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Human Reference Manual

6/30/23: OMSP20 test code is currently non-orderable due to issues with the Zinc Proto. portion of testing. If this testing is desired place separate orders for the Occupational Blood Lead (OMBL) and MISC to ARUP for 0020605 Zinc Protoporphyrin.
9/29/23: Effective 2/22/23: Due to instrument issues at Mayo Labs Pregnenolone, Serum (PREGNSO) testing will be delayed. Specimens have been stabilized at Mayo and may take longer to be resulted.
9/29/23: Effective 4/5/23: Due to assay issues, reporting of Aldosterone (ALDSSO) will be delayed at Mayo Labs. Specimens are still being tested, but results will take longer than established TAT.
9/29/23: Effective 2/22/23: Due to instrument issues at Mayo Labs,17-Hydroxypregnenolone, Serum (17OHPSO) testing will be delayed. Specimens at Mayo have been stabilized and make take longer to be resulted.
9/29/23: Effective 5/5/23: NGSHMSO: MayoComplete Myeloid Neoplasms, Comprehensive OncoHeme NGS, Varies is currently delayed at Mayo Labs. Report available times may be exceeded.
6/30/23:  Effective 5/17/23: Temporary shortage of Group A Strep Nucleic Acid Test kits (GASNAT); when kit supply is depleted testing will be completed by Culture, Group A Strep Only testing (1-3 day report delay).
9/29/23:  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.
Effective 8/14/23, Methadone toxicology screening won't be performed for a temporary timeframe due to reagent shortage. Confirmatory testing (CO-METD) will still be available if methadone testing is desired. Affects: DAS, PCS1O, DASWO, PCSMIN, PCS10WO
9/29/23:  Effective 8/11/2023:  Per Mayo Clinic Labs:  Due to a reagent supply issue, Vasoactive Intestinal Polypeptide, Plasma Test ID VIP will be non-orderable.  An update will be provided when testing resumes.  Recommended alternative:  FVIPL
9/15/23:  Effective 9/15/23:  Per Mayo Labs Tyroid-stimulating Immuglobulin, S (Test ID TSI) is temporarily delayed due to a reagent validation delay. All Orders are being processed. Turn around times are expected to return to normal by week of 9/25/2023
Effective 11/6/23: BIOTESO is delayed due to instrument issues with reporting of the free testosterone. Specimens at Mayo Labs have been stabilized and may take longer to be resulted.
11/21/23: Effective 11/14/2023: Due to a nationwide reagent shortage, the following tests will be batched and run on Fridays through December 2023: EBVCOMP, EBVCGM
Effective 11/27/23: LEGPSO (Legionella species, Molecular Detection, PCR, Varies (LEGRP)) to Mayo Labs is non-orderable due to manufacturer reagent delay.  Order recommended alternative: MISC, Test ID:  FLEGQ to Mayo.  Mayo will forward testing to ARUP.
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Laboratory News Vol 43 No 10-November 2, 2020.pdfLaboratory News Vol 43 No 10-November 2, 2020
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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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