Heart hero ROMAN shows us how he checks his blood using a life-changing device called an INR machine ☝️🩸 Patients with congenital heart disease - of all ages - are sometimes prescribed drugs to help thin the blood and prevent harmful blood clots. Whilst a patient is on this medicine, their ‘INR’ needs to be calculated which is the measurement of how long it takes their blood to clot. Needing to attend hospital and having regular blood tests can be a traumatic experience, and can have a negative