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  Clinical Calculators - Wells Score for Probability of DVT (Deep Vein Thrombosis)  
     
 

The Wells score for the probability of DVT (deep vein thrombosis) is a clinical prediction tool that estimates the probability of a patient with a suspected deep vein thrombosis (DVT) actually having a DVT.

You must give information about all nine criteria in order to achieve a Wells score for probability of DVT...

  Paralysis, paresis or recent orthopaedic casting of lower extremity:      
    Yes  
    No  
         
  Recently bedridden (>3 days) or major surgery in the last 4 weeks:      
    Yes  
    No  
         
  Localised tenderness in deep vein system:      
    Yes  
    No  
         
  Swelling of entire leg:      
    Yes  
    No  
         
  Calf swelling >3cm compared with other leg (measured 10cm below tibial tuberosity):      
    Yes  
    No  
         
  Pitting oedema greater in the symptomatic leg:      
    Yes  
    No  
         
  Collateral non varicose superficial veins:      
    Yes  
    No  
         
  Active cancer or cancer treated within 6 months:      
    Yes  
    No  
         
  Alternative diagnosis more likely than DVT (Baker's cyst, cellulitis, muscle damage, superficial venous thrombosis, post phlebitic syndrome, inguinal lymphadenopathy, external venbous compression):      
    Yes  
    No  
         
         
         
     
         

 
 

References

  1. Wells PS, Anderson DR, Bormanis J, et. al. Value of assessment of pretest probability of deep-vein thrombosis in clinical management. Lancet. 1997 Dec 20-27;350(9094):1795-8.
 
   
   
   
 

 

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