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Orthopaedic

General Information, Hematology

Test Update: Cell Count with Differential, Body Fluid

Beginning Tuesday, January 4, 2022, Spectrum Health Laboratories will include an automated neutrophil (PMN) count on Cell Count with Differential, Body Fluid (LAB210) orders for peritoneal body fluids.   This component will be displayed in Epic as an absolute PMN count, body fluid.

• The absolute PMN count in the peritoneal fluid is calculated by multiplying the total nucleated cell count by the percentage of PMNs in the differential.

• This calculation aids in the diagnosis of spontaneous bacterial peritonitis (SBP).

• The diagnosis of bacterial peritonitis is established by a positive peritoneal fluid bacterial culture and an elevated peritoneal fluid absolute PMN count (≥250 cells/uL).

• Epic will automatically calculate the absolute PMN count in peritoneal body fluids based on the manual differential data.

• This component ONLY calculates for Cell Count with Differentials (LAB210) on PERITONEAL BODY FLUIDS Continue Reading

General Information, Immunochemistry, Main lab, Referral/Sendouts

Resolved: Change in testing for Lyme Total Antibody

As of February 11, 2021, this has been resolved. Testing has resumed at Spectrum Health Regional Laboratory Immunochemistry Department.

Starting November 1, 2020, the Lyme Total Antibody test will temporarily not be performed in-house and will be sent out to the Mayo Clinic Laboratories using the Lyme Disease Serology, Serum.  This is due to the backorder of reagents from the vendor until approximately January 2021.

Lyme Disease Serology, Serum is available to order in Epic. Lyme Total Antibody will still be available to order, however, when the specimen arrives to the laboratory the order will be switched to the Lyme Disease Serology, Serum.

Similarly, to the current in-house test, the Mayo assay is also a Lyme total antibody assay, detecting both IgG and IgM antibodies, with the same specimen type as the in-house test.  However, test turn-around-times may be increased.

Lastly, this change will have no effect on the reflexing of positive samples to the confirmatory Lyme Disease Antibody, Immunoblot, Serum. Continue Reading