As of January 10th, 2024, the vitamin B1 (thiamine) assay has been updated to align with laboratory best practices. Patients being monitored may have higher vitamin B1 levels as compared to samples tested on the previous assay.
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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:
Effective October 3, 2023, Corewell Health Laboratories will discontinue the Influenza Rapid and Respiratory Syncytial Virus (RSV) Rapid tests. These antigen tests are less sensitive than the nucleic acid amplification tests (NAAT; such as PCR) that are now the standard of care for diagnosing these respiratory viruses. Specimen collection remains unchanged with PCR testing available for nasopharyngeal and nasal swabs collected in a universal transport media (UTM) tube.
Discontinued:
• Influenza (Flu) A/B Rapid – Epic Code: LAB9240
• Influenza (Flu) A/B Rapid, Influenza A/B PCR if Negative – Epic Code: LAB2111530
• Respiratory Syncytial Virus (RSV) Rapid – Epic Code: LAB495
Replace with:
• Influenza (Flu) A/B PCR – Epic Code: LAB3255
• COVID-19, Influenza A/B, RSV PCR – Epic Code: LAB1230746
General Information, Main lab, Test Utilization
Complete Blood Count (CBC) with Manual Differential Order Discontinuation
Effective October 3, 2023, the orderable Complete Blood Count (CBC) with Manual Differential [LAB2111032] will be discontinued and Manual Differential, Blood [LAB815] will be made a Lab Only Orderable.
Effective August 23, 2023, Corewell Health Coagulation Laboratory will go live with UFH Anti-IIa testing.
The Anti-IIa 2 stage heparin assay is a chromogenic assay for measuring the activity of unfractionated heparin. This method only tests unfractionated heparin.
This heparin assay is a two stage Anti IIa ( 2 Stages Heparin Assay) based on the inhibition of a constant amount of Thrombin (IIa) by the tested heparin in the presence of exogenous antithrombin.