Hemostasis and Deep Vein Thrombosis Quiz
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Questions and Answers

What initiates the vasoconstriction phase of hemostasis after a blood vessel is injured?

  • Fibrinolysis
  • Localized myogenic spasm (correct)
  • Collagen exposure
  • Thrombin activation

Which component is not involved in the formation of the platelet plug?

  • Collagen
  • Thromboxane
  • ADP
  • Thrombin (correct)

What is the role of fibrin in the coagulation process?

  • Forms the structural basis of a blood clot (correct)
  • Stimulates the production of thrombin
  • Initiates vasoconstriction
  • Causes platelets to aggregate

Which factor is not required for the coagulation cascade?

<p>Plasmin (C)</p> Signup and view all the answers

Which statement about deep vein thrombosis (DVT) is incorrect?

<p>DVTs cannot occur in upper extremities. (B)</p> Signup and view all the answers

Which drug class does enoxaparin belong to?

<p>Low molecular weight heparins (B)</p> Signup and view all the answers

What is a major side effect of anticoagulants like warfarin?

<p>Increased risk of bleeding (D)</p> Signup and view all the answers

Which is a nonpharmacological prophylaxis for VTE?

<p>Compression stockings (B)</p> Signup and view all the answers

What describes a group of three primary risk factors for venous thromboembolism?

<p>A group of three primary risk factors for venous thromboembolism (C)</p> Signup and view all the answers

What is the main adverse effect associated with thrombolytic therapy?

<p>Bleeding (B)</p> Signup and view all the answers

What condition is characterized by abnormal venous circulation and chronic ulcers due to untreated DVT?

<p>Venous stasis dermatitis (A)</p> Signup and view all the answers

Which of the following is not a typical symptom of deep vein thrombosis (DVT)?

<p>Cyanosis (D)</p> Signup and view all the answers

What is the preferred diagnostic test for detecting pulmonary embolism?

<p>Computed tomography pulmonary angiogram (CTPA) (B)</p> Signup and view all the answers

Which of the following medications is classified as a direct oral anticoagulant (DOAC) used in managing VTE?

<p>Rivaroxaban (A)</p> Signup and view all the answers

What condition can result from increased pulmonary blood flow resistance due to a pulmonary embolism?

<p>Pulmonary hypertension (B)</p> Signup and view all the answers

Which potential complication can arise from pulmonary embolism?

<p>Right sided heart failure (C)</p> Signup and view all the answers

What is the purpose of using compression stockings in the prevention of VTE?

<p>To reduce incidence and severity of postthrombotic syndrome (C)</p> Signup and view all the answers

Which medication is primarily used for the anticoagulation treatment of VTE?

<p>Apixaban (D)</p> Signup and view all the answers

What is a common risk factor for developing venous thromboembolism?

<p>Obesity (A)</p> Signup and view all the answers

What role does the D-dimer test play in the diagnosis of pulmonary embolism?

<p>It helps in ruling out PE. (B)</p> Signup and view all the answers

Study Notes

Hemostasis

  • Vasoconstriction is initiated by localized myogenic spasm following blood vessel injury
  • Thrombin is not involved in the formation of the platelet plug
  • Fibrin forms the structural basis of a blood clot
  • Plasmin is not part of the coagulation cascade
  • Vitamin K, calcium, and prothrombin activator IIa are required for the coagulation cascade

Deep Vein Thrombosis (DVT)

  • DVTs above the knee have a higher risk of causing pulmonary embolism
  • Over 90% of pulmonary embolism cases are due to leg DVTs
  • DVTs can occur in upper extremities
  • Ddimer tests are used to diagnose DVT

Medications and Treatments

  • Enoxaparin is a low molecular weight heparin
  • A major side effect of anticoagulants like warfarin is an increased risk of bleeding
  • Compression stockings are a nonpharmacological prophylaxis for VTE
  • The main adverse effect associated with thrombolytic therapy is bleeding
  • Warfarin inhibits vitamin K and is commonly used for VTE treatment
  • Rivaroxaban is a direct oral anticoagulant (DOAC) used in the management of VTE

Venous Thromboembolism (VTE)

  • Venous stasis dermatitis is characterized by abnormal venous circulation and chronic ulcers due to untreated DVT
  • Low blood pressure is not a risk factor for VTE
  • Virchow’s Triad is a group of three primary risk factors for venous thromboembolism: immobility, enhanced coagulation, and vascular damage
  • Cyanosis is not a typical symptom of DVT
  • Computed tomography pulmonary angiogram (CTPA) is the preferred diagnostic test for pulmonary embolism

Pulmonary Embolism (PE)

  • The increase in pulmonary blood flow resistance due to PE can lead to pulmonary hypertension
  • Right sided heart failure is a potential complication of pulmonary embolism
  • Compression stockings reduce the incidence and severity of postthrombotic syndrome

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Description

Test your knowledge on hemostasis, deep vein thrombosis (DVT), and their associated treatments. This quiz covers the mechanisms of coagulation, risk factors for DVT, and pharmacological interventions. Understand the importance of medications like warfarin and enoxaparin in managing these conditions.

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