Detection, Diagnosis, and Management of Bleeding and Clotting Disorders Flashcards

1
Q

How can von Willebrand disease present in a clinical history?

A

1) Frequent epistaxis
2) Easy bruising
3) Menorrhagia

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2
Q

What lab tests can help clue you in for suspected von Willebrand disease?

A

1) vWF Antigen and activity
2) aPTT
3) Factor VIII

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3
Q

What is used to treat vWD type 1?

What is its MOA?

A

1) Desmopressin

2) Helps release of vWF from endothelial cells/platelets

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4
Q

How can Hemophilia A present in a clinical history?

A

1) Oral bleeding after a dental procedure
2) Easy bruising
3) Joint pain

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5
Q

What lab tests can help clue you in for suspected Hemophilia A?

A

1) aPTT
2) Factor VIII levels
3) Genetic tests

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6
Q

If only the time for aPTT is abnormal then what factors associated with the bleeding are defected?

A

1) VIII
2) IX
3) XI

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7
Q

If only the time for PT is abnormal then what factors associated with the bleeding are defected?

A

VII

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8
Q

Genetic testing for hemophilia A is essential because?

A

1) Help determine disease severity

2) Eliminate vWD in differential

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9
Q

What is the genetic inheritance of Hemophilia A?

How may an unaffected carrier mom pass the gene to her daughter and son?

A

1) X-linked recessive

2) Son can become affected while daughter can be unaffected carrier

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10
Q

The most standard therapy for Hemophilia A is?

A

Recombinant FVIII

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11
Q

What is a debilitating consequence of chronic hemophilia?

A

Hemophilic arthropathy

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12
Q

How can acquired hemophilia present in a clinical history?

A

1) Menorrhagia, Epistaxis, Ecchymoses
2) Mucosal pallor
3) Hypotensive
4) Family history of autoimmune disease

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13
Q

What lab tests can help clue you in for suspected acquired hemophila?

A

1) Prolonged PTT

2) Mixing study for PTT did not correct

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14
Q

If a mixing study for PTT fails to correct than what is most likely the cause?

A

Presence of an Factor VIII inhibitory antibody

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15
Q

If a patient tests positive for factor VIII inhibitor what is their most likely diagnosis?

A

Acquired Hemophilia A

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16
Q

How do you treat Acquired hemophilia A?

A

1) Give factors VIII and VIIa

2) Immunosuppression

17
Q

While acquired hemophilia A is often seen in older adults, what can cause it to happen in a younger patient?

A

Occur during postpartum

18
Q

What conditions are acquired hemophilia A most associated with?

A

1) RA

2) SLE

19
Q

What painful, cramping sensation typically originates in the calf and can easily be confused with muscle strain?

A

Deep Vein Thrombosis

20
Q

If a DVT is not caught what complication can arise?

A

Thromboembolism

21
Q

As an embolic mass lodges in pulmonary circulation what may ensue?

A

Acute hypoxia and right heart failure

22
Q

What are questions to ask if you suspect thromboembolism?

What are questions to ask if you suspect a pulmonary embolus?

What is a general question to ask for any form of embolus?

A

1) Had a PE/DVT before?
2) Cancer patient?
3) Recent hospitalization, surgery, fracture?

1) Any hemoptysis?
2) Tachycardia?

1) Are you older than 65?

23
Q

What lab test can be performed to diagnose a thromboembolism?

Why is this test used?

A

1) D-Dimer

2) Great exclusion test for thromboembolism

24
Q

What radiography can be performed to diagnose a thromboembolism?

A

1) Ultrasound for DVT

2) CT angiogram for PE

25
Q

What are D-dimers?

A

Degradation product of cross-linked fibrin

26
Q

How is a compression ultrasound used for DVT?

A

Normally, you can compress a vein lumen but if there is a DVT, the lumen is not going to compress because of the space-occupying clot

27
Q

What can cause bowel infarction due to mesenteric vein thrombosis?

A

Protein C deficiency

28
Q

How can protein C deficiency present in a clinical history?

A

1) Abdominal pain
2) Multiple miscarriages
3) Parent death from stroke

29
Q

What type of thrombosis occurs commonly in coronary/cerebral arteries, is platelet-rich and occurs via high shear stress?

What type of thrombosis occurs in veins, is rich with RBCs and involves the lower extremities?

A

1) White thrombus

2) Red thrombus

30
Q

White thrombosis is mostly related to?

Red thrombosis is mostly related to?

A

1) Atherosclerosis

2) Stasis

31
Q

What is a paradoxical embolism?

This is caused by what embryo phenomenon?

A

1) Passage of an embolus from the venous circulation to the arterial circulation
2) Patent foramen ovale

32
Q

What daily medication can cause a DVT/PE?

A

Oral contraceptives (more estrogen the more likely)

33
Q

How long should you be on anticoagulants if you had a thromboembolism with no underlying conditions or enduring risk factors?

A

3-6 months

34
Q

What can be used as a non-pharmacologic option for thromboembolisms?

A

Inferior Vena Cava Filter