CBIS CHAPTER 1 QUESTIONS AND ANSWERS | CBIS CHAPTER 1 STUDY GUIDE
2026
Acquired brain injury (ABI) - ANS ✔✔an injury to the brain that is not hereditary, congenital,
degenerative, or induced by birth trauma
Traumatic brain injury (TBI) - ANS ✔✔an alteration in brain function, or other evidence of brain
pathology, caused by an external force
TBI is a contributing factor to what percentage of all injury-related deaths in the US? - ANS ✔✔a
third (30.5%)
What percent of TBIs that occur each year are mild
TBI? - ANS ✔✔75%
How many people are estimated to sustain a TBI yearly? - ANS ✔✔2.5 million people
2,214,000 emergency department visits
(81%)
284,000 hospitalizations (16%)
53,000 deaths (3%)
2026
Acquired brain injury (ABI) - ANS ✔✔an injury to the brain that is not hereditary, congenital,
degenerative, or induced by birth trauma
Traumatic brain injury (TBI) - ANS ✔✔an alteration in brain function, or other evidence of brain
pathology, caused by an external force
TBI is a contributing factor to what percentage of all injury-related deaths in the US? - ANS ✔✔a
third (30.5%)
What percent of TBIs that occur each year are mild
TBI? - ANS ✔✔75%
How many people are estimated to sustain a TBI yearly? - ANS ✔✔2.5 million people
2,214,000 emergency department visits
(81%)
284,000 hospitalizations (16%)
53,000 deaths (3%)
