Basic Life Support (BLS) New Exam 2025 – Version A |
American Heart Association (AHA) | Real Questions with
Verified Answers & Rationales | Full Practice &
Certification Prep
Overview:
Real Exam reflecting current AHA 2025 guidelines.
multiple-choice questions covering adult, child, and infant CPR, AED use, choking, and emergency
response.
Answers in bold with detailed rationales for each question.
Ideal for healthcare providers, students, or anyone preparing for BLS certification.
Instant PDF-ready format for study, practice, or classroom use.
1. What is the first action a rescuer should take when arriving at the scene of an
unresponsive adult?
A. Begin chest compressions immediately
B. Ensure the scene is safe, then check responsiveness
C. Deliver rescue breaths immediately
D. Call EMS only
Rationale: Scene safety is the first priority to protect both rescuer and patient.
2. During CPR, what is the correct hand position for a child?
A. Both hands always
B. One or two hands depending on size
C. Two fingers only
D. Palm and elbow
Rationale: Hand placement is adjusted based on child size to achieve proper
compression depth.
,3. Which is true regarding pediatric cardiac arrest?
A. Mostly caused by heart attack
B. Often caused by respiratory failure or shock
C. Same as adult causes
D. Rarely requires CPR
Rationale: Pediatric arrests are commonly secondary to hypoxia, requiring early
ventilation.
4. How long should a rescuer check for pulse in an adult?
A. 5 seconds
B. 15 seconds
C. No more than 10 seconds
D. 20 seconds
Rationale: Pulse checks should be quick to avoid delays in compressions.
5. When using an AED, what is the correct sequence?
A. Shock → Attach pads → Analyze rhythm
B. Attach pads → Turn on AED → Follow prompts
C. Call EMS → Shock immediately
D. Start CPR → Skip AED
Rationale: Following AED prompts ensures safe and effective defibrillation.
6. What is the recommended rate of compressions per minute for infants?
A. 80–100
B. 90–110
C. 100–120
D. 120–140
Rationale: The compression rate is the same as for adults and children: 100–
120/min.
, 7. How should an unresponsive adult’s airway be opened if spinal injury is
suspected?
A. Head-tilt, chin-lift
B. Hyperextend neck
C. Jaw-thrust without head tilt
D. Finger sweep only
Rationale: Jaw-thrust opens the airway while minimizing spinal movement.
8. How can a rescuer confirm that rescue breaths are effective?
A. Pulse is present
B. Skin turns pink
C. Chest visibly rises
D. Patient moves
Rationale: Chest rise indicates air is entering the lungs.
9. For a choking adult who becomes unresponsive, the next step is:
A. Continue abdominal thrusts
B. Lower to the ground and begin CPR
C. Give back blows only
D. Call EMS and wait
Rationale: CPR helps dislodge the obstruction while maintaining circulation.
10. During two-rescuer infant CPR, what is the compression-to-ventilation ratio?
A. 30:2
B. 15:2
C. 20:2
D. 10:1
American Heart Association (AHA) | Real Questions with
Verified Answers & Rationales | Full Practice &
Certification Prep
Overview:
Real Exam reflecting current AHA 2025 guidelines.
multiple-choice questions covering adult, child, and infant CPR, AED use, choking, and emergency
response.
Answers in bold with detailed rationales for each question.
Ideal for healthcare providers, students, or anyone preparing for BLS certification.
Instant PDF-ready format for study, practice, or classroom use.
1. What is the first action a rescuer should take when arriving at the scene of an
unresponsive adult?
A. Begin chest compressions immediately
B. Ensure the scene is safe, then check responsiveness
C. Deliver rescue breaths immediately
D. Call EMS only
Rationale: Scene safety is the first priority to protect both rescuer and patient.
2. During CPR, what is the correct hand position for a child?
A. Both hands always
B. One or two hands depending on size
C. Two fingers only
D. Palm and elbow
Rationale: Hand placement is adjusted based on child size to achieve proper
compression depth.
,3. Which is true regarding pediatric cardiac arrest?
A. Mostly caused by heart attack
B. Often caused by respiratory failure or shock
C. Same as adult causes
D. Rarely requires CPR
Rationale: Pediatric arrests are commonly secondary to hypoxia, requiring early
ventilation.
4. How long should a rescuer check for pulse in an adult?
A. 5 seconds
B. 15 seconds
C. No more than 10 seconds
D. 20 seconds
Rationale: Pulse checks should be quick to avoid delays in compressions.
5. When using an AED, what is the correct sequence?
A. Shock → Attach pads → Analyze rhythm
B. Attach pads → Turn on AED → Follow prompts
C. Call EMS → Shock immediately
D. Start CPR → Skip AED
Rationale: Following AED prompts ensures safe and effective defibrillation.
6. What is the recommended rate of compressions per minute for infants?
A. 80–100
B. 90–110
C. 100–120
D. 120–140
Rationale: The compression rate is the same as for adults and children: 100–
120/min.
, 7. How should an unresponsive adult’s airway be opened if spinal injury is
suspected?
A. Head-tilt, chin-lift
B. Hyperextend neck
C. Jaw-thrust without head tilt
D. Finger sweep only
Rationale: Jaw-thrust opens the airway while minimizing spinal movement.
8. How can a rescuer confirm that rescue breaths are effective?
A. Pulse is present
B. Skin turns pink
C. Chest visibly rises
D. Patient moves
Rationale: Chest rise indicates air is entering the lungs.
9. For a choking adult who becomes unresponsive, the next step is:
A. Continue abdominal thrusts
B. Lower to the ground and begin CPR
C. Give back blows only
D. Call EMS and wait
Rationale: CPR helps dislodge the obstruction while maintaining circulation.
10. During two-rescuer infant CPR, what is the compression-to-ventilation ratio?
A. 30:2
B. 15:2
C. 20:2
D. 10:1
