International blood pressure guidelines advise health professionals to measure blood pressure in both arms when assessing cardiovascular risk. But this is one advice that is widely ignored by health professionals around the globe. According to a new study this could lead to fatal complications that can be easily prevented if the guidelines are followed. According to researchers of this study checking one arm and then the other with a routinely used blood pressure monitor is cheap and can be carried out in any healthcare setting. It does not require any additional or expensive equipment. Whilst international guidelines currently recommend that