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![]() ![]() Bleeding after a cut that can take a little longer to stop.Bleeding gums (consider using a softer toothbrush).Nosebleeds that last longer than 5 to 10 minutes or frequent nose bleeds (see section on management).Warfarin and target INRĭo not stop giving warfarin, but contact your Anticoagulation Team to discuss. The higher the number, the longer it takes the blood to clot. A normal INR (without warfarin) is reflected as 1. ![]() The blood sample used to measure the effect of warfarin is called the INR (International Normalised Ratio). The only way to test how the treatment is working is by taking a blood sample and seeing how long it takes the blood to clot. All this needs to be taken into account when deciding on the dose of warfarin. This means that a change in dose will not be reflected in the blood test until this time. The effects of warfarin can last quite a long time in the body but it takes about two to four days to see these effects. Vitamin K is naturally present in food and milk.Įverybody reacts differently to warfarin so the dose must be worked out each time for every patient. It is a ’Vitamin K antagonist‘, which means it prevents a group of clotting proteins (which need Vitamin K to make them active) from doing their job fully. Warfarin works by slowing down the blood clotting process. Staying safe at GOSH and outside the hospitalĬoming to GOSH for a day or inpatient admissionĬoming to GOSH for an outpatient appointment Our new visiting guideline after COVID-19 ![]()
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