TBI TBI Prevention & Safety 1 — Questions and Answers
Question 1: Which age group has the highest incidence of TBI in the United States?
- Middle-aged adults (40-60)
- Young children (0-4) and older adults (75+) (Correct answer)
- Teenagers only
- Adults aged 25-35
Correct answer: Young children (0-4) and older adults (75+)
CDC data shows TBI rates are highest in toddlers (falls) and adults 75+ (falls), reflecting age-specific vulnerability.
Question 2: Falls are the leading cause of TBI in the US. Which fall-prevention intervention is most evidence-based for older adults?
- Avoiding all physical activity
- Multifactorial programs including strength/balance training, home hazard modification, and medication review (Correct answer)
- Prescription of hip protectors alone
- Annual vision screening only
Correct answer: Multifactorial programs including strength/balance training, home hazard modification, and medication review
Comprehensive multifactorial fall-prevention programs addressing multiple risk factors simultaneously show the strongest evidence for reducing fall-related TBI in older adults.
Question 3: Proper helmet use can reduce TBI risk in bicycle accidents by approximately what percentage?
- 10-20%
- 45-88% (Correct answer)
- 25-30%
- Over 95%
Correct answer: 45-88%
Research consistently shows bicycle helmets reduce head injury risk by 45-88% depending on study methodology and injury severity.
Question 4: Which vehicle safety feature has had the greatest population-level impact on reducing TBI from motor vehicle crashes?
- Antilock braking systems
- Airbags combined with seatbelts (Correct answer)
- Rear-view cameras
- Lane departure warnings
Correct answer: Airbags combined with seatbelts
Combined airbag deployment and seatbelt use dramatically reduces head impact forces and TBI incidence in motor vehicle crashes.
Question 5: In sports, which factor MOST increases an athlete's risk for a second concussion?
- Being female
- Returning to play before complete recovery from the first concussion (Correct answer)
- Playing outdoors
- Using older equipment
Correct answer: Returning to play before complete recovery from the first concussion
A still-healing brain is far more vulnerable — returning to play prematurely dramatically raises the risk of repeat concussion and 'second impact syndrome.'
Question 6: Blast-related TBI in military personnel differs from civilian TBI because it often involves which primary injury mechanism?
- High-speed motor vehicle crash
- Pressure wave from explosion causing direct neurotrauma without external head impact (Correct answer)
- Falls from height
- Sports collision
Correct answer: Pressure wave from explosion causing direct neurotrauma without external head impact
Primary blast TBI results from the overpressure wave generated by an explosion transmitting force through the skull to brain tissue.
TBI TBI Prevention & Safety 1
Which age group has the highest incidence of TBI in the United States?