The laboratory tests used in the diagnosis of vWD include all of the following except:

Question

Quizplus · Accepted Answer

The laboratory tests used in the diagnosis of vWD do not include the prothrombin time (PT), which measures the activity of the extrinsic and common coagulation pathways. The other options, including bleeding time, activated partial thromboplastin time (APTT), Factor VIII levels, and platelet aggregation in response to ristocetin, are all commonly used in the diagnosis of vWD.

The Laboratory Tests Used in the Diagnosis of VWD Include