Wells clinical decision rule for DVT
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Clinical characteristics
- Active cancer (+1)
- Paralysis, paresis, or recent plaster immobilization of the LE (+1)
- Recently bedridden for 3 day or more OR major surgery within 4 weeks (+1)
- Localized tenderness along the distribution of the deep venous system (+1)
- Entire swollen leg (+1)
- Calf swelling > 3 cm compared to non affected leg (+1)
- Pitting edema (+1)
- Collateral superficial veins, nonvaricose (+1)
- Alternative diagnosis as likely as or more likely than deep vein thrombosis (-2)
2
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Low probability of DVT
-2 to 0 indicates
3
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Moderate probability of DVT
1 to 2 indicates
4
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High probability of DVT
3 or more indicates
Note 
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