IVCFs may be used in clinical situations where a person has a high risk of experiencing a pulmonary embolism .
IVCFs may be can not be on anticoagulants due to a high risk of bleeding , or they have active bleeding .
IVCFs may be used in clinical situations where a person has a high risk of experiencing a pulmonary embolism , but can not be on anticoagulants due to a high risk of bleeding , or they have active bleeding .