Key result
Rivaroxaban can reach therapeutic levels despite a normal prothrombin time.
Design
Other
Level 5 haematology data; leaves open whether findings warrant prospective validation before practice consideration.
The British Journal of Haematology publishes original research papers in clinical, laboratory and experimental haematology. The Journal also features annotations, reviews, short reports, images in haematology and Letters to the Editor.
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Veen et al. (2012) studied this question. Therapeutic levels of rivaroxaban can be present in patients despite a normal prothrombin time.
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