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.
New: Pyruvic Acid, Blood – Epic code [LAB1231461], Interface code , CPT 
Discontinued: Pyruvic Acid – Epic code [LAB7440], Interface code , CPT 
Discontinued: Lactate/Pyruvate Ratio – Epic code [LAB2111117], Interface code , CPT [84210,83605]
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:
White Blood Cell (WBC) currently x10^3/uL will update to x10^9/L
Red Blood Cell (RBC) currently x10^6/uL will update to x10^12/L
Platelets currently x10^3/uL will update to x10^9/L
White Blood Cell (WBC) Automated and Manual Differential Absolute Counts (example: Neutrophil Absolute Count): currently x10^3/uL will update to x10^9/L
Nucleated Red Blood Cell (NRBC) Absolute Count currently x10^3/uL will update to x10^9/L
Immature Platelet Fraction (IPF) Absolute Count currently x10^3/uL will update to x10^9/L
Absolute Reticulocyte Count currently x10^3/uL will update to x10^9/L
Effective October 3, 2023, the following changes to CBC and Blood Smear testing will be made at Corewell Health Reference Lab – West:
Effective September 26, 2023, at 9:00 AM, Corewell Health West Laboratories will go live with a new lot of aPTT reagents. The aPTT reference ranges will be adjusted to reflect this reagent lot change. The following will be the new normal reference ranges for aPTT testing:
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.
• 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
• Influenza (Flu) A/B PCR – Epic Code: LAB3255
• COVID-19, Influenza A/B, RSV PCR – Epic Code: LAB1230746
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.
Why the change?
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.
Corewell Health Laboratories no longer offers Covid collection observations or collections at any of our draw sites/laboratories.
If your patient is experiencing symptoms and requires a Covid test, please choose one of the options below:
The management of sinusitis is often aided by bacterial and fungal cultures from which Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis, Staphylococcus aureus, and occasionally aerobic Gram-negative bacilli are the most commonly recovered pathogenic organisms. The Corewell Health West Microbiology Lab has several orders available for culturing sinus specimens collected as fluid aspirates, tissue, or swabs. Though more challenging to collect, aspirates are preferred over swab cultures that often grow mixed normal upper respiratory flora for which it is difficult to interpret the clinical significance.
It’s the season of sunshine and blooms which also means it can be a season of sneezing, itching, and a lot of trouble getting a good breath in for some.
⇒Are you prepared to meet the needs of your patients that may be suffering from some of these symptoms?
⇒Are you well versed in the difference between a sensitivity and a clinical allergy and how you can differentiate between the two?
⇒Do you know the resources we have at Corewell Health to assist in these determinations?