Afib Photo (image) Intermountain Medical Center Share Print E-Mail Caption Combining two independent, scientifically-proven risk measurements allows physicians to better predict an atrial fibrillation patient's risk of stroke or death. The tools also help determine the need for blood thinners in treatment, according to new research. Credit Intermountain Medical Center Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.