Researchers at the University of Geneva, in Switzerland, are now able to diagnose mild traumatic brain injury using a drop of blood. The blood test measures certain proteins that are released into the blood by damaged brain cells after and injury. If the test is positive, the patient will then be sent to a hospital for a CT scan to confirm diagnosis, but if negative they can go home safely. The team hopes the test will not only reduce patient load to hospitals but prevent unnecessary costly diagnostic tests for the patient. Learn more about the blood test that diagnosis mild traumatic brain injury at University of Geneva.