BLS Instructor Exam Actual Exam 2026/2027 |
Complete Exam-Style Questions with Detailed
Rationales | 100% Verified | Pass Guaranteed – A+
Graded
**BLS Science and Current Guidelines**
Q1: According to the latest AHA guidelines, what is the recommended compression rate for
high-quality CPR in adults, children, and infants?
A. 80 to 100 compressions per minute
B. 100 to 120 compressions per minute [CORRECT]
C. 120 to 140 compressions per minute
D. At least 150 compressions per minute
Correct Answer: B
Rationale: This choice is correct because the AHA explicitly recommends a compression rate
of 100 to 120 per minute to ensure adequate blood flow while allowing for complete chest
recoil and minimizing rescuer fatigue.
Q2: You are leading a resuscitation attempt with a team of four healthcare providers. The
compressor is showing signs of fatigue, but the current 2-minute cycle is not yet complete.
What is the best action to take?
A. Wait until the AED prompts a rhythm check before switching compressors to maintain
continuity.
B. Instruct the compressor to slow their rate to 80 per minute to conserve energy.
C. Proactively switch the compressor at the 2-minute mark, or sooner if fatigue is visibly
degrading compression quality. [CORRECT]
D. Have a second rescuer place their hands over the current compressor’s hands to assist
with depth.
Correct Answer: C
Rationale: The best answer is C because high-quality CPR requires minimizing fatigue-related
degradation in compression depth and rate, making proactive switching at 2-minute
intervals (or sooner if needed) a core team dynamic principle.
Q3: Review the following CPR quality feedback data from a resuscitation attempt on an
adult patient:
- Rate: 110 compressions/min
- Depth: 4.0 cm (1.5 inches)
- Recoil: Complete
- Interruptions: 8 seconds
Based on current AHA guidelines, which element requires immediate corrective feedback?
A. The compression rate is too slow and needs to be increased.
,B. The compression depth is insufficient and must be increased to at least 5 cm (2 inches).
[CORRECT]
C. The chest recoil is incomplete and the rescuer must lean on the chest.
D. The interruptions are too long and must be reduced to under 5 seconds.
Correct Answer: B
Rationale: This choice is correct because adult compressions must be at least 5 cm (2 inches)
deep to generate sufficient blood flow, and 4.0 cm is inadequate, even though the rate,
recoil, and interruption times are currently acceptable.
Q4: What is the primary physiological reason for emphasizing complete chest recoil during
CPR?
A. It prevents rib fractures in elderly patients.
B. It allows the heart to refill with blood (venous return) between compressions. [CORRECT]
C. It ensures the rescuer maintains the correct hand position on the sternum.
D. It reduces the risk of gastric inflation during rescue breaths.
Correct Answer: B
Rationale: This aligns with the principle that complete chest recoil creates negative
intrathoracic pressure, which is essential for drawing blood back into the heart to be
pumped during the next compression.
Q5: You are responding to a cardiac arrest in a public restroom, and the floor is visibly wet.
An AED is immediately available. What is the correct sequence of actions?
A. Do not use the AED until the area is completely dry, and perform CPR only.
B. Quickly move the patient to a dry area, wipe the chest dry, and apply the AED pads.
[CORRECT]
C. Apply the AED pads directly over the wet skin to avoid delaying the shock.
D. Have a rescuer stand on a dry towel while delivering compressions, but delay AED use.
Correct Answer: B
Rationale: The best answer is B because water conducts electricity, so the patient must be
moved from standing water and the chest must be wiped dry before AED pad placement to
ensure safe and effective defibrillation.
Q6: During a single-rescuer adult CPR scenario, what is the correct compression-to-
ventilation ratio?
A. 15:2
B. 30:2 [CORRECT]
C. 5:1
D. Continuous compressions with 1 breath every 6 seconds
Correct Answer: B
Rationale: This choice is correct because the AHA standard for a single rescuer performing
CPR on an adult, child, or infant is a 30:2 ratio to maximize compressions while still providing
essential oxygenation.
Q7: In the adult In-Hospital Cardiac Arrest Chain of Survival, what is the first link?
A. Early recognition and prevention of arrest. [CORRECT]
B. Immediate high-quality CPR.
C. Rapid defibrillation.
, D. Advanced life support and post-arrest care.
