The Hematology Department performs a variety of tests on blood, urine, bone marrow, and sterile body fluids that allow physicians to diagnose and monitor anemia, leukemia, lymphoma, malignancy, infection and many other abnormalities and diseases.

Testing is performed by ASCP certified medical technologists and technicians with many years of experience in high complexity testing under the direction of hematopathologist, Alexandra Harrington, MD, MT(ASCP).


We are a full service, high volume laboratory testing over 400,000 blood samples per year for complete blood counts alone. Our laboratory utilizes state-of-the-art instrumentation using the gold standard Fluorescence Flow Cytometry technology. This technology assists laboratory personnel in efficient and highly accurate analysis of patient samples.  High quality results are reported timely, giving providers the tools needed to manage their patients.

Our laboratory also assists in performing over 1,500 bone marrow biopsies each year, a number that is steadily increasing. This service is essential for diagnosing, staging, and monitoring hematological disorders and malignant processes. Slides are prepared at the patient’s bedside, stained in the laboratory, reviewed by medical technologists and submitted to pathology for interpretation.


High quality laboratory data is critical in helping physicians make accurate clinical judgments. Our laboratory specialists pride themselves in providing the highest quality results in an expedient manner.


Our clinical laboratory services include:


General Hematology

  • Complete Blood Count
  • Reticulocyte Count
  • Leukocyte Infusion Testing
  • Stem Cell Concentrate Testing
  • Glycohemoglobin A1C
  • Erythrocyte Sedimentation Rate
  • Sickle Cell Screening
  • Malaria and smear review for blood parasites
  • Kleihauer Betke



  • Microscopic and Macroscopic Urinalysis
  • Qualitative Serum and Urine HCG
  • Myoglobin



  • Routine coagulation assays
  • Specialty coagulation assays
  • Heparin therapy monitoring
  • Dabigatran and Argatroban therapy monitoring
  • Hemophilia testing
  • DIC panel
  • Platelet function testing
  • Whole blood coagulation testing by TEG


Bone Marrow

  • Bone marrow collection assistance (includes quality assessment of samples and slides)
  • Bone marrow differentials
  • Myeloperoxidase Cytochemical Staining
  • Alpha-Naphthyl Butyrate Esterase Staining
  • Iron Staining
  • Bone Marrow imprint and aspirate staining
  • Glucose-6-Phosphate Dehydrogenase Screening


Body Fluids

  • Body Fluid Cell Count with Differential
  • Semen Analysis
  • Synovial Crystal Analysis
  • Diagnostic Peritoneal Lavage Analysis
  • Smear for Eosinophils


For additional information on hematology, please contact:


Alexandra Harrington, MD, MLS(ASCP)CM

Professor of Pathology
Director of Hematopathology
MCWfusion Director
Medical College of Wisconsin

Medical Director of Hematology, Coagulation and Urinalysis
9200 W. Wisconsin Avenue
Milwaukee, WI 53226

aharring@mcw.edu |Pathology Office: 414.805.6703



Maria E. Hintzke, MD
Assistant Professor of Pathology
Department of Pathology and Laboratory Medicine
Medical College of Wisconsin
Associate Director of Hematology
Wisconsin Diagnostic Laboratories
9200 W. Wisconsin Avenue
Milwaukee, WI 53226

mhintzke@mcw.edu | Office: 414.805.4562