IVC filter for pulmonary embolism – Cardiology MCQ

True regarding inferior vena caval (IVC) filter for prevention of pulmonary embolism:
a) Indicated when anticoagulation is contra indicated
b) Recurrence in spite of anticoagulation
c) Increases risk of leg vein thrombosis
d) All of the above
Correct answer: d) All of the above
In addition to these, a retrievable filter should be used whenever there is only a transient risk factor. Retrieval should be attempted after reversal of the predisposing risk factor.