Spectrum Health Regional Laboratory is adjusting the Microalbumin Analytic Measurement Range (AMR) in order to standardize within the Spectrum Health Hospital System and to align with our vendor’s (Roche Diagnostics) recommendations. The lower limit of the Microalbumin AMR will be changed from 0.50 to 1.20 mg/dL. Results below the AMR will now be reported as < 1.20 mg/dL. The upper limit will remain the same at 444.00 mg/dL.
new reference range
As of October 1, 2018, the reference interval for Anti-Thyroid Peroxidase Antibody levels has been updated to 0.0 to 34.9 IU/mL from 0.0 to 8.9 IU/mL. This change is due in part to client feedback resulting in an audit of the existing range and leading to discovery that it had not been updated when the instrument had been changed.
We appreciate and welcome any and all client feedback; if you identify what may appear to be an incorrect reference interval, please notify us immediately using the “Contact Us” link above.
Effective immediately, the anion gap reference interval will be changed from 4-15 mmol/L to 9-18 mmol/L to reflect the system-wide standardization of electrolyte testing.
On May 1, 2017, Spectrum Health Regional Laboratory adjusted the reference range for C-Reactive Protein (CRP) from ≤10 mg/L to ≤5.0 mg/L.
Effective March 20, 2017, Spectrum Health Regional Laboratory’s Immunology department will be switching dsDNA vendors from Varelisa ™ to ThermoFisher/Phadia ™.
Both manufacturers (mfr) have similar methods but different reference criteria presumably due to manufacturer specific dsDNA epitopes identified.
As of February 7, 2017 the method/instrument used for the Growth Hormone assay performed at the Spectrum Health Regional Laboratory will be switched from ROCHE COBAS to the IDS- iSYS. A method comparison between the two methods showed excellent clinical and numerical comparability. The assay also performed excellently in terms of precision and linearity.
Effective September 12, 2016, Spectrum Health Regional Laboratory (SHRL) will update the methodology for Vitamin D 25 Hydroxy Level (25-OH Vitamin D) from LCMS (Liquid Chromatography-Mass Spectrometry) to automated immunoassay.