BLS FINAL EXAM | 2026/20267 ACTUAL EXAM QUESTIONS AND 100%
CORRECT ANSWERS WITH RATIONALES GRADED A+
|BASIC LIFE SUPPORT CERTIFICATION – FINAL ASSESSMENT
LATEST UPDATE
SECTION 1: BLS FUNDAMENTALS (Questions 1-25)
Question 1:
What does the "C-A-B" acronym stand for in BLS?
A) Circulation, Airway, Breathing
B) Chest compressions, Airway, Breathing
C) Compressions, Assessment, Breathing
D) Cardiac, Airway, Breathing
Answer: B) Chest compressions, Airway, Breathing
Rationale: The AHA updated the CPR sequence from A-B-C to C-A-B to emphasize
the importance of chest compressions. C stands for Chest compressions,
A for Airway, B for Breathing.
Question 2:
What is the recommended compression rate for adult CPR?
A) 60-80 compressions per minute
B) 80-100 compressions per minute
C) 100-120 compressions per minute
D) 120-140 compressions per minute
Answer: C) 100-120 compressions per minute
Rationale: The AHA recommends a compression rate of 100-120 compressions
per
minute. Compression depth should be at least 2 inches (5 cm) but not more
than 2.4 inches (6 cm) for adults.
Question 3:
1
,What is the correct compression-to-ventilation ratio for single-rescuer adult
CPR?
A) 15:2
B) 30:2
C) 30:1
D) 15:1
Answer: B) 30:2
Rationale: For single-rescuer adult CPR, the ratio is 30 compressions to 2
ventilations. For two-rescuer adult CPR, it remains 30:2 (for adults).
For children and infants, single-rescuer is 30:2, two-rescuer is 15:2.
Question 4:
What is the recommended compression depth for an adult?
A) At least 1.5 inches
B) At least 2 inches (but no more than 2.4 inches)
C) At least 2.5 inches
D) At least 3 inches
Answer: B) At least 2 inches (but no more than 2.4 inches)
Rationale: Adult compression depth should be at least 2 inches (5 cm) but not
exceed 2.4 inches (6 cm). This ensures adequate blood flow while minimizing
the risk of injury.
Question 5:
How often should rescuers switch roles during CPR?
A) Every 1 minute
B) Every 2 minutes (or 5 cycles of 30:2)
C) Every 5 minutes
D) Only when fatigued
Answer: B) Every 2 minutes (or 5 cycles of 30:2)
Rationale: Rescuers should switch compressors every 2 minutes (approximately
2
,5 cycles of 30:2 for adults) to avoid fatigue and maintain high-quality
compressions. The switch should be done quickly (within 5 seconds).
Question 6:
What is the maximum interruption time for chest compressions?
A) 5 seconds
B) 10 seconds
C) 15 seconds
D) 20 seconds
Answer: B) 10 seconds
Rationale: Minimizing interruptions in chest compressions is critical for
survival. Interruptions should be limited to no more than 10 seconds
(e.g., for rhythm checks, defibrillation, or switching rescuers).
Question 7:
The Chain of Survival for out-of-hospital cardiac arrest includes all of the
following EXCEPT:
A) Activation of emergency response system
B) Early CPR
C) Rapid defibrillation
D) Administering oral medications
Answer: D) Administering oral medications
Rationale: The Chain of Survival includes: 1) Activation of emergency response,
2) Early CPR, 3) Rapid defibrillation, 4) Advanced life support, 5) Integrated
post-cardiac arrest care. Oral medications are not part of the BLS Chain of
Survival.
Question 8:
What is the recommended compression depth for a child (1 year to puberty)?
A) 1 inch
B) 1.5 inches
3
, C) 2 inches (about 5 cm)
D) 2.4 inches
Answer: C) 2 inches (about 5 cm)
Rationale: For children, the compression depth is about 2 inches (5 cm),
which is about one-third of the anterior-posterior chest diameter.
For infants, the depth is about 1.5 inches (4 cm).
Question 9:
Which of the following is a sign of high-quality CPR?
A) Interruptions lasting more than 15 seconds
B) Compression rate of 80 per minute
C) Full chest recoil after each compression
D) Ventilation rate of 20 breaths per minute
Answer: C) Full chest recoil after each compression
Rationale: Full chest recoil allows for maximum venous return to the heart.
High-quality CPR includes: rate 100-120/min, depth at least 2 inches,
full recoil, minimal interruptions (≤10 sec), and 2 breaths per 30
compressions (ratio 30:2).
Question 10:
The correct hand placement for adult chest compressions is:
A) Lower half of the sternum (center of the chest)
B) Upper half of the sternum
C) Left side of the chest
D) Right side of the chest
Answer: A) Lower half of the sternum (center of the chest)
Rationale: Place the heel of one hand on the center of the victim's chest
(the lower half of the sternum) with the other hand on top. This allows
effective compression of the heart.
