Add: create deep vein thrombosis management question with options and…

… explanations

questions/hematology/dvt.md

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+---
+id: HEMA001
+specialty: hematology
+topic: thrombosis
+difficulty: medium
+tags: [dvt, treatment, riskStratification, pharmacology]
+created: 2025-01-02
+lastUpdated: 2025-01-02
+---
+
+# Deep Vein Thrombosis Management
+
+## Question
+A 52-year-old man presents with a left lower extremity DVT confirmed by Doppler ultrasound. He has no recent surgery or immobilization, and no known malignancy. Which management is most appropriate?
+
+## Options
+| Option | Description                                            |
+|--------|--------------------------------------------------------|
+| A)     | Compression stockings only                             |
+| B)     | Low molecular weight heparin (LMWH) for 3 months       |
+| C)     | Oral factor Xa inhibitor for at least 3-6 months       |
+| D)     | IVC filter placement + indefinite anticoagulation      |
+| E)     | Thrombolytic therapy + extended LMWH                   |
+
+<details>
+<summary>View Answer</summary>
+
+## Correct Answer
+C
+
+## Explanation
+1. Unprovoked DVT generally requires at least 3 months of anticoagulation.  
+2. Factor Xa inhibitors (e.g., rivaroxaban/apixaban) are often first-line.  
+3. Extended therapy may be necessary if the patient’s bleeding risk is low.  
+4. Compression stockings help with symptom control but are not definitive.  
+5. IVC filters are for contraindications or recurrent VTE on adequate therapy.  
+
+## References
+- 2021 ACCP Guidelines for Antithrombotic Therapy
+- NEJM 2018: "New Oral Anticoagulants for VTE"
+</details>