A 28 year old woman who has had a previous pulmonary embolism in pregnancy wishes to discuss contraception. She has menorrhagia but is otherwise well. What is the SINGLE most suitable contraceptive method for this patient?

The key is C. Levonorgestrel Intra-Uterine System. [The woman has a history of thromboembolic disease, which essentially contraindicates COCP. LNG-IUS (Mirena) is the hormone releasing device that is most suitable in this patient with thrombophilia and menorrhagia.