Effective September 28th, 2020, a new generation of the serum kappa/lambda free light chain assay has been implemented.
With the implementation of the new generation of the assay there is an approximately 20% negative bias for kappa free light chains in serum containing >20 mg/dL kappa free light chain. This may affect the trending for patient who are serially monitored by this assay.
As of August 26, 2020, the following tests will be obsoleted or made as lab orderables only. This was implemented to streamline protein electrophoresis orders and ensure that patients receive the recommended testing for the assessment of plasma cell proliferative diseases.
In addition to streamlining protein electrophoresis orders, order questions have been implemented to the available tests to access the reason for ordering to ensure that the proper reflex testing is applied.
For more information, see the lab test directory under the available tests for a protein electrophoresis orders tip sheet entitled “Orders- Protein Orderable Changes”
There is currently a national shortage of STI collection kits for APTIMA testing. This shortage will affect APTIMA testing for Chlamydia, Gonococcus, Trichomonas and Mycoplasma Genitalium (MGen). Spectrum Health Laboratories does offer alternative collection devices and testing for Chlamydia, Gonococcus and Trichomonas.
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.
As of November 25th 2019 the following tests for Herpes Simplex Virus (HSV) IgM antibody testing will be obsoleted.
Herpes IgM Antibody Screen – LAB3576
Herpes Simplex Virus (HSV) Antibody Screen, IgM, by EIA, Serum – LAB3578
Herpes Simplex Panel – LAB1230539
Effective Wednesday, November 13, 2019, the new Mycoplasma genitalium (mgen) assay is now available using the Aptima target nucleic acid amplification test (NAAT) for the qualitative detection of ribosomal RNA (rRNA) from Mycoplasma genitalium to aid in the diagnosis of M. genitalium urogenital infections in male and female patients.
Effective immediately, Carboxyhemoglobin testing is now limited to hospital sites only. Due to a recall on the BD tubes, this test must now be drawn in a pre-heparinized blood gas syringe or pre-heparinized capillary tube. Please refer to the lab catalog for collection information.
Effective September 1, 2019, the test Drug of Abuse Screen, Pain Clinic, Urine will be discontinued.
Earlier this year, Spectrum Health Regional Laboratory – Toxicology announced two new drug screen panels, Urine Drug Screen with Confirmation (23 Targets) and Urine Drug Screen with Confirmation (32 Targets) as replacement tests. For more information regarding these new tests please reference this post.