General Information

Specimen Collection and Test Updates — December 2023

The following information was updated in the Lab Catalog.

Please note that our lab catalog URL has been updated to reflect our new name:

Test Updates
All changes are for Corewell Health West Laboratories.


  • Pyruvic Acid, Blood [LAB1231461]
  • Rheumatoid Factor LAB12310394]

Reference Rage Update:

  • Ethanol Level, Whole Blood [3264]
  • Methanol Level [823]
  • Ethylene Glycol [7140]
  • Isopropanol Level [806]
  • Blood Level [3225]
  • Cyclosporine Leve, Whole Blood [LAB552]
  • Sertraline Blood Level [856] 

Measurement units updated

  • CBC w/Differential [LAB293]
  • CBC w/o Differential [LAB294] 
  • Platelet count [LAB301] 
  • Platelet count (Citrate Tube) [LAB3332]
  • WBC count [LAB299]
  • WBC w/ANC, [LAB3316]
  • Immature Platelet Fraction (Lab orderable only) [LAB1230390]
  • Retic Count  [LAB3500]

Specimen Stability updated: 

  • Mycoplasma Antibody, IgM [LAB7990] 
  • Unfractionated heparin level [3389]
  • Low molecular weight heparin level [316]

Discontinued: These tests are no longer performed by Corewell Health Laboratories. If you require this testing, and there is not a replacement order, please order LAB848 Reference Miscellaneous Test and indicate test name in the order comment.

  • Pyruvic Acid [LAB7440]
  • Lactate/Pyruvate Ratio [LAB2111117]
  • Rheumatoid Factor, IgM, Quantitative [LAB206]

EMR/LIS Updates (eSHare or EHR Interface):

The following lab tests have updated information for interfaced clients (non-Corewell Health/Independent Outpatient offices or not on Corewell Health EPIC) with Corewell Health Laboratories. If you did not receive the file definition via email, please contact your vendor, the PRAS Team or use the Contact Us link above.

If you require a file definitely for your EMR please use the “Contact Us” link above.

FAQ for Orders and Results Interface

  • Discontinued:
    • Rheumatoid Factor IgM, Quantitative [10240] – replace with Rheumatoid Factor (RF) [12310394]
    • 14-3-3 ETA Protein, Serum [3486] – no replacement test
  • New tests:
    • Rheumatoid Factor (RF) [12310394] with result alias [123011103] Rheumatoid Factor
  • Info:
    • Result Changes: Enterovirus Cerebrospinal Fluid PCR [10764] new result alias: Enterovirus PCR [12310216], keep [22091] Enterovirus Interp, remove [22090] Enterovirus CSF
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