Correct Answer: A
Rationale: This matches the principle that in a monitored healthcare setting, the first and
most critical link is recognizing clinical deterioration early to prevent the arrest from
happening in the first place.
Q8: A family member calls 911 reporting their father is "not breathing right" and making
strange snoring sounds. You arrive and find the patient unresponsive with these sounds.
What is your immediate assessment?
A. Assume the patient is breathing adequately and place them in the recovery position.
B. Recognize this as agonal gasps, which is not normal breathing, and immediately begin
CPR. [CORRECT]
C. Wait 30 seconds to see if the breathing pattern normalizes before taking action.
D. Administer rescue breaths only, as the heart is likely still beating effectively.
Correct Answer: B
Rationale: The best answer is B because agonal gasps are a common sign of cardiac arrest
and should never be mistaken for normal, effective breathing; immediate initiation of CPR is
required.
Q9: How does the compression-to-ventilation ratio change for a child when a second
rescuer arrives on the scene?
A. It remains 30:2 to maintain consistency.
B. It changes from 30:2 to 15:2 to provide more frequent ventilation for pediatric patients.
[CORRECT]
C. It changes to continuous compressions with asynchronous breaths.
D. It changes to 5:1 to prioritize oxygenation over perfusion.
Correct Answer: B
Rationale: This choice is correct because pediatric arrests are frequently respiratory in
origin, so the AHA recommends a 15:2 ratio for two-rescuer child and infant CPR to deliver
more frequent ventilations.
Q10: When using an AED on an infant, what is the preferred pad placement if pediatric pads
and a dose attenuator are available?
A. Anterior-lateral, just like an adult.
B. Anterior-posterior (one pad on the center of the chest, the other on the center of the
back). [CORRECT]
C. Both pads placed on the anterior chest, side by side.
D. One pad on the left arm and one on the right leg.
Correct Answer: B
Rationale: This aligns with AHA guidelines, which state that anterior-posterior placement is
preferred for infants to prevent the pads from touching, though anterior-lateral is
acceptable if necessary.
Q11: You are performing BLS on a patient who is unresponsive and not breathing normally.
You suspect an opioid overdose. What additional intervention should be integrated into
your BLS response?
A. Withhold rescue breaths to avoid pushing the opioid further into the lungs.
Complete Exam-Style Questions with Detailed
Rationales | 100% Verified | Pass Guaranteed – A+
Graded
**BLS Science and Current Guidelines**
Q1: According to the latest AHA guidelines, what is the recommended compression rate for
high-quality CPR in adults, children, and infants?
A. 80 to 100 compressions per minute
B. 100 to 120 compressions per minute [CORRECT]
C. 120 to 140 compressions per minute
D. At least 150 compressions per minute
Correct Answer: B
Rationale: This choice is correct because the AHA explicitly recommends a compression rate
of 100 to 120 per minute to ensure adequate blood flow while allowing for complete chest
recoil and minimizing rescuer fatigue.
Q2: You are leading a resuscitation attempt with a team of four healthcare providers. The
compressor is showing signs of fatigue, but the current 2-minute cycle is not yet complete.
What is the best action to take?
A. Wait until the AED prompts a rhythm check before switching compressors to maintain
continuity.
B. Instruct the compressor to slow their rate to 80 per minute to conserve energy.
C. Proactively switch the compressor at the 2-minute mark, or sooner if fatigue is visibly
degrading compression quality. [CORRECT]
D. Have a second rescuer place their hands over the current compressor’s hands to assist
with depth.
Correct Answer: C
Rationale: The best answer is C because high-quality CPR requires minimizing fatigue-related
degradation in compression depth and rate, making proactive switching at 2-minute
intervals (or sooner if needed) a core team dynamic principle.
Q3: Review the following CPR quality feedback data from a resuscitation attempt on an
adult patient:
- Rate: 110 compressions/min
- Depth: 4.0 cm (1.5 inches)
- Recoil: Complete
- Interruptions: 8 seconds
Based on current AHA guidelines, which element requires immediate corrective feedback?
A. The compression rate is too slow and needs to be increased.
,B. The compression depth is insufficient and must be increased to at least 5 cm (2 inches).
[CORRECT]
C. The chest recoil is incomplete and the rescuer must lean on the chest.
D. The interruptions are too long and must be reduced to under 5 seconds.
Correct Answer: B
Rationale: This choice is correct because adult compressions must be at least 5 cm (2 inches)
deep to generate sufficient blood flow, and 4.0 cm is inadequate, even though the rate,
recoil, and interruption times are currently acceptable.
