Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Deep Vein Thrombosis ?
    ### Response:
    Your doctor will diagnose deep vein thrombosis (DVT) based on your medical history, a physical exam, and test results. He or she will identify your risk factors and rule out other causes of your symptoms.
                
For some people, DVT might not be diagnosed until after they receive emergency treatment for pulmonary embolism (PE).
    