Lecture 14 Haemostasis and Thrombosis in Practice Flashcards

1
Q
  • A 20 month old boy attends accident and emergency with his father
  • The child has refused to walk for the past 2 days having been walking unsupported for 4 months
  • The right knee is slightly swollen and feels warm to touch
  • Blood is aspirated from the knee

What is the most likely diagnosis?

A

Haemophilia A

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2
Q

What factor is deficient in Haemophilia A

A

Factor VIII

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3
Q

What is the inheritance of Haemophilia

A

X-linked recessive

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4
Q

What is the main treatment for Haemophilia A

A

Recombinant factor VII

Administered every day

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5
Q

What are the complications with treatment of haemophilia A

A

Inhibitory antibodies

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6
Q
  • A 24 year old female student presents with a 4 day history of easy bruising and small red spots on her ankles
  • She has no previous history of abnormal bleeding
  • Previous tonsillectomy with no bleeding
  • Recently been off colour with flu like symptoms
  • Only medication COCP
  • Petechiae
  • She has petechiae, menorrhagia, epistaxis easy bruising, and blood blisters in her mouth

What is the diagnosis?

A

Thrombocytopenia

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7
Q

Name 3 causes of thrombocytopenia

A

AML
Aplastic anaemia
ITP

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8
Q

What illnesses are associated with Thrombocytopenia

A

HIV
EBV
SLE

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9
Q
  • A 70 year old man has excessive bleeding after a colectomy for cancer
  • He has bleeding from his abdominal wound but not from his drain or his indwelling line
  • He has had surgery in the past but had no abnormal bleeding
  • Which is the most likely cause of this?
A

Most likely surgical bleeding (single site does not suggest coagulopathic bleeding.

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10
Q

A 65 year old man takes aspirin because of a previous history of TIA. How does aspirin work?

A

COX-1 inhibitor

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11
Q

What is Factor V Leiden

A

Is a mutation of one of the clotting factors in the blood. This mutation can increase your chance of developing abnormal blood clots, most commonly in your legs or lungs

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