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Human Reference Manual

10/19/21:  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 MISC.
10/19/21:  Effective 5/10/21: PAI1SO is non-orderable immediately per Mayo due to a manufacturer supply backorder. Alternative test: MISC: FPAI1
10/19/21: 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.  
10/19/21: 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.   
10/19/21: Effective 8/3/21 per Mayo Labs, ZPPSO (NEZPP) is non-orderable (reagent issues). Alternative test options: ZW86 (Light Sensitve), Referral Lab Code: 4885B to Mayo; or ZW242, Referral Lab Code: 0020605 to Mayo; order as a MISC.
10/05/21: 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.
10/19/21: Effective immediately test code LHSVBSO (HSV 1 & 2, Qualitative PCR, Blood) is non-orderable due to reagent issues. Recommended Alternative Test: MISC: Test ID: FHS12, HSV, Type 1 & 2 DNA, Qualitative, Real-Time PCR to Quest.
10/11/21: Effective 10/11/21: INFXRSO is delayed at Mayo pending reagent availability. Mayo Test ID: INFXR
10/15/21: 10/15/21: Effective immediately, HPVHRSO is unavailable due to reagent distruption. Recommended alternative test is Test Code: HPVE6SO to Mayo Labs
10/21/2021:  Per Mayo Labs:  Due to assay performance issues, their test (TTFB) Testosterone, Total, Bioavailable and Free (BIOTESO) will be test down immediately.  Mayo recommends alternate test FFTST.
10/25/21: Effective 10/25/21 ALDSSO testing will be delayed at Mayo due to reagen availability. The test will remain orderable and specimens will be stabilized until reagent becomes available.
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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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