GI Bleeding

David Green, MD, PhD

Northwestern University, Feinberg School of Medicine, Chicago, IL

This case was reviewed and updated in March 2010 by Dr. Alvin H. Schmaier and members of the Teaching Cases Subcommittee.

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

III. LABORATORY DATA

In addition to the CBC, which test(s) should be ordered for her preoperative evaluation? Select the test(s) that would be appropriate and sufficiently sensitive to recognize coagulopathy in this patient.

Activated partial thromboplastin time (aPTT)
Measurement of antithrombin III, protein C, and protein S
Platelet count
Platelet function
Prothrombin time

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