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Corewell Health Laboratory

General Test Information

  • Critical Values Table
  • Reflex Testing West
  • Reflex Testing South
  • STAT Turn Around Time (Inpatient)
  • Expected Turn-Around Time (Inpatient)
  • Point of Care Testing (limited access)
Test Directory
Important Send Out Updates

The Laboratory Customer Service Centers are available 24 hours a day, 7 days a week, including holidays, to help answer your questions and also to schedule specimen pick-ups.

  • West Michigan: 616.774.7721
  • Southwest Michigan: 269.983.8311 ext 1
  • Southeast Michigan: 800.551.0488  

Additional Resources

  • Financial Resources and Billing
  • Laboratory Locations
  • Integrity Help Line

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