Conflicting information exists about the effect of vitamin E on prothrombin time. A 55-year-old man taking warfarin and 1200 units of vitamin E daily developed ecchymoses and hematuria ...

Patients were instructed to do two prothrombin time tests using the self-testing ... The clinic nurse adjusted the patient's Coumadin dosage to maintain the value between 1.5 and 2.5. The patient ...

which is the highest period of time where you're going to have thromboembolic events.” This is an attractive potential as NOACs are “a lot easier to use” than warfarin as there’s no need to measure ...