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Template:Modified Wells Score
From WikEM
Can be applied for patients whose clinical presentation is concerning for a DVT in order to risk stratify.
- Active cancer (<6 mo) - 1pt
- Paralysis, paresis, or immob of extremity - 1pt
- Bedridden >3 d b/c of symptoms (within 4 wk) - 1pt
- TTP along deep venous system - 1pt
- Entire leg swollen - 1pt
- Unilateral calf swelling >3cm below tibial tuberosity - 1pt
- Unilateral pitting edema - 1pt
- Collateral superficial veins (not varicose) - 1pt
- Previously documented DVT - 1pt
- Alternative diagnosis as likely or more likely than DVT - (-)2pts
- A score of 0 or lower → minimal risk - DVT prevalence of 5%. D-dimer testing is safe in this group - negative d-dimer decreases the probability of disease to <1% allowing an ultrasound to be deferred.
- A score of 1-2 → moderate risk - DVT prevalence of 17%. D-dimer testing still effective and a negative test decreases post-test probability disease to <1%
- A score of 3 or higher → high risk - DVT prevalence of 17-53% → patients should receive an ultrasound[1]
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