GCS
secondary injury and pathology
get yo priorities straight
ICP triggers & prevention
complications and clinical signs
100

What is a normal GCS score 

A. 10
B. 12
C. 13
D. 15

Correct Answer: D

Rationale:

  • D (correct): 15 = fully alert and oriented
  • A, B, C: all indicate impaired neurologic function
100

Which statement best describes secondary brain injury?

A. Damage that occurs at the moment of impact
B. Injury caused by direct trauma only
C. Damage that occurs after the initial injury due to swelling and pressure
D. Injury caused only by skull fractures

Correct Answer: C

Rationale:

  • C (correct): Secondary injury = swelling, bleeding, ↑ ICP after initial trauma
  • A: describes primary injury
  • B: ignores swelling/ICP component
  • D: skull fractures are not required for secondary injury
100

Which patient should the nurse see FIRST?

A. Patient with TBI complaining of mild headache
B. Patient with TBI resting comfortably
C. Patient with TBI who is newly confused
D. Patient with TBI asking for water


Correct Answer: C

Rationale:

  • C (correct): Change in LOC = earliest sign of ICP → priority
  • A: headache is expected
  • B: stable
  • D: non-urgent
100

Which action increases ICP?

A. Head midline
B. Elevating HOB
C. Neck flexion
D. Normothermia

Correct Answer: C

Rationale:

  • C (correct): blocks venous drainage → ↑ ICP
  • A, B: reduce ICP
  • D: prevents ICP rise
100

Which finding is most concerning in a TBI patient?

A. Mild headache
B. Slight fatigue
C. Unequal pupils
D. Drowsiness

Correct Answer: C

Rationale:

  • C (correct): unequal pupils = possible herniation
  • A, B, D: expected/less severe
200

a GCS score of 7 indicates what priority?

A. Discharge planning
B. Intubation
C. Physical therapy
D. Nutrition


Correct Answer: B

Rationale:

  • B (correct): GCS <8 = cannot protect airway → intubation
  • A, C, D: not priorities in acute neuro decline
200

Which processes are involved in secondary brain injury?

Select all that apply:

A. Inflammatory response
B. Cytokine release
C. Vasogenic edema
D. Immediate impact injury
E. Breakdown of the blood-brain barrier

Correct Answers: A, B, C, E

Rationale:

  • A, B, C, E: all part of secondary injury cascade
  • D: this is primary injury, not secondary
200

Which patients require IMMEDIATE intervention?

Select all that apply:

A. Patient with unequal pupils
B. Patient with mild dizziness
C. Patient with posturing
D. Patient with improving LOC
E. Patient with repeated vomiting

Correct Answers: A, C, E

Rationale:

  • A: possible herniation
  • C: severe neuro deterioration
  • E: ↑ ICP sign
  • B: mild symptom
  • D: improvement, not priority
200

Which factors increase ICP?

A. Coughing
B. Maintaining neutral head position
C. Elevated CO₂
D. Pain
E. Fever


Correct Answers: A, C, D, E

Rationale:

  • A: increases pressure
  • C: vasodilation → ↑ ICP
  • D: ↑ metabolic demand
  • E: ↑ brain activity
  • B: reduces ICP
200

Which findings indicate worsening neurological status?

A. Posturing
B. Increased alertness
C. Decreased LOC
D. Seizures
E. Stable pupils

Correct Answers: A, C, D

Rationale:

  • A: severe brain injury
  • C: early deterioration
  • D: complication
  • B: improvement
  • E: stability
300

Which findings indicate worsening neurologic status?

Select all that apply:

A. Decreased LOC
B. Unequal pupils
C. Confusion
D. Increased alertness
E. Posturing

Correct Answers: A, B, C, E

Rationale:

  • A: earliest sign
  • B: possible herniation
  • C: neuro deterioration
  • E: severe brain injury
  • D: increased alertness = improvement
300

A patient initially appears stable after a head injury but deteriorates several hours later. What is the MOST likely explanation?

A. Primary injury progression
B. Secondary injury development
C. Resolution of swelling
D. Decreased ICP

Correct Answer: B

Rationale:

  • B (correct): delayed worsening = secondary injury
  • A: primary injury happens immediately
  • C: would improve condition
  • D: decreased ICP would NOT cause deterioration
300

Which action should the nurse take FIRST for a patient with suspected increased ICP?

A. Assess airway
B. Perform full neuro exam
C. Administer pain medication
D. Elevate HOB

Correct Answer: A

Rationale:

  • A (correct): airway ALWAYS first (ABCs)
  • B: important but after airway
  • C: not priority
  • D: helps ICP but not first
300

Why does elevated CO2 increase ICP?

