New, updated or discontinued testing requirements, methodologies, etc.

Effective Jan 12, 2026, WDL will convert to ESwabs from the blue and/or red top culture swabs. 

Effective December 10, 2025, Urine Microalbumin Test Name Changes
 

Effective October 23, 2025, Test Method Change for Serum and Urine Protein Electrophoresis

Effective October 22, 2025, Test Method Change for Hemoglobin Electrophoresis

Effective October 1, 2025, Implementation of INR Reference Range & Discontinuation of PT Mixing Studies

Effective September 17th, 2025, Aldosterone and Renin Measurement Change
 

Effective July 16, 2025, Lyme antibody test algorithm will change to the Modified Two-Tiered Testing (MTTT) algorithm.

Effective June 25, 2025, WDL will offer the congenital CMV NAAT (LAB6202).

Effective June 25, 2025, Discontinuation of the Soluble Transferrin Receptor Test

Effective Apr. 16, 2025, WDL will transition Special Coagulation testing to new instrumentation...

Effective Mar. 4, 2025, Due to supply constraints the Copan UTM Dual Swab Collection Kit (3C061N - Infor 110097) is in limited supply
 

Effective Oct. 23, 2024, WDL will be discontinue the stand-alone tests for Valproic Acid and Phenytoin.
 

Effective Oct. 16, 2024, WDL will switch syphilis screening from the traditional to the reverse algorithm.

Effective Aug. 19, 2024, Wisconsin Diagnostic Laboratories (WDL) will discontinue offering Herpes Simplex Virus Antibody IgM (HSV IgM).

Effective May 15, 2024, Wisconsin Diagnostic Laboratories (WDL) will offer Bacterial Vaginitis, Candida Vaginosis, and Trichomonas Nucleic Acid Amplified Test (MVP NAAT; LAB6189).

Effective Mar. 26, 2024, Transition of Thyroglobulin and Anti-Thyroglobulin Antibody Measurement Assays.

Effective Jan. 9, 2024, Peripheral Blood Flow cytometry will now be a part of an order set known as “Hematopathology Evaluation”.

Effective Jan. 3, 2024, Wisconsin Diagnostic Laboratories will be implementing a new method, rapid immunoassay, for the detection of Cryptosporidium and Giardia antigens from stool specimens.   

Effective Oct. 1, 2023, Wisconsin Diagnostic Laboratories is implementing the discontinuation of Helicobacter pylori (H. pylori) Serology Testing.

Effective Sept. 7, 2023, Wisconsin Diagnostic Laboratories is implementing ALT and AST assays that include pyridoxal-5-phosphate (P5P, vitamin B6) in the formulation.

Effective July 18, 2023, Wisconsin Diagnostic Laboratories (WDL) is requesting that all clients sending tests containing potassium (K) orders be drawn in a serum separator tube (SST).

Effective June 6, 2023, Wisconsin Diagnostic Laboratories (WDL) will be making a change in LDL Calculation Equation.

Effective February 21, 2023, Provider Performed Microscopy requests for a peripheral blood smear will have a name change.

Effective January 3, 2023, Wisconsin Diagnostic Laboratories (WDL) will no longer be performing PF4 IgG for heparin antibodies in-house.

Effective Dec. 6, 2022, Wisconsin Diagnostic Laboratories (WDL) and the Froedtert Health Laboratory Enterprise will be adding an enhancement to flag all results above the clinical cut-off for DVT and PE established by individual assay vendors.

Effective Oct 17, 2022, Wisconsin Diagnostic Laboratories (WDL) and Froedtert Health Laboratories will transition to reporting Total Nucleated Cell Count (TNC) instead of White Blood Cell Count (WBC) in body fluid and CSF cell count analysis.

Effective Sept. 14, 2022, Wisconsin Diagnostic Laboratories (WDL) will offer fasting versions of the Basic Chemistry Panel, Comprehensive Metabolic Panel, and Lipid Panel.

Effective July 29, 2022, WDL will no longer be reporting a critical value of >15% reticulocytes in infants 0-29 days old.

Effective June 14, 2022, The Froedtert & the Medical College of Wisconsin health network is changing the calculation of estimated glomerular filtration rate (eGFR). 
 

Effective May 2, 2022, Wisconsin Diagnostic Laboratories (WDL) will bring testing in-house for Platelet Factor 4 for Heparin Antibodies.

Effective Mar. 22, 2022, for all von Willebrand testing performed at WDL and outside reference laboratories, please utilize the Order Mnemonic when ordering testing.

Effective Feb. 8, 2022, WDL will convert to the Roche total antibody tests for SARS-CoV-2 nucleocapsid and spike antibodies.

Effective Jan. 24, 2022, Froedtert & the Medical College of Wisconsin providers can utilize the CD3 and CD33 Enrichment test in Epic to request Chimerism Testing.