Wells score for DVT (modified)

Jump to navigation Jump to search

Editor(s)-In-Chief: The APEX Trial Investigators, C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]


Modified Wells Score for DVT

Modified Wells Score Calculator for DVT

This handy calculator computes the pre-test probability of deep vein thrombosis (DVT) using modified Wells criteria.[1][2][3][4][5]

Check all boxes that apply to your patient:

Modified Wells Score Calculator for DVT
Variable Score
Active cancer (treatment within last 6 months or palliative) 1
Calf swelling >3 cm compared to other calf (measured 10 cm below tibial tuberosity) 1
Collateral superficial veins (non-varicose) 1
Pitting edema (confined to symptomatic leg) 1
Swelling of entire leg 1
Localized pain along distribution of deep venous system 1
Paralysis, paresis, or recent cast immobilization of lower extremities 1
Recently bedridden > 3 days, or major surgery requiring regional or general anesthetic in past 12 weeks 1
Previously documented DVT 1
Alternative diagnosis at least as likely -2
Wells Score:


The interpretation of the score is as follows:

  • Score <2: DVT is unlikely (Prevalence of DVT or PE - 6%)
  • Score ≥2: DVT is likely (Prevalence of DVT or PE - 28%)

See also


  1. Wells PS, Anderson DR, Rodger M, Forgie M, Kearon C, Dreyer J, Kovacs G, Mitchell M, Lewandowski B, Kovacs MJ (September 2003). "Evaluation of D-dimer in the diagnosis of suspected deep-vein thrombosis". N. Engl. J. Med. 349 (13): 1227–35. doi:10.1056/NEJMoa023153. PMID 14507948.
  2. Scarvelis D, Wells PS (October 2006). "Diagnosis and treatment of deep-vein thrombosis". CMAJ. 175 (9): 1087–92. doi:10.1503/cmaj.060366. PMC 1609160. PMID 17060659.
  3. Wells PS, Owen C, Doucette S, Fergusson D, Tran H (January 2006). "Does this patient have deep vein thrombosis?". JAMA. 295 (2): 199–207. doi:10.1001/jama.295.2.199. PMID 16403932.
  4. Bates SM, Jaeschke R, Stevens SM, Goodacre S, Wells PS, Stevenson MD, Kearon C, Schunemann HJ, Crowther M, Pauker SG, Makdissi R, Guyatt GH (February 2012). "Diagnosis of DVT: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines". Chest. 141 (2 Suppl): e351S–e418S. doi:10.1378/chest.11-2299. PMC 3278048. PMID 22315267.
  5. Silveira PC, Ip IK, Goldhaber SZ, Piazza G, Benson CB, Khorasani R (July 2015). "Performance of Wells Score for Deep Vein Thrombosis in the Inpatient Setting". JAMA Intern Med. 175 (7): 1112–7. doi:10.1001/jamainternmed.2015.1687. PMID 25985219.