Browsing Tag

Pediatric Hematology

Chemistry, Referral/Sendouts

Hepatitis A IgG Antibody Discontinued

Effective Thursday, April 18, 2024, Corewell Health Laboratory will discontinue the send out test Hepatitis A IgG Antibody, Serum (Mayo Test ID: HAIGG). This test has been made obsolete by Mayo Clinic Laboratories. We recommend to our healthcare providers the following in-house testing:

1.Hepatitis A Total Antibody (LAB1230596): intended for the clinical laboratory diagnosis of acute or past hepatitis A virus infection in persons with signs or symptoms of hepatitis and in persons at increased risk for hepatitis A infection, to identify HAV susceptible individuals and to determine the presence of an antibody response to HAV in vaccine recipients.

2.Hepatitis A Antibody, IgM (LAB7980): intended for use as an aid in the laboratory diagnosis of an acute or recently acquired hepatitis A virus infection.

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April 1, 2024 by
Advanced Technology Laboratory, Cytogenetics

Discontinuation of Low-Volume and Individual Fluorescence in situ Hybridization (FISH) Probes

Effective immediately, due to low test utilization and the high cost of maintaining proficiency, the following FISH tests will no longer be offered:

• Prader-Willi/Angelman (15q11-q13) by FISH

Recommended test is Angelman/Prader-Willi mPCR

• Smith Magenis (17p11) by FISH

• Williams (7q11,23) by FISH

If need arises for this test, please place an order for a Send out Genetics Miscellaneous and enter requested test in the comments. The testing will be sent out through Spectrum Health.

Any questions about referral testing may be directed to the Referral Department. Any questions or concerns regarding these changes may be directed to Dr. Salah Ebrahim in the Cytogenetics Laboratory. Continue Reading

April 27, 2022 by
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

December 28, 2021 by
Hemostasis/Coagulation

New Test: Factor VIII Chromogenic Assay

Effective July 1, 2021, the Coagulation Department within the Spectrum Health Regional Laboratory will go live with an in-house, bovine based, Chromogenic Factor VIII assay.

This assay, a photometric determination of Factor VIII activity, is useful for monitoring coagulation factor replacement therapy of selected extended half-life coagulation factor replacements and Emicizumab therapy, a recombinant, monoclonal antibody that restores the function of the missing activated factor VIII by bridging FIXa and FX. The action of Emicizumab interferes with all APTT clot based and human chromogenic based assays, leading to an overestimation of Factor VIII activity.  As such, the bovine based Chromogenic Factor VIII assay is recommended.  The Chromogenic Factor VIII activity also assists in the diagnosis of hemophilia A using a 2-stage assay, particularly when the 1-stage clot based assay is normal.

For questions about this test, please refer to the laboratory catalog or use the Contact Us link above.

TEST INFORMATION

Chromogenic Factor VIII Activity – Epic Code: LAB1230831 | Interface Code: 1230831 | CPT: 85240

June 28, 2021 by
General Information, Hemostasis/Coagulation

Update: Platelet Aggregation Studies

The Spectrum Health Regional Laboratory Coagulation Department will be going live with the Helena AggRam analyzer on February 3, 2021.  This analyzer uses platelet rich plasma to analyze human platelet aggregation which is measured by absorbance.  The following aggregating agents are used in these studies: Arachidonic Acid, ADP, Collagen, Epinephrine, and Ristocetin.

Patients for platelet aggregation studies should be resting, fasting, and non-smoking. Patients should avoid taking any prescription or over the counter medications known to affect platelet function for ten (10) days to two (2) weeks prior to the studies. For a list of medications known to have anti-platelet effects, click here. Continue Reading

January 27, 2021 by