Effective February 7, 2024, at 7:30 AM, Corewell Health West Laboratories will go live with a new reference range for the calculated Anion Gap (AG). The AG reference range will be adjusted to align with recent reference range studies.
The following will be the new normal reference ranges for AG:
Anion Gap: 5 – 14 mmol/L
As of January 26, 2024, for the following tests, the testing platform has changed from EliA Fluorescence Enzyme Immunoassay (FEIA) from Thermofisher to Multiplex Flow Immunoassay from Biorad. Please review the lab catalog for any changes to collection information or reference ranges.
• Anti-dsDNA Antibody
• Cyclic Citrullinated Peptide (CCP) Antibody
• Celiac Antibody Cascade
• Tissue Transglutaminase Antibody
• Gliadin Antibodies
Effective January 17, 2024, UFH Anti-IIa testing will be performed at both Corewell Health Reference Laboratory West and Blodgett Immediate Response Laboratory in Grand Rapids.
The following information was updated in the Lab Catalog.
Effective December 20, 2023, Rheumatoid Factor, IgM, Quantitative will be replaced with Rheumatoid Factor.
Effective Wednesday, November 29, 2023, the in-house test, Pyruvic Acid, will be made inactive. Recommended alternative testing is Pyruvic Acid, Blood [LAB1231461] which is referred to Mayo Clinic Laboratories. Please review the lab catalog for information on new specimen requirements and updated reference range information. Due to the update in reference ranges, this may disrupt trending data.
The test Lactate/Pyruvate Ratio will also be inactivated with no alternative testing. If you require assistance with obtaining the ratio, please Contact Us.
On Monday, November 20, 2023, Corewell Health Laboratories West will adjust several hematology result components units of measure. The numerical results will be unchanged, the metric units will be adjusted to achieve standardization across the system and will align our labs with the International Society of Laboratory Hematology’s recommendations for standardization of hematology reporting units in blood counts.
The following parameter will be adjusted because of this change: