CBIS CERTIFIED BRAIN INJURY SPECIALIST EXAM |Practice Exam — 250 MCQs Questions &Answers with rationales | latest update

CBIS CERTIFIED BRAIN INJURY SPECIALIST EXAM
|Practice Exam — 250 MCQs Questions
&Answers with rationales | latest update

1. What does CBIS stand for in the context of brain injury rehabilitation?

 A) Certified Brain Injury Supervisor
 B) Certified Brain Injury Specialist (correct answer)
 C) Certified Brain Injury Surgeon
 D) Certified Brain Injury Scientist

Rationale: CBIS stands for Certified Brain Injury Specialist — a credential
awarded by the Brain Injury Association of America (BIAA) to professionals
who demonstrate knowledge and competency in brain injury rehabilitation.



2. Which organization administers the CBIS certification exam?

 A) American Brain Tumor Association
 B) Brain Injury Association of America (BIAA) (correct answer)
 C) National Rehabilitation Association
 D) American Academy of Neurology

Rationale: The Brain Injury Association of America (BIAA) developed and
administers the CBIS certification program through its Academy of Certified
Brain Injury Specialists (ACBIS) to establish professional standards in brain
injury care.



3. What is the most common cause of traumatic brain injury (TBI) in the United
States?

 A) Motor vehicle accidents
 B) Falls (correct answer)
 C) Sports injuries

,  D) Assaults

Rationale: Falls are the leading cause of TBI in the United States, accounting
for approximately 48% of all TBI-related emergency department visits,
hospitalizations, and deaths — particularly affecting young children and
adults over 65.



4. What is the definition of a traumatic brain injury (TBI)?

 A) Any injury to the skull regardless of brain involvement
 B) An alteration in brain function or pathology caused by an external force
(correct answer)
 C) Only injuries causing loss of consciousness
 D) Brain damage caused exclusively by penetrating wounds

Rationale: TBI is defined as an alteration in brain function or pathology
caused by an external force — including bumps, blows, jolts, or penetrating
injuries; it does not require loss of consciousness for diagnosis.



5. Which scale is most commonly used to assess the initial severity of traumatic
brain injury?

 A) Rancho Los Amigos Scale
 B) Glasgow Coma Scale (GCS) (correct answer)
 C) Functional Independence Measure (FIM)
 D) Disability Rating Scale

Rationale: The Glasgow Coma Scale (GCS) measures eye opening (1–4),
verbal response (1–5), and motor response (1–6) to assess consciousness and
TBI severity; scores 13–15 = mild, 9–12 = moderate, ≤8 = severe TBI.



6. What GCS score range indicates a severe traumatic brain injury?

 A) 13–15
 B) 9–12
 C) 3–8 (correct answer)

,  D) 1–5

Rationale: A GCS score of 3–8 indicates severe TBI; at ≤8, patients typically
cannot protect their airway and require intubation; the minimum GCS score
is 3 (no response in all categories).



7. What is a "mild traumatic brain injury" (mTBI)?

 A) A TBI that does not require any medical treatment
 B) A TBI with GCS 13–15, loss of consciousness <30 minutes, post-
traumatic amnesia <24 hours, and no abnormality on standard neuroimaging
(correct answer)
 C) A TBI that only affects cognitive function
 D) A TBI affecting only the frontal lobe

Rationale: mTBI criteria (WHO): GCS 13–15 after the injury, loss of
consciousness ≤30 minutes, post-traumatic amnesia ≤24 hours, and no
abnormality on standard CT/MRI; mTBI accounts for approximately 75% of
all TBIs.



8. What is "post-traumatic amnesia" (PTA)?

 A) Memory loss occurring before the injury
 B) The period of confusion and disorientation following TBI during which
new memories cannot be formed (correct answer)
 C) Long-term memory loss from TBI
 D) Amnesia specifically affecting procedural memory

Rationale: PTA is the period after TBI during which the patient cannot form
continuous new memories — characterized by disorientation to time, place,
person, and inability to store ongoing events; PTA duration is a strong
predictor of TBI outcome.



9. What is the duration of PTA that indicates a severe TBI?

 A) Less than 1 hour

,  B) 1–24 hours
 C) Greater than 7 days (correct answer)
 D) 1–7 days

Rationale: PTA duration as a severity indicator: <5 minutes = very mild; 5
min–1 hour = mild; 1–24 hours = moderate; 1–7 days = severe; >7 days = very
severe TBI — PTA duration is one of the strongest predictors of long-term
functional outcome.



10. What is "retrograde amnesia" in TBI?

 A) Inability to form new memories after the injury
 B) Loss of memory for events occurring before the injury (correct answer)
 C) Confusion during the acute phase of TBI
 D) Memory loss for the traumatic event itself only

Rationale: Retrograde amnesia is loss of memory for events that occurred
before the TBI; it typically involves a period of time immediately before the
injury, and may shrink over time as the person recovers.



11. What is a "diffuse axonal injury" (DAI)?

 A) A focal injury to one specific brain region
 B) Widespread shearing and stretching of axonal fibers caused by rotational
acceleration-deceleration forces (correct answer)
 C) A localized hemorrhage in the brain stem
 D) Damage limited to the corpus callosum only

Rationale: DAI results from rapid acceleration-deceleration and rotational
forces that cause shearing of axons throughout the white matter; it is the most
common and devastating pathology in severe TBI, often causing prolonged
unconsciousness and disability.



12. What is a "contusion" in the context of traumatic brain injury?

 A) A bruise of the skull