The Food and Drug Administration approved in mid-February a new blood test to evaluate mild Traumatic Brain Injury, also known as a concussion.

The FDA said it will lessen the need for CT scans, and thus prevent radiation exposure on patients.

The blood test evaluates two separate proteins that are released from the brain to the blood within 12 hours of the trauma. This blood test may be especially important for soldiers because it will help medics check out injured troops in remote locations, according to the Military Times.