BLS Instructor Exam 2025/2026 (Complete Practice
Pack) | 120 Questions & Correct Answers with Detailed
Rationales | Ultimate A+ Study Guide
1. What is the correct first step in the BLS Chain of Survival for out-of-hospital
cardiac arrest?
A. Advanced airway management
B. Early recognition and activation of emergency response
C. Defibrillation
D. Post-cardiac arrest care
Correct Answer: B. Early recognition and activation of emergency response
Rationale: Early activation ensures rapid access to EMS and timely resuscitation.
2. What is the recommended compression rate for adult CPR?
A. 60–80/min
B. 80–90/min
C. 100–120/min
D. 140–160/min
Correct Answer: C. 100–120/min
,Rationale: High-quality CPR requires 100–120 compressions per minute.
3. What is the correct compression-to-ventilation ratio for adult CPR?
A. 15:2
B. 30:2
C. 20:2
D. 10:1
Correct Answer: B. 30:2
Rationale: Standard adult BLS uses 30 compressions followed by 2 breaths.
4. How deep should chest compressions be in adults?
A. 1 inch (2 cm)
B. At least 2 inches (5–6 cm)
C. 3 inches (7–8 cm)
D. 4 inches (10 cm)
Correct Answer: B. At least 2 inches (5–6 cm)
Rationale: Adequate depth ensures effective circulation.
5. What is the correct hand placement for adult chest compressions?
,A. Left side of chest
B. Lower abdomen
C. Center of the chest on the lower half of sternum
D. Upper chest near clavicle
Correct Answer: C. Center of the chest on the lower half of sternum
Rationale: Proper placement maximizes cardiac output.
6. What is the maximum allowable pause in chest compressions?
A. 20 seconds
B. 15 seconds
C. 10 seconds
D. 5 seconds
Correct Answer: C. 10 seconds
Rationale: Minimizing interruptions improves survival.
7. When should an AED be used?
A. Only after 10 minutes of CPR
B. As soon as it is available
, C. Only in hospital settings
D. After advanced airway placement
Correct Answer: B. As soon as it is available
Rationale: Early defibrillation increases survival rates.
8. What is the correct action after delivering a shock with an AED?
A. Check pulse immediately
B. Resume CPR immediately
C. Wait 2 minutes
D. Call family members
Correct Answer: B. Resume CPR immediately
Rationale: CPR should resume without delay.
9. For an unresponsive adult who is not breathing normally, you should first:
A. Check blood pressure
B. Start rescue breathing only
C. Activate emergency response system
D. Give oxygen immediately
Pack) | 120 Questions & Correct Answers with Detailed
Rationales | Ultimate A+ Study Guide
1. What is the correct first step in the BLS Chain of Survival for out-of-hospital
cardiac arrest?
A. Advanced airway management
B. Early recognition and activation of emergency response
C. Defibrillation
D. Post-cardiac arrest care
Correct Answer: B. Early recognition and activation of emergency response
Rationale: Early activation ensures rapid access to EMS and timely resuscitation.
2. What is the recommended compression rate for adult CPR?
A. 60–80/min
B. 80–90/min
C. 100–120/min
D. 140–160/min
Correct Answer: C. 100–120/min
,Rationale: High-quality CPR requires 100–120 compressions per minute.
3. What is the correct compression-to-ventilation ratio for adult CPR?
A. 15:2
B. 30:2
C. 20:2
D. 10:1
Correct Answer: B. 30:2
Rationale: Standard adult BLS uses 30 compressions followed by 2 breaths.
4. How deep should chest compressions be in adults?
A. 1 inch (2 cm)
B. At least 2 inches (5–6 cm)
C. 3 inches (7–8 cm)
D. 4 inches (10 cm)
Correct Answer: B. At least 2 inches (5–6 cm)
Rationale: Adequate depth ensures effective circulation.
5. What is the correct hand placement for adult chest compressions?
,A. Left side of chest
B. Lower abdomen
C. Center of the chest on the lower half of sternum
D. Upper chest near clavicle
Correct Answer: C. Center of the chest on the lower half of sternum
Rationale: Proper placement maximizes cardiac output.
6. What is the maximum allowable pause in chest compressions?
A. 20 seconds
B. 15 seconds
C. 10 seconds
D. 5 seconds
Correct Answer: C. 10 seconds
Rationale: Minimizing interruptions improves survival.
7. When should an AED be used?
A. Only after 10 minutes of CPR
B. As soon as it is available
, C. Only in hospital settings
D. After advanced airway placement
Correct Answer: B. As soon as it is available
Rationale: Early defibrillation increases survival rates.
8. What is the correct action after delivering a shock with an AED?
A. Check pulse immediately
B. Resume CPR immediately
C. Wait 2 minutes
D. Call family members
Correct Answer: B. Resume CPR immediately
Rationale: CPR should resume without delay.
9. For an unresponsive adult who is not breathing normally, you should first:
A. Check blood pressure
B. Start rescue breathing only
C. Activate emergency response system
D. Give oxygen immediately
