Free CBRN Practice Questions
Five original questions with explanations
These are original educational questions written to exercise CBRN-relevant reasoning. They are not recalled examination items and do not imply access to confidential test content.
Question 1
A patient has severe respiratory distress and altered mental status. Which priority applies first?
- A. Complete routine history
- B. Support airway and breathing while activating emergency resources
- C. Discuss discharge
- D. Delay intervention for imaging
Answer and explanation
B. Support airway and breathing while activating emergency resources Immediate threats to airway and ventilation take priority.
Question 2
Which finding most strongly suggests shock is worsening?
- A. Improving mentation
- B. Falling blood pressure with cool skin and confusion
- C. Normal urine output
- D. Decreasing pain after treatment
Answer and explanation
B. Falling blood pressure with cool skin and confusion Hypotension, poor perfusion, and altered mentation indicate worsening shock.
Question 3
A trauma patient suddenly becomes hypotensive with unilateral absent breath sounds. What complication is most urgent?
- A. Simple rib bruise
- B. Tension pneumothorax
- C. Seasonal allergy
- D. Chronic anemia
Answer and explanation
B. Tension pneumothorax Obstructive shock with unilateral breath-sound loss requires immediate recognition and escalation.
Question 4
During handoff, which information is most important?
- A. Unrelated social details
- B. Current instability, interventions, response, and pending threats
- C. Only the diagnosis
- D. Room decoration
Answer and explanation
B. Current instability, interventions, response, and pending threats A focused handoff communicates active threats, treatments, response, and next actions.
Question 5
Which reassessment best evaluates an intervention?
- A. Repeat the relevant physiologic and clinical findings
- B. Assume it worked
- C. Wait until discharge
- D. Record only the time
Answer and explanation
A. Repeat the relevant physiologic and clinical findings Targeted reassessment establishes whether the intervention changed the patient’s condition.
How to Review
For every miss, identify the domain, explain the controlling principle, and state why each distractor is less appropriate. Then return to the official outline and your content review.