Deep vein thrombosis is seen in all except one:
Prolonged immobilization
Subungual melanoma
Pregnancy
Major surgical operation.
Ans. is 'b' ie Subungual melanoma Risk factors for venous thromboembolism Patient FactorsDisease or surgical procedureAgeTrauma or surgery, especially of pelvis, hip, lower limbObesityMalignancy, especially pelvic, abdominal metastaticVaricose veins /superficial thrombophlebitisHeart failureImmobilityRecent myocardial infractionPregnancyParalysis of lower limb(s)PuerperiumInfectionHigh-dose oestrogen therapyInflammatory bowel diseasePrevious deep vein thrombosis or pulmonary embolismNephrotic syndromeThrombophiliaPolycythaemicaDeficiency of anti-thrombin III, protein C or protein SParaproteinemiaAnti-phospholipidParoxysmal nocturnal hemoglobinuria antibody or lupus anticoagulant Behcet's disease Homocystinemia
Chronic Venous Insufficiency