Anderson et al. Thrombosis in the Emergency Department. Arch Intern Med

Clinical Evaluation for Predicting DVT

Active Cancer (Tx ongoing or within previous 6 mo or palliative)

Paralysis, paresis, or recent plaster immobilization of lower ext

Recently bedridden > 3 days and/or major surgery within      12 weeks requiring general or regional anesthesia

Localized tenderness along distribution of deep venous system

Entire leg swollen

Calf swelling 3cm > than asymptomatic side (measured 10cm below tibial tuberosity)

Pitting edema in symptomatic leg only

Collateral superficial veins (non-varicose)

Alternative diagnosis at least as likely as DVT

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Pre-Test Probability of DVT:

Prob of DVT Sono(+): %      Prob of DVT Sono(-): %

95%CI: -         95%CI: -

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