Bleeding History in a Child Undergoing Surgery

Spero R. Cataland, MD, and Eric H. Kraut, MD

Ohio State University


III. LABORATORY DATA

Which of the following tests should be ordered to help in the initial evaluation of this patient?

Complete blood count with differential and evaluation of blood smear

Prothrombin time (PT) and partial thromboplastin time (PTT) with mixing studies

Bleeding time

Measurement of von Willebrand activity and antigen level

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