Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
Private one-leg DVT ultrasound in London from £185, available in clinic or at home, assessing deep veins for blood clots using duplex imaging.
Turnaround time
1 day
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Overview of the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
The Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) is a duplex ultrasound examination of the deep veins in one lower limb.
It is used to detect or exclude a blood clot where symptoms are localised primarily to one leg.
DVT most commonly affects deep veins in the calf, thigh or behind the knee.
A blood clot can partially or completely obstruct venous flow and can become dangerous if part of it travels to the lungs, causing pulmonary embolism.
Ultrasound is a principal imaging investigation for suspected lower-limb DVT.
The sonographer examines the veins directly, evaluates blood flow and gently compresses the veins with the probe.
A healthy vein usually compresses fully.
Failure to compress normally can indicate thrombus.
The scan can also identify some chronic changes left behind by a previous DVT.
This product is available as either a clinic visit or a home visit.
The clinic scan costs £185.
The current home-visit option adds £510, making the total home service £695.
What Does the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) Assess?
Common femoral vein
Assesses the proximal deep venous system in the groin.
Femoral vein
Evaluates deep venous flow through the thigh.
Popliteal vein
Assesses the vein behind the knee.
Relevant calf veins
Distal deep veins are assessed according to the scanning protocol.
Vein compressibility
Determines whether the vein collapses normally under gentle pressure.
Visible thrombus
Clot material may be identified within the vein.
Doppler blood flow
Assesses the direction and pattern of venous flow.
Chronic post-thrombotic changes
Residual scarring or incomplete compressibility from an older clot can sometimes be demonstrated.
Who May Benefit From the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)?
People with sudden swelling of one leg - Unilateral swelling is a common reason to investigate DVT.
People with new calf or thigh pain - Deep venous thrombosis is one possible cause.
People with warmth or redness in one leg - These symptoms can occur with DVT.
People with symptoms after recent surgery or hospitalisation - Reduced mobility increases thrombosis risk.
People with symptoms after prolonged travel - Journeys involving prolonged immobility can increase DVT risk.
People who are pregnant or recently postpartum with unilateral symptoms - Pregnancy increases venous thromboembolism risk.
People with a previous DVT - Recurrent thrombosis can occur.
People with active cancer or another significant thrombosis risk factor - Prompt assessment may be appropriate when compatible symptoms develop.
Symptoms and Reasons to Consider the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
Sudden one-sided leg swelling - DVT can obstruct venous drainage.
Calf tenderness or pain - Deep thrombosis can cause local discomfort.
Thigh pain or swelling - More proximal thrombosis can involve veins higher in the leg.
Warmth or redness - Inflammation around an affected vein can produce skin changes.
Symptoms after immobility - Surgery, bed rest or long journeys can increase clot risk.
Symptoms during pregnancy or within the postpartum period - DVT risk is higher during these periods.
New symptoms in a leg previously affected by DVT - Recurrent thrombosis may require exclusion.
Sudden shortness of breath, sharp chest pain, coughing blood, collapse or severe breathing difficulty can indicate a pulmonary embolism and requires emergency medical attention.
NHS guidance advises that suspected DVT should be assessed promptly and, where a clinician suspects DVT, ultrasound is normally arranged urgently.
How to Prepare for the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
Do not stop blood-thinning medication to prepare for the scan.
If symptoms are severe or rapidly worsening, seek urgent assessment rather than waiting for a routine appointment.
What Happens During the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)?
Is the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) Safe?
The scan uses diagnostic ultrasound and does not involve ionising radiation.
There are no routine injections or contrast agents.
The examination is non-invasive and usually painless.
Compression over a tender area can cause temporary discomfort.
Ultrasound can be repeated where clinically necessary.
How to Book Your Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
The one-leg DVT scan can be arranged either in clinic or as a London home visit.
Choose the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
Select the targeted one-leg DVT scan online.
Select your appointment type
Choose an in-clinic scan for £185 or the home-visit option, currently totalling £695.
Provide your symptoms
Confirm which leg is affected and when symptoms began.
Attend or receive your home visit
A vascular sonographer performs the duplex examination.
Urgent action if necessary
A positive acute DVT finding requires prompt medical management.
Receive your report
The authorised result is delivered securely.
When Will I Receive My Results?
London Blood Tests currently lists the turnaround as approximately 1 day.
Because DVT is clinically important, relevant findings can require urgent escalation.
The scan itself commonly takes approximately 20–30 minutes.
Understanding Your Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) Results
A report stating no evidence of DVT indicates that no ultrasound evidence of a deep-vein clot was identified in the vessels examined.
An acute DVT result means a new clot has been detected.
The report normally documents which vein or veins are involved and how extensive the thrombosis appears.
Chronic post-thrombotic changes can also be seen after an older clot.
A negative scan does not necessarily explain why the leg is swollen or painful.
Cellulitis, muscle injury, Baker's cyst, venous insufficiency and other conditions can produce overlapping symptoms.
In selected cases where the clinical probability remains high, repeat assessment may be required.
What Can the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) Detect?
Acute deep vein thrombosis - A new blood clot can be identified.
Proximal DVT - Femoral and popliteal thrombosis can be assessed.
Selected distal DVT - Calf deep veins can be examined according to protocol.
Venous obstruction - Impaired or absent flow can be demonstrated.
Chronic post-thrombotic changes - Previous DVT can leave residual abnormalities.
Limitations of the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg)
Only one leg is examined comprehensively - Bilateral symptoms require the bilateral DVT scan.
The scan does not assess the lungs - Pulmonary embolism requires a separate emergency diagnostic pathway.
Some pelvic-vein thromboses require additional imaging - Standard leg ultrasound cannot comprehensively assess the pelvis.
Very early or distal thrombosis can occasionally require repeat imaging - Clinical probability remains important.
A negative DVT scan does not exclude other causes of swelling - Further assessment may be needed.
Why Book the Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) With London Blood Tests?
Clinic or home option in London - Choose the setting most appropriate to your circumstances.
Focused DVT assessment - The deep venous system of the symptomatic leg is examined.
Duplex ultrasound technology - Anatomy, compressibility and blood flow are assessed.
No ionising radiation - The scan uses sound waves.
Professional vascular sonography - The examination is performed using an established DVT ultrasound technique.
Rapid clinical information - Acute thrombosis can be identified promptly.
Fast reporting - The current turnaround is approximately 1 day.
Clear pricing - The clinic scan costs £185, with the current home-visit option totalling £695.
Private Deep Vein Thrombosis (DVT) Ultrasound Scan (One Leg) in London
London Blood Tests provides private one-leg DVT ultrasound in London with clinic and home-visit options.
The clinic scan costs £185.
The current home option adds £510, bringing the total home-visit price to £695.
The deep veins of one leg are assessed using compression and Doppler ultrasound.
The current report turnaround is approximately 1 day.