1️⃣ Wells' score for deep vein thrombosis (DVT) [Online calculator (MD Calc)]
🔹Active cancer (treatment ongoing or within previous 6/12 or
palliative): 1 pt
🔹Paralysis, paresis or recent immobilization of lower extremities: 1 pt
🔹Recently bedridden more than 3/7 or major surgery within 4/52: 1 pt
🔹Localized tenderness along the distribution of the deep venous
system: 1 pt
🔹Entire leg swollen: 1 pt
🔹Calf swelling >3 cm than asymptomatic side (measured 10 cm below tibial tuberosity): 1 pt
🔹Pitting odema, greater in the symptomatic leg: 1 pt
🔹Collateral superficial veins (non-varicose): 1 pt
🔹Previously documented DVT: 1 pt
🔹Alternative diagnosis* to DVT as likely or more likely: MINUS 2 points
*Alternative Dx such as:
- Cellulitis
- Superficial phlebitis
- Post-thrombotic syndrome
- Chronic venous insufficiency
- Muscle strain/tear
- Dependent oedema in paralysed limb
- Oedema due to liver cirrhosis/CHF
- External venous obstruction (eg compression by tumour)
- Pseudoaneurysm
- Haematoma
🔹Active cancer (treatment ongoing or within previous 6/12 or
palliative): 1 pt
🔹Paralysis, paresis or recent immobilization of lower extremities: 1 pt
🔹Recently bedridden more than 3/7 or major surgery within 4/52: 1 pt
🔹Localized tenderness along the distribution of the deep venous
system: 1 pt
🔹Entire leg swollen: 1 pt
🔹Calf swelling >3 cm than asymptomatic side (measured 10 cm below tibial tuberosity): 1 pt
🔹Pitting odema, greater in the symptomatic leg: 1 pt
🔹Collateral superficial veins (non-varicose): 1 pt
🔹Previously documented DVT: 1 pt
🔹Alternative diagnosis* to DVT as likely or more likely: MINUS 2 points
*Alternative Dx such as:
- Cellulitis
- Superficial phlebitis
- Post-thrombotic syndrome
- Chronic venous insufficiency
- Muscle strain/tear
- Dependent oedema in paralysed limb
- Oedema due to liver cirrhosis/CHF
- External venous obstruction (eg compression by tumour)
- Pseudoaneurysm
- Haematoma
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