Review Note
Last Update: 07/22/2024 06:03 AM
Current Deck: - ALL SAR 1 ANKI Decks -::Medace Qbank
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Front (Question)
A 19-year-old man is brought to the hospital after injuring his knee playing football. The knee is swollen and painful to move. He has no prior history of bleeding disorders. Arthro-centesis of the knee reveals 20 cc of blood. Further investigations show that his platelets are 170,000/mL, PT is normal, PTT is elevated, bleeding time is normal, factor VIII is normal, factor IX is reduced, and the ristocetin cofactor assay is normal. select the most likely diagnosis.
- von Willebrand disease
- hemophilia A
- hemophilia B
- thrombotic thrombocytopenic purpura (TTP)
- immune thrombocytopenic purpura (ITP)
Back (Answer)
hemophilia B
Hemophilia B is clinically indistinguishable from hemophilia A and is also inherited via the X chromosome. The bleeding time is usually normal, but the PTT is usually elevated. Differentiation from hemophilia A requires factor assay.
Hemophilia B is clinically indistinguishable from hemophilia A and is also inherited via the X chromosome. The bleeding time is usually normal, but the PTT is usually elevated. Differentiation from hemophilia A requires factor assay.
Note (Extra)
Reference
ankihub_id
f19bfe17-ab60-47e1-b0a2-405546304291
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