be required to recollect their specimen if applicable stability requirements cannot be met.
We appreciate your partnership and assistance in communicating this change to patients. If you have any questions, please contact the Laboratory Services Team.
To help ensure accurate results and avoid specimen collection delays, please note the specific collection requirements for this test. Cyclospora testing requires specific collection and preservative requirements that may differ from routine stool studies. Please ensure your office has the appropriate collection supplies available if you anticipate ordering this test.
As a reminder, in observance of the Independence Day holiday, all Corewell Health Laboratory Patient Service Centers (drawstations) will be closed on Friday, July 3, 2026.
Per our holiday schedule, when a holiday falls on a Saturday, it is observed on the preceding Friday. Therefore, our drawstations will be closed on Friday, July 3, as the observed holiday, and will remain closed on Saturday, July 4.
ffective June 2, 2026, Paraneoplastic Autoantibody Evaluation will no longer be offered by Mayo. The recommended alternate test will be the Encephalitis Antibody Evaluation performed at Quest.
Due to the short notice from Mayo, the new Quest test will not be orderable so will need to be ordered as a Reference Lab Sendout for Miscellaneous Test.