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Test Update

Chemistry

Anion Gap Reference Range Update

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

 

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Immunochemistry, Main lab

Update in Testing Platform – Immunochemistry

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 Continue Reading

Toxicology

Discontinuation Pyruvic Acid

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. Continue Reading

General Information, Hematology

CBC Unit Updates

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: Continue Reading