Browsing Tag

Test Discontinuation

General Information

Test Update: Drug Screening Updates

Effective September 3, 2025, Drug Screen with Alcohol and Drug Screen without Alcohol will be discontinued for inpatient testing. The replacement test would be Drug Screen, Immunoassay, Urine [LAB677] for ED and inpatient.
Drug Screen Toxicology, Immunoassay, Urine [LAB3227] is available for outpatient testing.
For any questions or concerns, please contact your account manager or use the contact us link above.

Test Information

Discontinued Tests:
  • Drug Screen with Alcohol, Immunoassay, Urine [LAB2111694]
  • Drug Screen without Alcohol, Immunoassay, Urine [LAB2111041]
August 28, 2025 by
General Information

Test Update: Vitamin D Testing Via Tandem Mass Spectrometry (LAB1230925)

Corewell Health Laboratories has discontinued routine Vitamin D testing via Tandem Mass Spectrometry (LAB1230925). The new test for diagnosing Vitamin D insufficiency and monitoring therapy is Vitamin D, 25-Hydroxy (LAB1231583), performed daily using an in-house immunoassay method.

Vitamin D screening for deficiency/insufficiency will now be conducted via immunoassay. Current requests for Vitamin D2/D3 by Mass Spectrometry will be sent out.

For any questions or concerns, please contact the Corewell Health West Laboratory.

 

TEST INFORMATION

Discontinue: LAB1230925 25-Hydroxyvitamin D2 and D3, Serum

Replacement: LAB1231583 Vitamin D 25 Hydroxy

June 27, 2025 by
Chemistry, General Information

Discontinuation of CKMB

Effective Wednesday, January 1, 2025, the in-house test, Research Creatine Kinase MB Fraction (CK-MB) (LAB2111534) will be made inactive. Recommended alternative testing is CK-MB (CK-2) (TC:17581) which is referred to Quest Diagnostics.

For questions or additional information, please use the Contact Us link above.

January 13, 2025 by