Surgery Which of the following markers has significant association with poor prognosis in traumatic brain injury? A S-100b Protein B b-Amyloid precursor protein C Increased CSF levels of three neurofilament H D Calpain-derived a-spectrin fragment 💡 Explanation Which of the following markers has significant association with poor prognosis in traumatic brain injury? ✓ Correct Answer: A. S-100b Protein