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BLS HIGH-QUALITY CPR FOR ADULTS – PRACTICE EXAM
BASED ON CURRENT AHA BLS GUIDELINES 2026/2027
COMPLETE (150) CURRENT TESTING QUESTIONS AND
CORRECT ANSWERS WITH DETAILED RATIONALES.
BLS
Prepare effectively for the BLS Quiz on High-Quality CPR for Adults with this focused
study resource. It supports review of adult CPR principles, chest compressions,
rescue breathing, AED use, team dynamics, and critical steps in the BLS response
sequence. Use the material to reinforce your knowledge, review key concepts, and
identify areas that may require additional study. This resource is suited for healthcare
professionals, BLS students, first responders, and candidates preparing for BLS
certification assessments.
MULTIPLE CHOICE.
SECTION 1: HIGH-QUALITY CPR COMPONENTS (Questions 1–35)
Question 1:
What is the recommended chest compression rate for high-quality CPR in an
adult?
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
Rationale: The AHA recommends a compression rate of 100–120
compressions per minute for adult CPR. This rate provides adequate coronary
and cerebral perfusion during cardiac arrest.
Question 2:
What is the recommended chest compression depth for an adult victim?
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A) 1–1.5 inches (2.5–4 cm)
B) 1.5–2 inches (4–5 cm)
C) At least 2 inches (5 cm) but no more than 2.4 inches (6 cm)
D) 3 inches (7.5 cm) or deeper
Answer: C
Rationale: High-quality adult CPR requires compressions of at least 2 inches
(5 cm) but not more than 2.4 inches (6 cm) to generate adequate cardiac
output while minimizing the risk of injury.
Question 3:
What is the correct compression-to-ventilation ratio for a single rescuer
performing CPR on an adult?
A) 15:2
B) 30:2
C) 15:1
D) 30:1
Answer: B
Rationale: The AHA recommends 30 compressions followed by 2 ventilations
for adult CPR for a single rescuer. For two-rescuer CPR on an adult, the ratio is
also 30:2.
Question 4:
How often should rescuers switch roles during two-rescuer CPR to prevent
fatigue?
A) Every 1 minute
B) Every 2 minutes
C) Every 5 minutes
D) Only when the AED arrives
Answer: B
Rationale: Rescuers should switch roles every 2 minutes (or sooner if
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fatigued) to maintain high-quality compressions. Rotating during AED analysis
is an effective strategy.
Question 5:
You demonstrate high-quality CPR by keeping interruptions in CPR to less
than how many seconds?
A) 5 seconds
B) 10 seconds
C) 15 seconds
D) 20 seconds
Answer: B
Rationale: High-quality CPR requires minimizing interruptions to less than 10
seconds. This maximizes the chest compression fraction (CCF) and improves
perfusion.
Question 6:
What is the minimum acceptable Chest Compression Fraction (CCF) for high-
quality CPR?
A) 40%
B) 50%
C) 60%
D) 70%
Answer: C
Rationale: A CCF of at least 60% indicates that compressions are being
performed for the majority of the resuscitation effort, reducing interruptions.
Question 7:
After delivering a shock with an AED, what should the team do next?
A) Check for a pulse
B) Give 2 rescue breaths
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C) Immediately resume chest compressions
D) Turn off the AED
Answer: C
Rationale: After a shock is delivered, the team should immediately resume
CPR; they do not need to wait for the AED prompt. Compressions should
continue until the AED prompts for analysis.
Question 8:
Which of the following is an element of high-quality CPR? (Select all that
apply)
A) Starting chest compressions within 10 seconds of recognition of cardiac
arrest
B) Pushing hard and fast
C) Minimizing interruptions
D) Allowing full chest recoil after each compression
Answer: A, B, C, D
Rationale: All are critical components of high-quality CPR. Starting
compressions quickly, pushing hard (≥2 inches) and fast (100–120/min),
minimizing interruptions, and allowing full chest recoil all maximize perfusion.
Question 9:
When performing chest compressions on an adult in bed, which technique
promotes high-quality CPR?
A) Position yourself with your shoulders directly over your hands
B) Keep your arms straight and lock your elbows
C) Place one hand on top of the other and interlace your fingers
D) All of the above
Answer: D
Rationale: Proper technique includes positioning shoulders directly over
hands, keeping arms straight with elbows locked, and interlacing fingers to
compress using a straight down-and-up motion.
