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Human Reference Manual

07/26/22: Effective 5/10/21: PAI1SO is non-orderable immediately per Mayo due to a manufacturer supply backorder. Alternative test: MISC: FPAI1
07/26/22: Effective 6/25/21 Mayo made the following test code non-orderable: MDSF (FMDSSO) (recommended alternative FFMDS). Recommended alternative tests to be orded as MISC.
07/26/22: Effective 7/23/21 per Mayo Labs due to high specimen volumes and staffing impacts, expect TAT delays up to 5 weeks longer than published for test UROVYSO (FUROC). Samples will be stabilized and performed/reported as soon as posssible.
07/26/22: Effective: 8/3/21 BLOSHSO (PBZP) is non-orderable (reagent issues). Alternative test options: ZW86 (Light Sensitive), Referral Lab Code: 2490B to Mayo; or ZW242, Referral Lab Code: 0025016 to Mayo; order as a MISC.
07/26/22: OMSP20 test code is currently non-orderable due to Mayo down for 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.
07/26/22: Per Mayo labs, potential reflex test SBL cannot be performed due to reagent backorder. If reflexing criteria is met, sample will be forwarded to Quest Diag. Infectious Disease, test ID FBAI. An update will be provided when testing resumes.
07/26/22: Effective 01/11/2022: Due to reagent issues, Aldolase (ALDO) testing will be sent to Mayo Clinic Laboratories.
07/26/22: Effective 4/8/22: Due to supply issues Mayo test Aluminum, Serum, AL (Marshfield code ALUM) is currently non-orderable. Alternate test is available to LabCorp 071548; order as MISC.
07/26/22: Effective 04/21/22-Due to supply issues, test Selenium (Mayo code SES, Marshfield code SELEN) is currently non-orderable. Alternate test is 716910 for Selenium, Serum or Plasma to LabCorp. Order as MISC.
07/26/22: Effective 04/26/22: Due to supply issues, test Iodine, Serum (Mayo code IOD, Marshfield code IODSO) is currently non-orderable. Alternate test is 070034 for Iodine, Serum or Plasma to LabCorp. Order as MISC.
07/26/22: Effective 5/24/22: Per Mayo Clinic Laboratories, Due to capacity limitations, results for MCL test code CFPSO are currently delayed and report available times may exceed the published turnaround time of 6 to 7 days.
07/26/22: Effective 06/08/22: Due to supply issues, test Chromium Serum (Mayo code CRS, Marshfield code CHROSO) is currently non-orderable. Alternate test is 071522 for Chromium, Plasma to LabCorp. Order as MISC.
07/26/22: Effective 06/24/22: Per Mayo:  Due to methodology change in free testosterone, Mayo code TTFB Marshfield Labs code BIOTESO, will be delayed. Testing is still being performed; specimens may take longer to be resulted than the established TAT. 
Effective 8/10/22: BRBPSSO is currently unavailable due to reagent supply issues at Mayo Labs.  Recommended alternative: MISC: Bacteria ID by Sequence Analysis, BSEQID, to University of Washington.
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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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