Electrocardiogram (ECG)
An Electrocardiogram (ECG) is a simple, non-invasive test that records the electrical activity of the heart, helping identify rhythm and conduction ab...
Arterial Doppler Bilateral
480.00
An Arterial – Carotid Doppler ultrasound assesses blood flow within the carotid arteries, helping identify narrowing or plaque that may increase the risk of stroke.
Turnaround time
1 day
Same-Day Appointments
UKAS Accredited Labs
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Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
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Details about Arterial Doppler Bilateral
What is an Arterial – Carotid Doppler Ultrasound?
An Arterial – Carotid Doppler ultrasound is a non-invasive vascular scan that examines the carotid arteries located on either side of the neck, which supply blood to the brain. Using sound waves, the scan measures blood flow velocity, direction, and arterial wall structure.
The test can detect atherosclerotic plaque, arterial narrowing (stenosis), reduced circulation, or abnormal flow patterns, all of which are important markers for stroke and cardiovascular risk. It does not use radiation and is completely painless.
This scan is widely used in preventive cardiovascular screening, stroke risk assessment, and follow-up of known arterial disease.
When an Arterial – Carotid Doppler is recommended
A carotid Doppler scan is recommended when there is concern about blood supply to the brain or underlying vascular disease.
You may be advised to have this scan if you:
- Have had a stroke or transient ischaemic attack (TIA)
- Experience dizziness, fainting, or visual disturbances
- Have high blood pressure or high cholesterol
- Have diabetes or a history of smoking
- Have a carotid bruit detected on examination
- Have known cardiovascular disease
- Need monitoring of carotid artery narrowing
- Want proactive cardiovascular and stroke risk assessment
Benefits of an Arterial – Carotid Doppler Ultrasound
- Assesses blood flow to the brain
Evaluates circulation through the carotid arteries. - Detects plaque and arterial narrowing
Identifies early or advanced atherosclerosis. - Supports stroke risk assessment
Helps guide prevention and treatment decisions. - Non-invasive and painless
No needles or radiation exposure. - Provides real-time vascular information
Measures flow velocity and direction instantly. - Safe and repeatable
Suitable for ongoing monitoring. - Supports cardiovascular health planning
Useful in risk stratification and follow-up. - Widely used in preventive medicine
A key investigation in vascular assessment.
How the Arterial – Carotid Doppler Ultrasound is performed
Home-Based Ultrasound Scans (UK-wide)
- Book your ultrasound appointment online or by phone
- A qualified clinician travels to your home or chosen location
- The scan is performed in the comfort and privacy of your home
- Scan duration varies by examination type (typically 10–30 minutes)
- Findings are explained during or shortly after the scan
Important:
All ultrasound scans are provided as home-visit services only. This service is available UK-wide, allowing you to access diagnostic imaging without attending a clinic.
Understanding your Arterial – Carotid Doppler results
Normal findings
Blood flows smoothly with no significant narrowing or plaque.
Typical report:
- Normal carotid arterial flow
Mild to moderate stenosis
Plaque is present, causing partial narrowing of the artery.
Typical report:
- Mild / moderate carotid artery stenosis
This may require monitoring and cardiovascular risk management.
Significant stenosis
Marked narrowing may significantly affect blood flow.
Typical report:
- Significant carotid artery stenosis detected
Further specialist assessment may be advised.
How It Works
Simple steps to get your results
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Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
2
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
3
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
Frequently Asked Questions
It detects plaque, narrowing, and blood flow changes in the carotid arteries.
No, it is completely painless.
No, it uses ultrasound only.
Usually 20–30 minutes.
Yes, it is a key tool in stroke prevention.
Yes, especially in people with cardiovascular risk factors.
Yes, results are reviewed and reported by a specialist.
Yes, it is safe to repeat when needed.
It assesses the main arteries supplying the brain.
No special preparation is needed.
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