Dallas Law Firm Blog

TBI Blood Tests Promising, but Limited

A first-of-its-kind blood test recently won FDA approval to evaluate patients who had suffered a mild traumatic brain injury (TBI). National headlines dubbed the new biomarker test a ‘concussion test.’ However, biomarker experts recently noted in a Journal of the American Medical Association article there are certain misconceptions about the new test that need to be clarified.

The new biomarker test is used to rule out the need for a CT scan within 12 hours after the suspected mild TBI. The test measures the levels of two proteins – glial fibrillary acidic protein and ubiquitin C-terminal hydrolase L1 – that may be seen in peripheral blood in about an hour after a mild brain injury. A positive test result suggests a higher risk for a more serious brain injury that may be detectable with a CT scan. A negative result would indicate a lower risk of serious brain injury. However, the test will not specifically diagnose a concussion.

Experts say a positive biomarker test result would suggest what some call a complicated mild traumatic brain injury. It resembles a concussion somewhat, but there is some bruising or bleeding in the brain that could be detected on a CT scan.

Overall, this test can be useful to diagnose some types of mild brain injury, but more work needs to be done before it can be used to diagnose a broader range of brain injuries. The current biomarker test is limited in use at this time.

Why The TBI Blood Test Matters

Each year, up to 1.4 million Americans suffer brain injuries, according to the CDC. Brain injuries are often caused by car accidents, falls and sports activities. Many of these accidents result in serious brain injury, or even death. Because these injuries are so serious, TBIs often result in personal injury lawsuits when another party’s negligence led to the injury.

Proving Negligence in a Brain Injury Case

To succeed in a brain injury lawsuit based upon negligence, the plaintiff must show the following:

  • The defendant was required under the law to show care.
  • The defendant failed to exhibit reasonable care to the plaintiff.
  • The action or inaction of the defendant caused the injuries of the plaintiff.
  • The plaintiff had injuries and losses that can be measured under the law.

Of course, proving that a traumatic brain injury happened, and linking that to the conduct of the defendant, requires the skills of an experienced personal injury attorney. Brain injuries are complex and often are harder to diagnose than other injuries. So, gathering as much medical evidence as possible about the brain injury will help you to prove your case in court.

Suffered a TBI in an Accident? Talk to a Dallas Personal Injury Attorney Now

A traumatic brain injury can cause permanent injury that affects all aspects of your life. In the worst cases, a TBI can lead to permanent disability or death. If you or a loved one suffered a TBI because of the negligence of another party, talk to Guajardo & Marks today for a free case review. You may be entitled to compensation for your injuries.