Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Pulmonary Embolism ?
    ### Response:
    Pulmonary embolism (PE) is diagnosed based on your medical history, a physical exam, and test results.
                
Doctors who treat patients in the emergency room often are the ones to diagnose PE with the help of a radiologist. A radiologist is a doctor who deals with x rays and other similar tests.
    