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Those at minor risk |
Those at moderate risk |
Those at substantial risk |
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Aged over 40 |
Recent heart disease |
Previous or current DVT |
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Very tall, very short or obese |
Pregnant or on any hormone medication, particularly the contraceptive pill and HRT |
Known clotting tendency |
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Previous or current leg swelling from any cause |
Recent major leg injury or leg surgery |
Recent major surgery or stroke |
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Recent minor leg injury or minor body surgery |
Family history of DVT |
Current malignant disease or chemotherapy paralysed lower limb(s) |
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Extensive vericose veins |
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