TBI Study Guide 2026
Everything you need to pass the TBI exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
TBI exam key facts
- The CBIS Examination has 70 multiple-choice questions of equal value, and each question has one correct answer. Source
- Candidates have two hours to complete the CBIS Examination unless an ADA accommodation has been approved. Source
- Candidates must score 78% or higher on the CBIS Examination to pass and earn certification. Source
- The ACBIS Certified Brain Injury Specialist (CBIS) application costs $325 per person for 1–4 applicants, falling to $250 per person for groups of 5–29 and $225 per person for groups of 30 or more. The fee includes two exam attempts and a one-year subscription to the Journal of Head Trauma Rehabilitation. Source
- The CBIS certificate is valid for one year. Source
📋 TBI Exam Format at a Glance
📚 TBI Topics to Study (24)
✍️ Sample TBI Questions & Answers
1. Which substrate is the brain's primary energy source under normal conditions?
The brain relies mainly on glucose and uses roughly 20% of the body's oxygen despite being about 2% of its weight.
2. The Brain Injury Association of America (BIAA) serves which primary functions for TBI survivors and families?
BIAA is the leading national TBI advocacy organization, providing educational resources, supporting state affiliates, and promoting TBI awareness and policy change.
3. Guardianship for a TBI patient is a legal process that differs from healthcare proxy in which important way?
Full guardianship is a more sweeping court-supervised process that can restrict many civil rights, while a healthcare proxy is a narrower, less restrictive advance directive.
4. Which type of therapy helps TBI patients relearn daily living skills like grooming and dressing?
Occupational therapy (OT) focuses on helping TBI patients regain the skills necessary for daily living and participation in meaningful activities. Occupational therapists assist patients in relearning tasks such as grooming, dressing, bathing, cooking, and managing household chores. They also adapt environments and provide assistive devices to enhance independence and quality of life.
5. Which legal standard is used to determine whether a TBI patient should receive life-sustaining treatment when preferences are unknown?
Surrogate decision-makers first apply substituted judgment (known values and wishes), and if unknown, fall back on the best interests standard.
6. Which sport has implemented the most comprehensive evidence-based concussion management protocols in the US?
The NFL's concussion protocol includes independent neurological consultants, unaffiliated neurotrauma consultants, and standardized sideline assessment tools.
🎯 Free TBI Practice Tests
📖 TBI Guides & Articles
What Practice Test Geeks adds beyond an AI chat for TBI
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length TBI mock exam — 70 questions in 120 minutes with a 80% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed TBI question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable TBI cheat sheet you can print or save as a PDF.
- TBI flashcards built from the same question bank.
- Free TBI practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- biausa.org — Test dates, eligibility, fees, test delivery, exam format, passing score, retake fee, time limit, score validity, renewal · verified Nov 2026
- shop.biausa.org — Late registration · verified Oct 2026