<prompt> Anticoagulant of choice for prophylaxis of venous thromboembolism in patient with cancer surgery is:-Heparin sulfateProtamine sulfateLow molecular weight heparinWarfarin  <response>: Venous Thromboembolism- precipitating factor -estrogen in females PREVENTION OF Venous Thromboembolism AMONG HOSPITALIZED PATIENTS Condition Prophylaxis High risk non - ohopedic surgery Unfractionated heparin Low molecular weight heparin LMWH Cancer surgeryassociated thromboembolism LMWH Major ohopedic surgery Warfarin LMWH Aspirin Factor Xa inhibitors Apixaban Dabigatran Medically ill patients during hospitalization Unfractionated heparin LMWH Medically ill patients after hospitalization Betrixaban 