BLS CERTIFICATION EXAM – QUESTIONS AND
ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | LATEST EXAM UPDATE
2026/2027
Core Domains
1. High-Quality CPR for Adults, Children, and
Infants
2. The AHA Chain of Survival
3. Use of an Automated External Defibrillator (AED)
4. Ventilations and Barrier Devices
5. Team Dynamics and Multi-Rescuer Coordination
6. Management of Foreign-Body Airway Obstruction
(Choking)
7. Recognition of Life-Threatening Emergencies
8. Opioid-Associated Life-Threatening Emergencies
9. Post-Cardiac Arrest Care Fundamentals
10. Legal and Ethical Considerations in
Resuscitation
Introduction
The Basic Life Support (BLS) Certification Exam is
designed to evaluate the proficiency of healthcare
professionals and emergency responders in
performing life-saving interventions. This
,assessment ensures that candidates possess the
critical knowledge required to recognize cardiac
arrest, activate emergency response systems, and
provide high-quality chest compressions and
ventilations. The exam utilizes a blend of
foundational theory and scenario-based multiple-
choice questions to mirror real-world clinical
environments. By emphasizing rapid decision-
making and the integration of the latest resuscitation
science, this exam validates a provider’s ability to
improve survival outcomes through effective
teamwork and technical skill application.
1. What is the recommended depth of chest
compressions for an adult victim?
A. At least 1 inch
B. At least 2 inches
C. At least 3 inches
D. Exactly 4 inches
🟢 B. At least 2 inches
🔴 Explanation: High-quality CPR for adults
requires a compression depth of at least 2 inches (5
cm) but no more than 2.4 inches (6 cm) to ensure
adequate blood flow to vital organs.
, 2. A 55-year-old male collapses in a hallway.
After ensuring the scene is safe, what is your
next immediate action?
A. Give 2 breaths
B. Check for a pulse
C. Check for responsiveness
D. Start chest compressions
🟢 C. Check for responsiveness
🔴 Explanation: The first step in the BLS sequence
after ensuring scene safety is to check if the victim
is responsive by tapping their shoulders and
shouting.
3. Which of the following is the correct
compression-to-ventilation ratio for a single
rescuer performing CPR on an infant?
A. 15:2
B. 30:1
C. 30:2
D. 15:1
🟢 C. 30:2
🔴 Explanation: For single rescuers of any age
(adult, child, or infant), the compression-to-
ventilation ratio remains 30:2.
, 4. You are performing CPR and the AED arrives.
What is the first step in using the AED?
A. Apply the pads
B. Press the "Shock" button
C. Clear the victim
D. Power on the AED
🟢 D. Power on the AED
🔴 Explanation: The first step in operating an AED
is always to turn it on so that the device can provide
the rescuer with the necessary voice and visual
prompts.
5. How often should rescuers switch roles during
CPR to prevent fatigue?
A. Every 5 minutes
B. Every 2 minutes
C. Every 10 cycles
D. After every shock delivered
🟢 B. Every 2 minutes
🔴 Explanation: Rescuers should switch every 2
minutes (or approximately every 5 cycles of 30:2) to
maintain high-quality compressions and minimize
exhaustion.
ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | LATEST EXAM UPDATE
2026/2027
Core Domains
1. High-Quality CPR for Adults, Children, and
Infants
2. The AHA Chain of Survival
3. Use of an Automated External Defibrillator (AED)
4. Ventilations and Barrier Devices
5. Team Dynamics and Multi-Rescuer Coordination
6. Management of Foreign-Body Airway Obstruction
(Choking)
7. Recognition of Life-Threatening Emergencies
8. Opioid-Associated Life-Threatening Emergencies
9. Post-Cardiac Arrest Care Fundamentals
10. Legal and Ethical Considerations in
Resuscitation
Introduction
The Basic Life Support (BLS) Certification Exam is
designed to evaluate the proficiency of healthcare
professionals and emergency responders in
performing life-saving interventions. This
,assessment ensures that candidates possess the
critical knowledge required to recognize cardiac
arrest, activate emergency response systems, and
provide high-quality chest compressions and
ventilations. The exam utilizes a blend of
foundational theory and scenario-based multiple-
choice questions to mirror real-world clinical
environments. By emphasizing rapid decision-
making and the integration of the latest resuscitation
science, this exam validates a provider’s ability to
improve survival outcomes through effective
teamwork and technical skill application.
1. What is the recommended depth of chest
compressions for an adult victim?
A. At least 1 inch
B. At least 2 inches
C. At least 3 inches
D. Exactly 4 inches
🟢 B. At least 2 inches
🔴 Explanation: High-quality CPR for adults
requires a compression depth of at least 2 inches (5
cm) but no more than 2.4 inches (6 cm) to ensure
adequate blood flow to vital organs.
, 2. A 55-year-old male collapses in a hallway.
After ensuring the scene is safe, what is your
next immediate action?
A. Give 2 breaths
B. Check for a pulse
C. Check for responsiveness
D. Start chest compressions
🟢 C. Check for responsiveness
🔴 Explanation: The first step in the BLS sequence
after ensuring scene safety is to check if the victim
is responsive by tapping their shoulders and
shouting.
3. Which of the following is the correct
compression-to-ventilation ratio for a single
rescuer performing CPR on an infant?
A. 15:2
B. 30:1
C. 30:2
D. 15:1
🟢 C. 30:2
🔴 Explanation: For single rescuers of any age
(adult, child, or infant), the compression-to-
ventilation ratio remains 30:2.
, 4. You are performing CPR and the AED arrives.
What is the first step in using the AED?
A. Apply the pads
B. Press the "Shock" button
C. Clear the victim
D. Power on the AED
🟢 D. Power on the AED
🔴 Explanation: The first step in operating an AED
is always to turn it on so that the device can provide
the rescuer with the necessary voice and visual
prompts.
5. How often should rescuers switch roles during
CPR to prevent fatigue?
A. Every 5 minutes
B. Every 2 minutes
C. Every 10 cycles
D. After every shock delivered
🟢 B. Every 2 minutes
🔴 Explanation: Rescuers should switch every 2
minutes (or approximately every 5 cycles of 30:2) to
maintain high-quality compressions and minimize
exhaustion.