BLS HIGH-QUALITY CPR FOR ADULTS – PRACTICE EXAM
BASED ON CURRENT AHA BLS GUIDELINES 2026/2027
COMPLETE (150) CURRENT TESTING QUESTIONS AND
CORRECT ANSWERS WITH DETAILED RATIONALES.
BLS
Prepare effectively for the BLS Quiz on High-Quality CPR for Adults with this focused
study resource. It supports review of adult CPR principles, chest compressions,
rescue breathing, AED use, team dynamics, and critical steps in the BLS response
sequence. Use the material to reinforce your knowledge, review key concepts, and
identify areas that may require additional study. This resource is suited for healthcare
professionals, BLS students, first responders, and candidates preparing for BLS
certification assessments.
MULTIPLE CHOICE.
SECTION 1: HIGH-QUALITY CPR COMPONENTS (Questions 1–35)
Question 1:
What is the recommended chest compression rate for high-quality CPR in an
adult?
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
Rationale: The AHA recommends a compression rate of 100–120
compressions per minute for adult CPR. This rate provides adequate coronary
and cerebral perfusion during cardiac arrest.
Question 2:
What is the recommended chest compression depth for an adult victim?
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A) 1–1.5 inches (2.5–4 cm)
B) 1.5–2 inches (4–5 cm)
C) At least 2 inches (5 cm) but no more than 2.4 inches (6 cm)
D) 3 inches (7.5 cm) or deeper
Answer: C
Rationale: High-quality adult CPR requires compressions of at least 2 inches
(5 cm) but not more than 2.4 inches (6 cm) to generate adequate cardiac
output while minimizing the risk of injury.
Question 3:
What is the correct compression-to-ventilation ratio for a single rescuer
performing CPR on an adult?
A) 15:2
B) 30:2
C) 15:1
D) 30:1
Answer: B
Rationale: The AHA recommends 30 compressions followed by 2 ventilations
for adult CPR for a single rescuer. For two-rescuer CPR on an adult, the ratio is
also 30:2.
Question 4:
How often should rescuers switch roles during two-rescuer CPR to prevent
fatigue?
A) Every 1 minute
B) Every 2 minutes
C) Every 5 minutes
D) Only when the AED arrives
Answer: B
Rationale: Rescuers should switch roles every 2 minutes (or sooner if
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fatigued) to maintain high-quality compressions. Rotating during AED analysis
is an effective strategy.
Question 5:
You demonstrate high-quality CPR by keeping interruptions in CPR to less
than how many seconds?
A) 5 seconds
B) 10 seconds
C) 15 seconds
D) 20 seconds
Answer: B
Rationale: High-quality CPR requires minimizing interruptions to less than 10
seconds. This maximizes the chest compression fraction (CCF) and improves
perfusion.
Question 6:
What is the minimum acceptable Chest Compression Fraction (CCF) for high-
quality CPR?
A) 40%
B) 50%
C) 60%
D) 70%
Answer: C
Rationale: A CCF of at least 60% indicates that compressions are being
performed for the majority of the resuscitation effort, reducing interruptions.
Question 7:
After delivering a shock with an AED, what should the team do next?
A) Check for a pulse
B) Give 2 rescue breaths
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C) Immediately resume chest compressions
D) Turn off the AED
Answer: C
Rationale: After a shock is delivered, the team should immediately resume
CPR; they do not need to wait for the AED prompt. Compressions should
continue until the AED prompts for analysis.
Question 8:
Which of the following is an element of high-quality CPR? (Select all that
apply)
A) Starting chest compressions within 10 seconds of recognition of cardiac
arrest
B) Pushing hard and fast
C) Minimizing interruptions
D) Allowing full chest recoil after each compression
Answer: A, B, C, D
Rationale: All are critical components of high-quality CPR. Starting
compressions quickly, pushing hard (≥2 inches) and fast (100–120/min),
minimizing interruptions, and allowing full chest recoil all maximize perfusion.
Question 9:
When performing chest compressions on an adult in bed, which technique
promotes high-quality CPR?
A) Position yourself with your shoulders directly over your hands
B) Keep your arms straight and lock your elbows
C) Place one hand on top of the other and interlace your fingers
D) All of the above
Answer: D
Rationale: Proper technique includes positioning shoulders directly over
hands, keeping arms straight with elbows locked, and interlacing fingers to
compress using a straight down-and-up motion.
