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    https://www.healthline.com › health › doppler-ultrasound-exam-of-an-arm-or-leg

    Doppler Ultrasound Exam of Arm or Leg - Healthline

    • What is a Doppler ultrasound?
      A Doppler ultrasound is a test that uses high-frequency sound waves to measure the amount of blood flow through your arteries an… See more

    Why do I need a Doppler ultrasound?

    Your doctor may suggest a Doppler ultrasound exam if you show signs of decreased blood flow in the arteries or veins of your legs, arms, or neck. A reduced amount of b… See more

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    How should I prepare for a Doppler ultrasound?

    In general, there’s no preparation required for this test. If you’re a smoker, your doctor may ask you to stop smoking for several hours before the test. Smoking causes your blood vessel… See more

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    What happens during a Doppler ultrasound?

    A Doppler ultrasound is a noninvasive, painless procedure that doesn’t expose you to harmful radiation. There are no risks associated with this test, and most people feel little to … See more

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    How do I interpret the test results?

    Normal test results indicate thatyou have no narrowing or blockages in your arteries. It also means that the blood pressure in your arteries is normal.Abnormal blood flow pattern… See more

    Healthline
    What is a Doppler ultrasound?
    A Doppler ultrasound is a test that uses high-frequency sound waves to measure the amount of blood flow through your arteries and veins, usually those that supply blood to your arms and legs. Vascular flow studies, also known as blood flow studies, can detect abnormal flow within an artery or blood vessel.
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    Table of Contents
    Why do I need a Doppler ultrasound?
    How should I prepare for a Doppler ultrasound?
    What happens during a Doppler ultrasound?
    How do I interpret the test results?
    What is a Doppler ultrasound?