DVT Investigations: RFL

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Under Review — this page was due to be reviewed by Thursday, 30 May 2024. The information shown here may be outdated.

Direct access vascular studies service for ambulatory patients with suspected acute deep vein thrombosis (DVT) at Royal Free London (RFL).

If the patient is found to have an acute DVT, they will be sent to A&E or haematology for a same day follow-up.

The results are emailed to the practice by the secure email address supplied on the request form. Should the patient not be found to have acute DVT, the GP retains responsibility for follow-up. 

Eligibility Criteria


  • see inclusion criteria on request form (includes modified Wells clinical score).


  • patients with signs or symptoms of COVID-19 and currently in self-isolation (whether through test positivity, symptoms or contact with others); patients should be screened for this prior to referral
  • patients not registered with a GP, or not ambulatory, as the service cannot accommodate them via the direct access referral route; consider sending ineligible patients to local A&E.

How to Refer

EMIS form

Referral methods: Email

Referrers should also telephone the department directly via 020 7830 2862 to arrange a same day appointment for the patient. After this, complete the DVT Investigation Referral Form - NCL - RFH, including the agreed appointment time on the form, and send to rf-tr.vascularstudies@nhs.net 

Where to find the form

  • Barnet: BAR Global Documents > Imaging folder
  • Camden: The DVT - RFH referral form is in the CAM Global folder. Please use the EMIS Search to find it.
  • Enfield: ENF Global Documents > Imaging folder
  • Haringey: HAR Global Documents > Imaging folder
  • Islington: ISL Global Documents > Imaging folder


RFL DVT Investigations

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Review date: Thursday, 30 May 2024