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Occupational Medicine

General Information, Test Spotlight

Influenza Testing Update: April 2022

West Michigan influenza infections peaked mid-March 2022 and have been declining in the weeks that followed. Now with a low prevalence of circulating influenza, using the most sensitive diagnostic test is recommended in order to obtain accurate and actionable results. Influenza antigen testing (e.g. Sofia instrument) is no longer appropriate at this time and Influenza PCR testing should be ordered when clinically indicated.

Low Influenza
Prevalence
High Influenza
Prevalence
Recommended Order Influenza PCR (LAB3255) Influenza Rapid Antigen (LAB2111530)
or
Influenza PCR (LAB3255)

 

More detailed information can be found as published by the CDC:

Algorithm to assist in the interpretation of influenza testing results and clinical decision-making during periods when influenza viruses are NOT circulating in the community, and in previous lab newsletters: Influenza Diagnosis and Test Utilization

 

TEST INFORMATION

Test name Epic code Interface EMR Code CPT Code
 Influenza PCR  LAB3255 11594 87502
 Influenza Rapid Antigen  LAB2111530 11208 87804 x4
Chemistry, General Information, Immunochemistry

Test Update: Rubella IgG Antibody Testing

On January 24th, 2022 Rubella Antibody, IgG, Serum (LAB496) and Rubella IgG Antibody Quantitative (LAB3544) will be combined as LAB496 and moved to the Immunochemistry laboratory due to reagent constrains with the current vendor.

Testing will be available Monday-Friday with a turn-around-time of 1-3 days. Results will be reported qualitatively as Immune or Not Immune.  If quantitative results are needed, please fax Immunochemistry at 616-267-2771 or call 616-267-2770. Continue Reading

Microbiology, Test Spotlight

Influenza Testing Recommendation Update (December 2021)

The mitigation strategies enacted during the COVID-19 pandemic to reduce the spread of this virus led to essentially non-existent influenza prevalence during the 2020-2021 winter season. However, influenza has now returned and case numbers are increasing throughout West Michigan.

Influenza prevalence guides the most appropriate testing approach and sufficient prevalence has now been reached for influenza rapid antigen testing (e.g. Sofia instrument) to have improved performance. The use of rapid antigen testing as a screening method during high prevalence reduces both the cost to the patient and turn-around-time as compared to lab-based molecular methods. Rapid antigen tests generally have high analytical specificity, but lack the sensitivity of nucleic acid amplification methods (e.g. PCR). For this reason, PCR testing is still recommended for hospitalized patients and for outpatients with a negative antigen result if influenza is still suspected and if the result will impact clinical decision making. Continue Reading

General Information, Toxicology

Test Discontinuation: Drug of Abuse Screen, Pain Clinic, Urine

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. Continue Reading