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CORRECT ANSWERS WITH RATIONALES GRADED A+
|BASIC LIFE SUPPORT CERTIFICATION – FINAL ASSESSMENT
LATEST UPDATE
SECTION 1: BLS FUNDAMENTALS (Questions 1-25)
Question 1:
What does the "C-A-B" acronym stand for in BLS?
A) Circulation, Airway, Breathing
B) Chest compressions, Airway, Breathing
C) Compressions, Assessment, Breathing
D) Cardiac, Airway, Breathing
Answer: B) Chest compressions, Airway, Breathing
Rationale: The AHA updated the CPR sequence from A-B-C to C-A-B to emphasize
the importance of chest compressions. C stands for Chest compressions,
A for Airway, B for Breathing.
Question 2:
What is the recommended compression rate for adult CPR?
A) 60-80 compressions per minute
B) 80-100 compressions per minute
C) 100-120 compressions per minute
D) 120-140 compressions per minute
Answer: C) 100-120 compressions per minute
Rationale: The AHA recommends a compression rate of 100-120 compressions
per
minute. Compression depth should be at least 2 inches (5 cm) but not more
than 2.4 inches (6 cm) for adults.
Question 3:
1
,What is the correct compression-to-ventilation ratio for single-rescuer adult
CPR?
A) 15:2
B) 30:2
C) 30:1
D) 15:1
Answer: B) 30:2
Rationale: For single-rescuer adult CPR, the ratio is 30 compressions to 2
ventilations. For two-rescuer adult CPR, it remains 30:2 (for adults).
For children and infants, single-rescuer is 30:2, two-rescuer is 15:2.
Question 4:
What is the recommended compression depth for an adult?
A) At least 1.5 inches
B) At least 2 inches (but no more than 2.4 inches)
C) At least 2.5 inches
D) At least 3 inches
Answer: B) At least 2 inches (but no more than 2.4 inches)
Rationale: Adult compression depth should be at least 2 inches (5 cm) but not
exceed 2.4 inches (6 cm). This ensures adequate blood flow while minimizing
the risk of injury.
Question 5:
How often should rescuers switch roles during CPR?
A) Every 1 minute
B) Every 2 minutes (or 5 cycles of 30:2)
C) Every 5 minutes
D) Only when fatigued
Answer: B) Every 2 minutes (or 5 cycles of 30:2)
Rationale: Rescuers should switch compressors every 2 minutes (approximately
2
,5 cycles of 30:2 for adults) to avoid fatigue and maintain high-quality
compressions. The switch should be done quickly (within 5 seconds).
Question 6:
What is the maximum interruption time for chest compressions?
A) 5 seconds
B) 10 seconds
C) 15 seconds
D) 20 seconds
Answer: B) 10 seconds
Rationale: Minimizing interruptions in chest compressions is critical for
survival. Interruptions should be limited to no more than 10 seconds
(e.g., for rhythm checks, defibrillation, or switching rescuers).
Question 7:
The Chain of Survival for out-of-hospital cardiac arrest includes all of the
following EXCEPT:
A) Activation of emergency response system
B) Early CPR
C) Rapid defibrillation
D) Administering oral medications
Answer: D) Administering oral medications
Rationale: The Chain of Survival includes: 1) Activation of emergency response,
2) Early CPR, 3) Rapid defibrillation, 4) Advanced life support, 5) Integrated
post-cardiac arrest care. Oral medications are not part of the BLS Chain of
Survival.
Question 8:
What is the recommended compression depth for a child (1 year to puberty)?
A) 1 inch
B) 1.5 inches
3
, C) 2 inches (about 5 cm)
D) 2.4 inches
Answer: C) 2 inches (about 5 cm)
Rationale: For children, the compression depth is about 2 inches (5 cm),
which is about one-third of the anterior-posterior chest diameter.
For infants, the depth is about 1.5 inches (4 cm).
Question 9:
Which of the following is a sign of high-quality CPR?
A) Interruptions lasting more than 15 seconds
B) Compression rate of 80 per minute
C) Full chest recoil after each compression
D) Ventilation rate of 20 breaths per minute
Answer: C) Full chest recoil after each compression
Rationale: Full chest recoil allows for maximum venous return to the heart.
High-quality CPR includes: rate 100-120/min, depth at least 2 inches,
full recoil, minimal interruptions (≤10 sec), and 2 breaths per 30
compressions (ratio 30:2).
Question 10:
The correct hand placement for adult chest compressions is:
A) Lower half of the sternum (center of the chest)
B) Upper half of the sternum
C) Left side of the chest
D) Right side of the chest
Answer: A) Lower half of the sternum (center of the chest)
Rationale: Place the heel of one hand on the center of the victim's chest
(the lower half of the sternum) with the other hand on top. This allows
effective compression of the heart.
4
