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Human Reference Manual

03/03/2020:  Effective immediately Mayo Labs will no longer be accepting samples for the RESPVSO test (Viral Culture, Respiratory, VRESP).  This is to prevent inadvertent culture of SARS-CoV-2, the cause of COVID-19.  
(VRESP continued) Mayo Labs recommends the following alternate testing:  For nasopharyngeal swabs order RESPM, Respiratory Pathogen Panel, PCR Nasopharyngeal.  For bronchoalveolar lavage or bronchial washings, order RESLR, Respiratory Pathogen Panel, PCR.
03/20/2020:  Per Mayo Labs:  Effective immediately test HIVPR (HIVPRSO-HIV-1 Genotype Drug Resistance to Protease and Reverse Transcriptase Inhibitors, Plasma) is non-orderable. 
03/23/2020:  At Marshfield Labs site, test code GH (Hemoglobin A1C) may have a slower TAT due to batching of samples.  Samples that arrive in appropriate lab dept. before 3:30 pm M-F, will be run the same day as receipt, but may not be run w/in 2 hrs.
04/21/2020:  The following tests may be delayed due to testing schedule changes:  CH-NAM, GC-NAM, TRICNAM, HPVNAM, TICKP, ANENAT, BABNAT, VAGNAT, SSCSNAT, HS12PCR and VZVPCR (lesion sources only). 
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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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