http://footballscoop.com/news/fda-approves-blood-test-detect-concussions/
Will give concussion protocol another scientific method.
The test works by measuring the levels of proteins, known as UCH-L1, and GFAP, that are released from the brain into blood and measured within 12 hours of the head injury. Levels of these blood proteins can help predict which patients may have intracranial lesions visible by a CT scan, and which won’t. In a statement announcing the approval, the FDA said that the brain trauma indicator was able to predict the presence of intracranial lesions on a CT scan 97.5 percent of the time, and those who did not have such lesions 99.6% of the time.