Browsing Tag

Emergency Medicine

General Information, Main lab

Hepatitis Results Component Update

Effective September 21, 2022, the resulting options for the following Hepatitis lab result components will be updated from “Positive”/”Negative” to “Reactive”/”Nonreactive”. Any additional current resulting options, such as “Equivocal” or “See Comment”, will remain available. This will only affect applicable tests that have not yet been resulted.

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General Information

Positive COVID-19 PCR Communications

At the beginning of the COVID-19 pandemic Spectrum Health Laboratory implemented a protocol to call providers and patients to notify of positive COVID-19 PCR testing.  The pandemic has shifted to an endemic phase and a positive COVID-19 test is no longer considered a critical value. Effective Friday, August 26, 2022, Spectrum Health Laboratory will no longer call positive COVID-19 PCR testing, for inpatient or outpatient specimens.

Results for COVID-19 PCR will still file to the patient’s chart in Epic and reported to the ordering provider through usual means of receiving results (fax or electronic) and to the Michigan Department of Health and Human Services (MDHHS). Patient’s will still be notified via their MyChart as well.

If you have any questions or concerns, please use the “contact us” link above.

Hematology

Result Reporting Change of Nucleated Cells in Cerebrospinal Fluid (CSF) Counts

Cell Count w/ Differential if indicated, Cerebrospinal Fluid [LAB2111025] and Cell Count with Differential, Cerebrospinal Fluid (Pediatric Oncology) [LAB212] currently result nucleated cell counts as a White Blood Cell (WBC) count.

Effective Tuesday, August 16, 2022, the WBC component will be removed and instead reported as a Total Nucleated Cell (TNC) Count for CSF.

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Chemistry

Updates: Chemistry Reference Ranges

Effective August 2, 2022, reference ranges for the below tests will be updated to better align with the vendor’s recommendation and with Spectrum Health Lakeland Laboratory. Please click on the links below and scroll to the Reference Range field to see the updated ranges.

Lithium Level [LAB29]

PTH Intact [LAB108]

IgM Level [LAB72]

IgA Level [LAB73]

CA 125 Level [LAB155]

C4 Complement Level [LAB151]

C3 Complement Level [LAB152]

Albumin Level [LAB45]

Transferrin Level [LAB133]

Questions or inquiries may be directed to the “Contact Us” link above.

Microbiology, Test Utilization

Enteric Pathogens PCR Panel: New Order Criteria

The Enteric Pathogens PCR test performed by Spectrum Health Laboratory may be used to detect common pathogenic bacteria and viruses in stool collected from individuals with symptoms of gastrointestinal infection. Specifically, this test detects Campylobacter, Salmonella, Shigella, Vibrio, Yersinia enterocolitica, Norovirus, Rotavirus, and the Shiga toxin virulence factor. Effective August 17, 2022, Spectrum Health’s Epic EMR will contain new ask-at-order questions to help improve the clinical decision support and appropriate utilization of this testing. Continue Reading

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
General Information, Microbiology, Test Utilization

Discontinuation of Placenta Microbiology Cultures

As of April 12, 2022, Spectrum Health Laboratory will no longer add microbiology cultures to placental tissues received based on paper requisition forms.

Viral and bacterial cultures from placental tissue are rarely clinically beneficial and are no longer the gold standard diagnostic approach due to the relative insensitivity of culture methods.

If viral studies are desired (possible indications could include known CMV exposure with positive IgM or intrauterine fetal demise at < 28 weeks), then molecular testing is the recommended diagnostic approach. HSV and CMV PCR tests may be ordered in Epic.

Herpes Simplex 1/2 Qualitative PCR, Tissue (LAB1230413)

Cytomegalovirus (CMV) Qualitative PCR, Tissue (LAB1230291)

Bacterial cultures are challenging to interpret since they typically grow normal genital flora and histopathological analysis used to diagnose acute chorioamnionitis correlates poorly with growth from bacterial placenta cultures. If indicated, culture and PCR tests may be ordered in Epic.

Tissue Culture (LAB2111173)

Metamycoplasma hominis, Molecular Detection, PCR, Varies (LAB848)

Ureaplasma species, Molecular Detection, PCR, Varies (LAB848)

Placenta tissues sent to the lab in formalin are not acceptable for PCR or culture orders.