PREP | 400+ PRACTICE QUESTIONS &
VERIFIED ANSWERS WITH DETAILED
RATIONALES | EMERGENCY RESPONSE, CPR
TECHNIQUES & AED SUCCESS GUIDE
FIRST AID | CPR | AED CERTIFICATION EXAM PREP
400+ PRACTICE QUESTIONS WITH VERIFIED ANSWERS & DETAILED
RATIONALE
EMERGENCY RESPONSE | CPR TECHNIQUES | AED SUCCESS GUIDE
TABLE OF CONTENTS
• SECTION 1: CPR Fundamentals (Q1–Q50)
• SECTION 2: Adult CPR Techniques (Q51–Q100)
• SECTION 3: Child & Infant CPR (Q101–Q150)
• SECTION 4: AED Use & Defibrillation (Q151–Q200)
• SECTION 5: Airway Management (Q201–Q240)
• SECTION 6: First Aid Basics (Q241–Q270)
• SECTION 7: Bleeding & Wound Care (Q271–Q300)
• SECTION 8: Medical Emergencies (Q301–Q340)
• SECTION 9: Environmental & Special Emergencies (Q341–Q370)
• SECTION 10: Pediatric, Special Populations & Scenario-Based (Q371–Q400)
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SECTION 1: CPR FUNDAMENTALS
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Q1. What does CPR stand for?
,A. Cardiac Pulse Restoration B. Cardiopulmonary Resuscitation C. Cardiovascular
Pressure Release D. Chest Pulse Revival E. Cardio Phrenic Respiration
CORRECT ANSWER: B. Cardiopulmonary Resuscitation RATIONALE:
CPR stands for Cardiopulmonary Resuscitation — a lifesaving technique that combines
chest compressions and rescue breaths to maintain circulation and oxygenation when
the heart stops.
Q2. What is the primary purpose of performing CPR?
A. To restart the heart permanently B. To replace emergency medical care C. To
maintain blood flow and oxygen to vital organs until advanced help arrives D. To treat all
types of cardiac conditions E. To eliminate the need for an AED
CORRECT ANSWER: C. To maintain blood flow and oxygen to vital organs
until advanced help arrives RATIONALE: CPR acts as a bridge — it maintains
circulation of oxygenated blood to the brain and other vital organs, buying time until
advanced care (AED, EMS) can restore a normal heart rhythm.
Q3. The chain of survival refers to:
A. A set of CPR chest compression techniques B. A series of steps that maximize
survival from cardiac arrest C. The order of medications given during a cardiac event D.
The hierarchy of responders at an emergency scene E. The sequence of AED shock
delivery
CORRECT ANSWER: B. A series of steps that maximize survival from cardiac
arrest RATIONALE: The Chain of Survival is a sequence of critical actions —
early recognition, activation of EMS, early CPR, rapid defibrillation, advanced care, and
post-resuscitation care — each link increasing the chance of survival.
Q4. Which of the following is the FIRST link in the adult Chain of Survival?
A. Early CPR B. Early defibrillation C. Early recognition and activation of the emergency
response system D. Advanced life support E. Post-cardiac arrest care
CORRECT ANSWER: C. Early recognition and activation of the emergency
response system RATIONALE: Recognizing cardiac arrest and calling 911 (or
,local emergency services) immediately is the first step. Without activating EMS,
subsequent links in the chain are delayed.
Q5. Sudden cardiac arrest (SCA) occurs when:
A. The heart beats too slowly due to aging B. Blood pressure drops suddenly C. The
heart unexpectedly stops beating effectively D. A person faints from dehydration E. The
lungs stop producing oxygen
CORRECT ANSWER: C. The heart unexpectedly stops beating effectively
RATIONALE: SCA is an abrupt loss of heart function caused by an electrical
disturbance disrupting the heart's rhythm, causing it to stop pumping blood to the brain
and body.
Q6. How quickly can brain damage begin after cardiac arrest if CPR is not
initiated?
A. 30 seconds B. 2 minutes C. 4–6 minutes D. 10 minutes E. 15 minutes
CORRECT ANSWER: C. 4–6 minutes RATIONALE: The brain begins to
suffer irreversible damage within 4–6 minutes of oxygen deprivation. This is why
immediate CPR is critical — every second without circulation reduces survival chances.
Q7. What is the recommended compression-to-ventilation ratio for adult CPR with
a single rescuer?
A. 15:1 B. 30:1 C. 30:2 D. 15:2 E. 5:1
CORRECT ANSWER: C. 30:2 RATIONALE: The American Heart Association
(AHA) recommends a 30:2 ratio for adult single-rescuer CPR — 30 chest compressions
followed by 2 rescue breaths. This optimizes perfusion pressure.
Q8. What does the "C-A-B" sequence in CPR stand for?
A. Circulation, Airway, Breathing B. Compressions, Airway, Breathing C. Cardiac,
Airway, Blood pressure D. Compressions, Assessment, Breathing E. Chest, Airway,
Body positioning
, CORRECT ANSWER: B. Compressions, Airway, Breathing RATIONALE:
The AHA updated the sequence from A-B-C to C-A-B (Compressions, Airway,
Breathing) to prioritize chest compressions, which are the most critical component of
resuscitation.
Q9. Before beginning CPR, what should you first check?
A. Check the victim's pulse for 30 seconds B. Check for scene safety, responsiveness,
and call for help C. Immediately begin chest compressions D. Position the AED pads E.
Provide two rescue breaths
CORRECT ANSWER: B. Check for scene safety, responsiveness, and call for
help RATIONALE: Scene safety is always first — never approach an unsafe
scene. Then check for responsiveness (tap and shout), call 911/EMS, and retrieve an
AED before beginning CPR.
Q10. How should you check if an adult is unresponsive?
A. Check for breathing for 60 seconds B. Tap the shoulder firmly and shout "Are you
okay?" C. Check the carotid pulse for 10 seconds D. Listen for breathing sounds near
the mouth E. Pinch the person's arm firmly
CORRECT ANSWER: B. Tap the shoulder firmly and shout "Are you okay?"
RATIONALE: Tapping the shoulder and shouting is the standard method to check
responsiveness. It avoids unnecessary movement of potential spinal injuries while
quickly assessing consciousness.
Q11. If a victim is unresponsive and not breathing normally, you should:
A. Wait for EMS before doing anything B. Begin CPR and send someone to get an AED
C. Perform the Heimlich maneuver D. Give 5 rescue breaths before compressions E.
Check pulse for 60 seconds before starting CPR
CORRECT ANSWER: B. Begin CPR and send someone to get an AED
RATIONALE: An unresponsive, non-breathing adult is assumed to be in cardiac
arrest. Immediately begin CPR (starting with chest compressions) and have someone
retrieve and use an AED as soon as possible.