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Human Reference Manual

  
2/9/24:  Effective 7/17/23: MISC: Plasminogen Activator Inhibitor Antigen, Plasma (PAI1) to Mayo Labs is delayed due to instrument issues. Test will remain orderable and specimens will be stabilized until testing resumes.
2/9/24: Effective 12/14/23  DIAZSO (DIA to Mayo) is non-orderable due to instrument issues and assay redevelopment.  Alternative Test: Diazepam and Metabolites, Serum. Referral Lab Code: 1501SP, TEST ID: ZW86. Order a MISC. Mayo forwards to NMS 
2/9/24: Effective 12/14/23  CLONSO (CZPS to Mayo) is non-orderable due to instrument issues and assay redevelopment.  Recommended alternative: Clonazepam and Metabolite, Serum.  TEST ID: FCLMS to Mayo ordered as a MISC in Cerner.
Effective 2/28/24: HPPSO: Pancreatic Polypeptide, Plasma test is experiencing delays due to assay issues. Specimens will be stabilized upon arrival at Mayo Clinic Labs & be tested once issues are resolved.
Effective 8/23/24: Due to increased test volume, ZT4DIAL at Mayo has been placed in a temporary down. Mayo's recommended alternative test id: FFT4F.
Effective 10/9/24: Per Mayo Labs: due to a nationwide reagent unavailability, test code ALCHLSO, (Chili Pepper, IgE, Serum (CHILI)) will become non-orderable. The expected duration for this test being down is indeterminate.
Effective 12/24/24:  Per Mayo Labs: STONEM (Test ID: KIDST) turnaround times have been temporarily extended to 8-10 days.  An update will be provided as soon as normal testing patterns resume.
Effective 2/24/25: Per Mayo Labs: Due to technical difficulties FMMPPSO and FMYO3SO referred to Esoterix Endocrinology will have their normal turnaround time extended beyond 14 days.
Effective 1/23/25:  Per Mayo Labs PASASO component VGKC (Neuronal (V-G) K+ Channel Ab, S) will be reported as test not performed (TNP) due to supply chain issues. The issue expected to last >30 days.  Recommended alternative test:  ENS2SO. 
Effective 1/31/25: Felbamate (FELB) testing will be delayed due to an analyzer down. Testing is estimated to resume after 2/17/24.
Effective 1/31/25: Due to reagent issues Serotype 19A (57) is not being reported for PN23MSO.
Effective 2/19/25: Per Mayo Labs: Expect delays for test DBS1SO due to supply chain issues. Specimens will be stabilized upon arrival and testing performed when issues are resolved. The duration of this delay is expected to be ~ 7-14 days.
Effective 3/6/25: Due to reagent shortage testing is delayed for the following assays: ESTRAD, TA-TPO, and CA19-9.
Effective 3/12/25: Due to instrument issues test results will be delayed for EZNT8SO. Specimens will be held until assay issues are resolved.
Effective 3/18/25: BNP collected in Marshfield will have an extended TAT due to specimens being routed to Eau Claire to be tested. This delay is expected to last for a few days.
Effective 3/18/25: The following test will be delayed at Marshfield due to an instrument down: AFP, AFP-1, AFP-4, CA19-9, AM-CORT, PM-CORT, ACTH Stim. tests, CPEP, PSA-F, PROLAC, T-4, and TA-TPO.
  
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Welcome to Marshfield Labs - Reference Services

Marshfield Labs Reference Diagnostics was established in 1973 to serve the needs of physicians throughout Wisconsin, Upper Michigan and Eastern Minnesota. We are a division of the Marshfield Clinic, a highly regarded private medical and research institution, located in Central Wisconsin.

As part of a large medical and research institution, we offer a comprehensive menu of laboratory tests. Our Research Foundation promotes the development of new assays; continually expanding our list of available tests. Guidance in interpretation and utilization of our extensive test menu is provided by our team of pathologists and PhDs.

Working together to meet your needs every day is the goal of our Marshfield Lab staff. We support diagnostic laboratory medicine by providing:

  • An extensive test menu of over 1000 clinical and anatomic tests procedures
  • Accurate and timely testing
  • Convenient pickup through ground and air courier services
  • Results when you need them online, fax, interfaced
  • Access to our service through our Web Portal

We look forward to working with you.

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