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Deep Vein Thrombosis Clinical Presentation and Diagnosis

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Deep Vein Thrombosis Clinical Presentation and Diagnosis

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Questions and Answers

What is the key investigation used to guide investigations for DVT?

Wells' criteria for DVT

When is D-dimer test useful in ruling out DVT?

D-dimer test is useful for ruling out DVT in low-moderate risk patients with a negative test.

What is the recommended initial dose of rivaroxaban for acute symptomatic DVT management?

15 mg PO BID for the first 21 days

How is LMWH dosed in patients with renal failure?

Dalteparin 200 IU/kg SC q24 h or enoxaparin 1 mg/kg SC q24 Signup and view all the answers

When should warfarin be started in relation to LMWH for DVT management?

Warfarin is started at the same time as LMWH Signup and view all the answers

What is the recommended duration of anticoagulation for DVT in patients with ongoing coagulopathy?

Life-long anticoagulation Signup and view all the answers

What are the ECG changes seen in PE?

Sinus tachycardia, right ventricular strain (S1Q3T3), T wave inversions in anterior and inferior leads, AFib Signup and view all the answers

What are the CXR findings indicative of PE?

Hampton's hump or Westermark's sign Signup and view all the answers

When is D-dimer useful in ruling out PE?

It is useful in ruling out PE if negative in low-moderate risk patients. Signup and view all the answers

What is the recommended imaging modality for diagnosing PE?

CT pulmonary angiography or V/Q scan Signup and view all the answers

What is the management approach for PE?

Anticoagulation with similar duration as for DVT, consider thrombolysis in massive PE Signup and view all the answers

Under what conditions might catheter-directed thrombolysis or surgical thrombectomy be considered for PE?

Considered in cases of massive PE or when anticoagulation is contraindicated Signup and view all the answers