Thrombosis and Embolism

Which of the following is the PRIMARY mechanism by which tissue factor (TF) initiates the extrinsic coagulation pathway in thrombosis?

Virchow's triad describes three major factors predisposing to thrombosis. Which of the following is NOT one of the components of Virchow's triad?

A 62-year-old man with a history of atrial fibrillation and hypertension presents with acute left-sided weakness and speech difficulty. Imaging confirms acute ischemic stroke. Which is the most common site of thrombus formation in this patient?

All of the following statements regarding arterial versus venous thrombosis are correct EXCEPT:

A 72-year-old woman with a prosthetic mechanical mitral valve (on warfarin with INR 2.5) presents with acute onset right lower limb pain, coolness, and absent femoral pulse. Doppler ultrasound confirms acute thrombosis of the right femoral artery. What is the most appropriate immediate management?