What is warfarin?
Patients may already have had surgery or will be undergoing surgery which may require anticoagulation therapy. The drug which is most commonly used for this is known as warfarin. This is a type of drug that helps to thin the blood and prevent blood clots. Types of surgery where this may be needed include having a mechanical valve replacement and Fontan completion. In some cases, warfarin may also be needed in Kawasaki’s disease.
What is INR?
Whilst your child is on warfarin, their International Normalised Ratio (INR) will need to be calculated. INR is the measurement of how long it takes the blood to clot. This is done through testing the blood which can be done via an INR machine which involves a finger prick or through having a blood test.
How is INR and warfarin managed?
There will be healthcare professionals involved in a patient’s care to help manage warfarin and INR levels. This includes the pharmacists at the warfarin clinic, children’s cardiac nurse specialists and consultants.
For further information on warfarin and INR, please take a look at our warfarin and INR booklet.
Home testing
Following surgery patients may be asked to complete INR testing at home with an INR machine. Training will be provided by nurse specialists. In the video below Arabella shows us how this is done!