Lec 11 Thrombi and Emboli Quiz
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Questions and Answers

What imaging modality is considered the best for diagnosing deep vein thrombosis (DVT)?

  • Computed tomography pulmonary angiography (CTPA)
  • Doppler venous ultrasound (correct)
  • Magnetic resonance venography
  • Contrast venography
  • Which of the following is NOT considered a genetic risk factor for thromboembolism?

  • Loss of coagulation function disorders
  • Gain of coagulation function disorders
  • Acquired risk factors (correct)
  • Genetic factors that cause hypercoagulability
  • In critically ill patients, what imaging modality is typically used as the gold standard for diagnosing pulmonary embolism (PE)?

  • Magnetic resonance venography
  • Contrast venography
  • Computed tomography pulmonary angiography (CTPA) (correct)
  • Doppler venous ultrasound
  • Which of the following is a primary prophylaxis method for preventing deep vein thrombosis (DVT)?

    <p>Mechanical therapy with compression stockings</p> Signup and view all the answers

    What percentage of hospitalized patients are at risk of thromboembolism according to research?

    <p>50%</p> Signup and view all the answers

    "Proximal veins" refer to which veins in the context of deep vein thrombosis?

    <p>Popliteal and femoral veins</p> Signup and view all the answers

    What is the term used to describe a freely flowing clot that has broken from its attachment?

    <p>Embolus</p> Signup and view all the answers

    Where do most deep venous thrombosis (DVT) usually arise according to the text?

    <p>In the calf veins</p> Signup and view all the answers

    What component makes up the main part of venous thrombi according to the text?

    <p>Fibrin</p> Signup and view all the answers

    In what situation do emboli that originate in the venous system or right side of the heart generally flow into the lungs?

    <p>Pulmonary embolism</p> Signup and view all the answers

    Which action helps prevent deep venous thrombosis (DVT) by moving blood past the valves?

    <p>Skeletal muscle pump</p> Signup and view all the answers

    What predisposes the endothelium around venous valves to be hypoxemic according to the information provided?

    <p>Avascular nature of venous valves</p> Signup and view all the answers

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