A. Causes vasoconstriction
B. Decreases blood flow
C. Causes vasodilation
D. Reduces brain volume

Correct Answer: C

Rationale:

  • C (correct): vasodilation → ↑ blood volume → ↑ ICP
  • A: opposite
  • B: blood flow increases
  • D: incorrect
300

Which symptom is most associated with subarachnoid hemorrhage?

A. Gradual confusion
B. Lucid interval
C. Sudden severe headache
D. Memory loss

Correct Answer: C

Rationale:

  • C (correct): hallmark sign
  • A: subdural
  • B: epidural
  • D: concussion
400

A patient only responds to painful stimuli and withdraws from it. What level of consciousness is this?

A. Alert
B. Obtunded
C. Stupor
D. Coma


Correct Answer: C

Rationale:

  • C (correct): requires vigorous/painful stimulus
  • A: fully alert
  • B: responds to verbal/gentle stimuli
  • D: no response at all
400

Which findings occur as a result of vasogenic edema?

Select all that apply:

A. Fluid leaking into extracellular space
B. Breakdown of blood-brain barrier
C. Increased intracranial pressure
D. Immediate trauma at impact site
E. Protein-rich fluid accumulation

Correct Answers: A, B, C, E

Rationale:

  • A, B, E: direct mechanisms of vasogenic edema
  • C: consequence → ↑ ICP
  • D: describes primary injury, not edema
400

Which findings indicate the need for immediate provider notification?

A. Decreased LOC
B. Stable vital signs
C. Unequal pupils
D. Slight fatigue
E. Cushing’s triad

Correct Answers: A, C, E

Rationale:

  • A: early deterioration
  • C: possible herniation
  • E: late, life-threatening sign
  • B: stable
  • D: nonspecific
400

Which interventions help PREVENT ICP elevation?

A. Limit stimulation
B. Encourage coughing
C. Maintain normothermia
D. Keep head midline
E. Allow frequent repositioning with neck flexion

Correct Answers: A, C, D

Rationale:

  • A: prevents spikes
  • C: reduces demand
  • D: improves drainage
  • B: increases ICP
  • E: flexion increases ICP
400

Which complications can occur with TBI?

A. Seizures
B. Increased ICP
C. Meningitis
D. Improved cognition
E. Brain herniation


Correct Answers: A, B, C, E

Rationale:

  • A: brain irritation
  • B: swelling/bleeding
  • C: CSF leak risk
  • E: severe ICP
  • D: not a complication
500

Which finding requires IMMEDIATE intervention?

A. Mild headache
B. Slight confusion
C. Unequal pupils
D. Fatigue

Correct Answer: C

Rationale:

  • C (correct): unequal pupils = possible brain herniation → emergency
  • A: common symptom
  • B: concerning but not most urgent
  • D: nonspecific
500

Which sequence best explains the progression of secondary brain injury?

A. Trauma → decreased ICP → improved perfusion → recovery
B. Trauma → cytokine release → edema → increased ICP → decreased oxygen delivery
C. Trauma → vasoconstriction → decreased blood flow → decreased ICP
D. Trauma → immediate cell death → no further changes


Correct Answer: B

Rationale:

  • B (correct): matches your PPT exactly: inflammation → edema → ↑ ICP → ↓ oxygen
  • A: ICP does NOT decrease in injury
  • C: vasodilation (not constriction) occurs with CO₂ ↑
  • D: ignores ongoing damage (secondary injury is progressive)
500

A nurse is caring for multiple patients with TBI. Which patient is PRIORITY?

A. Patient with GCS 15 and mild headache
B. Patient with GCS 13 and stable
C. Patient with GCS 9 who is becoming more lethargic
D. Patient with GCS 14 requesting pain medication

Rationale:

  • C (correct): declining LOC + GCS near intubation level
  • A, D: stable
  • B: stable, not deteriorating
500

Which situation places a TBI patient at greatest risk for worsening ICP?

A. Calm, resting patient
B. Controlled ventilation
C. Elevated CO2 levels
D. Head elevated


Correct Answer: C

Rationale:

  • C (correct): CO2 directly increases ICP
  • A: stable
  • B: helps control ICP
  • D: reduces ICP
500

A patient develops posturing, unequal pupils, and decreasing LOC. What is the nurse’s priority interpretation?

A. Improvement
B. Mild concussion
C. Brain herniation risk
D. Stable condition

Correct Answer: C

Rationale:

  • C (correct): classic signs of herniation
  • A, D: incorrect — patient worsening
  • B: concussion is mild
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