Medical providers will have a new tool to diagnose concussions since as the U.S. Food and Drug Administration today permitted marketing of the first blood test to evaluate mild traumatic brain injury (mTBI), commonly called a concussion, in adults. The FDA reviewed and authorized for marketing the Banyan Brain Trauma Indicator in fewer than 6 months as part of its Breakthrough Devices Program. The new quick testing option will help reduce the need for CT scans, radiation exposure, for patients.