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Human Reference Manual

05/03/22:  Effective 5/5/21:  Due to a supply backorder, test PCAG (PCAGSO) Protein C Antigen Plasma, is currently non-orderable at Mayo Labs.  The alternate test is FPCTA, Protein C Total Antigen, which should be ordered as FPCTASO.
05/03/22:  Effective 5/10/21: PAI1SO is non-orderable immediately per Mayo due to a manufacturer supply backorder. Alternative test: MISC: FPAI1
05/03/22: Effective 6/25/21 Mayo made the following test codes non-orderable:  CLLDF (CLLFSO) (recommended alternative FBCEL) and MDSF (FMDSSO) (recommended alternative FFMDS).  Recommended alternative tests to be orded as MISC.  
05/03/22: 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.   
05/03/22: Effective 8/3/21 per Mayo Labs, ZPPSO (NEZPP) is non-orderable (reagent issues). Alternative test option: Test Code:  0020605 Zinc Protoporphyrin, Blood to ARUP - order as MISC. 
05/03/22: 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.
05/03/22: Effective 12/6/21: IGDSO: Immunoglobulin D, Serum to Mayo is nonorderable due to a reagent shortage. Recommended alternative test: Immunoglobulin D, Serum: Test ID: FIMMD to Mayo. A notification will be send when testing resumes.
05/03/22:  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.
5/03/22:  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.
05/03/22:  Effective 01/11/2022: Due to reagent issues, Aldolase (ALDO) testing will be sent to Mayo Clinic Laboratories.
05/03/2022:  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. 
05/03/22: Effective 4/13/22 Per Mayo, due to a nationwide reagent shortage A1APPSO (A1APP) is non-orderable. There are currently no referral options available through Mayo Clinic Laboratories. An update will be provided when testing resumes.
05/03/22:  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.
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.
5/11/22: EVPCR will be delayed due to reagent shortage; and send out testing to Mayo Laboratories during the reagent shortage.
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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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