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 – Carotid Doppler
380.00
At-home carotid arterial Doppler scans, delivering accurate vascular imaging and results at home.
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 – Carotid Doppler
What is an Arterial – Carotid Doppler Ultrasound?
An Arterial – Carotid Doppler Ultrasound is a non-invasive vascular scan that uses high-frequency sound waves and Doppler technology to visualise the carotid arteries in the neck and measure blood flow. It does not use ionising radiation and is considered very safe.
The scan evaluates arterial wall structure, plaque presence, and flow velocity, helping detect narrowing (stenosis) that can increase the risk of transient ischaemic attack (TIA) or stroke. Doppler analysis shows how well blood is flowing to the brain in real time.
When performed at home with portable medical-grade equipment, it offers the same diagnostic value as clinic-based scanning, with added comfort and convenience.
Why do I need a Carotid Doppler Ultrasound?
A carotid Doppler ultrasound is recommended for people with cardiovascular risk factors, neurological symptoms, or as part of preventative vascular screening. It helps identify silent arterial disease before serious events occur.
You may need a carotid Doppler ultrasound if you:
- Have high blood pressure
- Have high cholesterol
- Have diabetes
- Are a current or former smoker
- Have a family history of stroke
- Have known cardiovascular disease
- Have had a TIA or stroke
- Experience dizziness, blackouts or visual disturbance
- Have a carotid bruit on examination
- Want preventative cardiovascular screening
Early detection allows timely risk reduction and treatment planning.
Benefits of a Carotid Doppler Ultrasound
- Gold-standard carotid artery assessment
Accurately evaluates carotid narrowing and plaque. - Stroke risk identification
Detects changes before symptoms occur. - Safe and radiation-free
Suitable for repeated monitoring. - Real-time blood flow analysis
Measures velocity and direction of flow. - Convenient home-based service
No clinic visits or travel required. - Fast and painless
Typically completed within minutes. - Guides treatment decisions
Supports medication optimisation or specialist referral. - Provides reassurance
Confirms normal flow or identifies risk early.
Step-by-Step – How We Offer Ultrasound Scans
Home-Based Arterial – Carotid Doppler Ultrasound (UK-wide)
- Book your appointment online or by phone
- A qualified clinician travels to your home or chosen location
- Portable medical-grade Doppler ultrasound equipment is used
- The scan typically takes 15–30 minutes
- Findings are explained during or shortly after the scan
Important:
All ultrasound scans are provided exclusively as home-visit services. This service is available UK-wide, allowing access to vascular imaging without attending a clinic.
Your Carotid Doppler Results Explained
Results are interpreted using blood flow velocities and degree of narrowing, in line with UK clinical standards.
Normal Findings
What this means:
- Normal arterial diameter
- Smooth vessel walls
- Normal blood flow velocities
What it suggests:
Low risk of carotid-related stroke at the time of scanning.
Mild to Moderate Stenosis
What this may show:
- Early plaque formation
- Mild to moderate narrowing
- Increased flow velocity
What it suggests:
Often managed with lifestyle changes and medication (e.g. cholesterol and blood pressure control).
Significant or Severe Stenosis
What this may show:
- Marked narrowing of the artery
- High flow velocities
- Reduced downstream flow
What it suggests:
May require urgent referral to a vascular specialist for further assessment and management.
How It Works
Simple steps to get your results
1
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
No. The scan is painless and non-invasive. A probe is gently moved over the neck.
Most carotid Doppler scans take 15 to 30 minutes.
No special preparation is required.
Yes. A qualified clinician visits your home with portable Doppler ultrasound equipment.
Yes. It uses sound waves, not radiation, and is extremely safe.
It identifies risk factors such as arterial narrowing but cannot predict exact timing of events.
Yes. Findings are usually explained during or immediately after the scan.
This depends on findings and risk factors. Monitoring intervals will be advised if needed.
People with cardiovascular risk factors or those seeking preventative vascular assessment.
You may be advised on medication, lifestyle changes or referral to a vascular specialist.
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