Terry Gernsheimer, MD, and Michele B. Frank, MD

Dr. Gernsheimer: Puget Sound Blood Center and University of Washington School of Medicine, Seattle, WA
Dr. Frank: Cascade Cancer Center, Kirkland, WA

Copyright of the American Society of Hematology, 2006. ISSN: 1931-6860.

This case was reviewed and updated in January 2011 by Dr. Alvin H. Schmaier and members of the Teaching Cases Subcommittee.


What laboratory tests would you order? Select all that would be indicated.

Complete Blood Count
Peripheral smear
Reticulocyte count
Prothrombin time (PT) and activated partial thromboplastin time (APTT)
Platelet Function Analyzer (or PFA-100 or Platelet Function Screen)
Bleeding time
Lactic dehydrogenase
Viral titers for a chronic infection with HIV and Hepatitis C
Viral titers for an acute infection
Thrombopoietin (TPO) levels
Glucose level
Chest X-ray
Direct Antiglobulin Test
Quantitative Immunoglobulins
Helicobacter pylori antigen assay

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