Q4: What is the primary physiological reason for emphasizing complete chest recoil during
CPR?
A. It prevents rib fractures in elderly patients.
B. It allows the heart to refill with blood (venous return) between compressions. [CORRECT]
C. It ensures the rescuer maintains the correct hand position on the sternum.
D. It reduces the risk of gastric inflation during rescue breaths.
Correct Answer: B
Rationale: This aligns with the principle that complete chest recoil creates negative
intrathoracic pressure, which is essential for drawing blood back into the heart to be
pumped during the next compression.
Q5: You are responding to a cardiac arrest in a public restroom, and the floor is visibly wet.
An AED is immediately available. What is the correct sequence of actions?
A. Do not use the AED until the area is completely dry, and perform CPR only.
B. Quickly move the patient to a dry area, wipe the chest dry, and apply the AED pads.
[CORRECT]
C. Apply the AED pads directly over the wet skin to avoid delaying the shock.
D. Have a rescuer stand on a dry towel while delivering compressions, but delay AED use.
Correct Answer: B
Rationale: The best answer is B because water conducts electricity, so the patient must be
moved from standing water and the chest must be wiped dry before AED pad placement to
ensure safe and effective defibrillation.
Q6: During a single-rescuer adult CPR scenario, what is the correct compression-to-
ventilation ratio?
A. 15:2
B. 30:2 [CORRECT]
C. 5:1
D. Continuous compressions with 1 breath every 6 seconds
Correct Answer: B
Rationale: This choice is correct because the AHA standard for a single rescuer performing
CPR on an adult, child, or infant is a 30:2 ratio to maximize compressions while still providing
essential oxygenation.
Q7: In the adult In-Hospital Cardiac Arrest Chain of Survival, what is the first link?
A. Early recognition and prevention of arrest. [CORRECT]
B. Immediate high-quality CPR.
C. Rapid defibrillation.
, D. Advanced life support and post-arrest care.
Correct Answer: A
Rationale: This matches the principle that in a monitored healthcare setting, the first and
most critical link is recognizing clinical deterioration early to prevent the arrest from
happening in the first place.
Q8: A family member calls 911 reporting their father is "not breathing right" and making
strange snoring sounds. You arrive and find the patient unresponsive with these sounds.
What is your immediate assessment?
A. Assume the patient is breathing adequately and place them in the recovery position.
B. Recognize this as agonal gasps, which is not normal breathing, and immediately begin
CPR. [CORRECT]
C. Wait 30 seconds to see if the breathing pattern normalizes before taking action.
D. Administer rescue breaths only, as the heart is likely still beating effectively.
Correct Answer: B
Rationale: The best answer is B because agonal gasps are a common sign of cardiac arrest
and should never be mistaken for normal, effective breathing; immediate initiation of CPR is
required.
Q9: How does the compression-to-ventilation ratio change for a child when a second
rescuer arrives on the scene?
A. It remains 30:2 to maintain consistency.
B. It changes from 30:2 to 15:2 to provide more frequent ventilation for pediatric patients.
[CORRECT]
C. It changes to continuous compressions with asynchronous breaths.
D. It changes to 5:1 to prioritize oxygenation over perfusion.
Correct Answer: B
Rationale: This choice is correct because pediatric arrests are frequently respiratory in
origin, so the AHA recommends a 15:2 ratio for two-rescuer child and infant CPR to deliver
more frequent ventilations.
Q10: When using an AED on an infant, what is the preferred pad placement if pediatric pads
and a dose attenuator are available?
A. Anterior-lateral, just like an adult.
B. Anterior-posterior (one pad on the center of the chest, the other on the center of the
back). [CORRECT]
C. Both pads placed on the anterior chest, side by side.
D. One pad on the left arm and one on the right leg.
Correct Answer: B
Rationale: This aligns with AHA guidelines, which state that anterior-posterior placement is
preferred for infants to prevent the pads from touching, though anterior-lateral is
acceptable if necessary.
Q11: You are performing BLS on a patient who is unresponsive and not breathing normally.
You suspect an opioid overdose. What additional intervention should be integrated into
your BLS response?
A. Withhold rescue breaths to avoid pushing the opioid further into the lungs.
