Browsing Tag

pediatric nephrology

Immunochemistry

Aldosterone Testing Cancellations and Delays

Update 4/11/2024: The supplier shortage is ongoing. For patient health, we will now be sending these specimens to Mayo Clinic Laboratories, please note that this will impact trending charts in Corewell Health Epic. Please continue to order Aldosterone LAB1230656 and Direct Renin LAB1230657 separately.

Original Post: Due to a supplier shortage of Aldosterone reagent, Aldosterone (LAB 1230656 and LAB1230661) testing will be temporarily unavailable at Corewell Health Laboratories West. Continue Reading

Toxicology

Update to Vitamin D Testing

Effective February 28th, 2023, Vitamin D 25-Hydroxy Level (25-OH Vitamin D) [LAB535] will be replaced by 25-Hydroxyvitamin Level D2 and D3 [LAB1230925]. Send out testing for 25-Hydroxyvitamin D2 and D3, Serum [LAB1230428] to Mayo will be discontinued. The testing methodology will change from an immunoassay to liquid chromatography-mass spectrometry.

The new test will include concentrations for

  • 25-hydroxyvitamin D2
  • 25-hydroxyvitamin D3
  • 25-hydroxyvitamin D Total

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General Information

Albumin Testing Update

Albumin Reagent Conversion

Corewell Health Laboratories (formerly Spectrum Health) has utilized the Bromcresol Purple (BCP) method for the measurement of albumin concentration in serum, plasma, and serous body fluids for well over 20 years. The test principle consists of a reaction where the BCP binds selectively with albumin, causing a color change that is measured photometrically. A vast majority of labs across the country, including reference labs such as Mayo Medical Laboratories, utilize an alternative method for albumin measurement that consists of Bromcresol Green (BCG) instead of BCP. To align with the majority of institutions this size, and to be included in a larger peer group for proficiency testing purposes, Corewell Health Laboratories – West, has been transitioning to BCG for the measurement of albumin over the last few weeks. Continue Reading

General Information, Toxicology

Test Update: Cystatin C

Effective Wednesday, December 18, 2019, Cystatin C will change from a sendout reference test performed by Mayo Clinic Laboratories to an in-house test performed by Spectrum Health Regional Laboratory. This test will be performed in the Toxicology Laboratory and will include a new reference range (please see link in Test Information below).

Questions may be directed to Toxicology via the “contact us” link above.

TEST INFORMATION

Cystatin C – Epic Code #LAB3226, Interface #11631, CPT #82610

General Information, Immunochemistry

Immunochemistry Methodology Update

Effective December 11th, 2019, Spectrum Health Regional Laboratory’s Immunochemistry laboratory will be upgrading the following tests from the Immunoassay Vidas platform to the Multiplex flow immunoassay Bioplex 2200 platform.

Cytomegalovirus IgG Antibody

Cytomegalovirus IgM Antibody

Toxoplasma IgG Antibody

Toxoplasma IgM Antibody

Lyme Total Antibody

All tests will continue to have the same collection instructions, processing instructions, rejection criteria, specimen stability, turn-around-time, and qualitative reference ranges of negative. Continue Reading