A 20 year old girl is brought to the clinic with frequent nosebleeds and easy bruising. Laboratory results reveal normal plate count, prolonged aPTT, and low ristocetin cofactor activity. What’s the likely diagnosis?
سؤال مجاني 4 من 10 اليوم · اشترك وكمّل بدون حد
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الإجابة والشرح
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الإجابة: B. Von Willebrand disease
✓ مطابق للمصدر
Hematology🩸.pdf · p. 39
A young woman with mucocutaneous bleeding (epistaxis, easy bruising), a normal platelet count, a prolonged aPTT (low factor VIII) and low ristocetin cofactor activity has von Willebrand disease. The ristocetin cofactor assay is the diagnostic test for vWF function.
- Haemophilia B is X-linked (rare in females) and has normal vWF activity.
- Thrombocytopenia is excluded by the normal platelet count.
- المصدر
- Hematology🩸.pdf · p. 39
- المحاضرة
- Inherited Bleeding Disorders · Hematology · Module C
- ظهر في
- MED42 ♀ EOM C