GI Bleeding

David Green, MD, PhD

Northwestern University, Feinberg School of Medicine, Chicago, ILA

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

III. LABORATORY DATA

Laboratory evaluation reveals a hemoglobin of 7.6 g/dL (normal values for women range from 11.5 to 14 g/dL). The physician diagnoses inflammatory bowel disease and refers her to a surgeon for a bowel resection. Based on this information, the surgeon decided to order additional pre-operative coagulation tests.

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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