A patient presents with a coagulation disorder characterized by easy bruising, petechiae, and a prolonged bleeding time. Which of the following is the most likely underlying cause of this condition?

A Deficiency of factor VIII
B Deficiency of von Willebrand factor
C Abnormality in platelet function ✓
D Deficiency of factor XIII

Explanation

The symptoms described, such as easy bruising, petechiae, and a prolonged bleeding time, are indicative of a disorder affecting primary hemostasis, which is typically related to platelet dysfunction or abnormalities.

Source

Clinical hematology guides and case studies
Hematology Hematology: Coagulation Disorders Hematology: Coagulation Disorders Hard MEDICAL Confidence: medium