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Chemistry, Compliance & Safety, General Information

RESOLVED: Delay in TB Screen (QuantiFERON Gold) Results

As of 1/12/2018, the analyzer has been repaired and all specimens have been resulted.

The Dynex DS2 analyzer in the Chemistry department at Spectrum Health Regional Laboratory is currently down until Tuesday, January 2, 2018. Results for TB Screen (QuantiFERON Gold) on tests collected since December 21, 2017 will be delayed. Specimens are stable for 27 days, so the patient will not need to be recollected. We apologize for any inconvenience.

If you have further questions, please contact the Laboratory Call Center or use the “contact us” link above. This post will be updated when the analyzer is serviced.

Chemistry, Immunochemistry

Growth Hormone Update

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. Continue Reading


Important Cardiac Marker Notification – Spectrum Health Reed City Laboratory

Spectrum Health Reed City Laboratory will be switching instrument vendors, from Beckman Coulter to Roche, Tuesday November 29th, 2016. The change will be seamless for all tests except Troponin and B-type Natriuretic Peptide, as both of those tests are specific by vendor they will change to reflect those of the new vendor.

  • Troponin I will be switched to Troponin T.
  • BNP will be switched to NT-ProBNP.

New cardiac marker numerical results and reference ranges will not be interchangeable with the old.  The new markers are consistent with what is in place at Spectrum Health Grand Rapids, Gerber and Zeeland Hospital Laboratories. Spectrum Health Big Rapids, United and Kelsey Hospital Laboratories will be following suit over the next 12 months. Continue Reading

Chemistry, Microbiology, Test Utilization

Changes in Reflex Criteria for “Urinalysis, do Culture if Indicated” [Update]

On September 1, 2015, Spectrum Health Regional Laboratory, in conjunction with Infectious Disease, Infection Prevention and Pharmacy, adjusted reflex criteria for urine culture based on urinalysis finding (Urinalysis, Do Culture if IndicatedTest #115, Epic #LAB348, UA CX DO IF). The adjustment involved an increase in the number of WBCs per HPF considered positive (from ≥3 to ≥10). Continue Reading