Doppler assessment: Information for patients
A Doppler assessment is a simple, non-invasive test used to check how well blood is flowing in your legs. It helps healthcare professionals decide the safest and most effective treatment for leg wounds, swelling, or conditions like varicose veins and leg ulcers.
What is a Doppler assessment?
A Doppler assessment uses a handheld ultrasound device to listen to the blood flow in the arteries in your legs. It helps calculate something called the ankle brachial pressure index (ABPI), which compares the blood pressure in your ankle with the blood pressure in your arm.
Why is a Doppler completed?
This test is important because it helps:
- check if your leg wounds are caused by poor circulation
- decide whether compression therapy (such as bandaging or compression stockings) is safe for you
- monitor conditions such as peripheral arterial disease (PAD)
Your nurse or doctor may recommend a Doppler assessment if you have:
- a leg ulcer or wound that isn’t healing
- leg pain, swelling, or skin changes
- a history of poor circulation or vascular disease
What to expect during the Doppler assessment?
- You will be asked to lie down and rest for about 10 to 15 minutes before the test begins.
- A blood pressure cuff is applied.
- A small amount of gel is applied, and the Doppler device is moved over the skin to listen to blood flow.
- The test usually takes around 60 minutes and is painless.
After the test
Your nurse or clinician will explain the results to you. Based on the results:
- You may be offered compression bandaging or stockings to help with healing.
- If poor blood flow is detected, you may be referred for further tests or treatment with a specialist.
How to prepare
- Wear loose-fitting clothing that can be easily removed or rolled up.
- Avoid smoking or drinking caffeine for at least 2 hours before the test, as these can affect blood flow.
- Let your nurse know if you are on any blood pressure medication.
When will I get my results?
In most cases, your nurse will discuss the results with you immediately after the test. In some situations, further review or referral may be needed.
Follow up and support
If you’re unsure about the test or have questions about your treatment, please speak to your nurse. We’re here to support you and ensure you feel informed and comfortable about your care.
