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Laboratory Services

Comprehensive Pathology Services

St. Luke's Hospital Laboratory Services brings together a team of pathologists, technologists and support personnel that are dedicated to putting the patient first and meeting their needs. We provide laboratory services to St. Luke's Hospital, the clinics and specialties in the St. Luke's system and outreach laboratory services in the region. We also collaborate with Mayo Medical Laboratories for our esoteric testing needs.

Services include:

  • Providing STAT and routine testing 24 hours a day, seven days a week
  • Implementing clinically relevant test menus specific to the needs of the community and providers
  • Offering personalized customer service with consultative support from local pathologists and laboratory professionals
  • Providing up-to-date test menus and test methodologies
  • Providing consistent laboratory testing for regional patients

Additional Services Offered

Outreach services

  • For physician offices, clinics, nursing homes and assisted living facilities
  • Daily courier pickup and delivery
  • Multiple draw sites in Duluth and the surrounding region
  • Efficient test ordering and results reporting


  • Prompt clinical and anatomic pathology follow-up by pathologists and clinical specialists, including cytopathologists
  • Senior management consultation resources

Diagnostic services

  • Broad range of tests using state-of-the-art instrumentation and technically proven methodologies with delivery of rapid and accurate results
  • Serving Duluth and surrounding communities in Minnesota, Wisconsin and Michigan

Anatomic services

  • Cytopathology (including thin-layer, liquid-based technology)
  • Fine-needle aspiration biopsies
  • Histology, including immunohistochemical (IHC) techniques
  • Surgical pathology, including frozen section analysis for timely diagnostic information to surgeons


  • Peripheral blood and bone marrow studies
  • Diagnostic and therapeutic monitoring of blood disorders


  • Basic hemostatic testing with rapid access to testing for hereditary bleeding and thrombotic disorders

Clinical chemistry, urinalysis and immunoassay

  • Extensive repertoire of chemical analyte quantification through state-of-the-art instrumentation
  • Nucleic acid testing (polymerase chain reaction)


  • Complete range of organism identification and susceptibility testing
  • Expert consultants in bacteriology and parasitology


  • Pretransfusion testing for blood component therapy
  • Cutting-edge antibody detection methodology
  • Immediate access to regional blood center that provides all blood products and esoteric testing

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