BLS Test Questions and Answers AHA Latest
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Part I: High-Quality CPR & Chain of Survival (Questions 1-13)
Q1: You are teaching a BLS course and a student asks you to list
the components of high-quality CPR. According to current AHA
guidelines, which combination of elements defines high-quality
chest compressions?
A. Compressions at a rate of 60-80 per minute, depth of 1 inch,
allowing full chest recoil, and minimizing interruptions to less
than 10 seconds
B. Compressions at a rate of 100-120 per minute, depth of at
least 2 inches but not more than 2.4 inches, allowing complete
chest recoil between compressions, and minimizing
interruptions in compressions
C. Compressions at a rate of 120-140 per minute, depth of 3
inches, continuous compressions without any pauses, and
performing rescue breaths after every 10 compressions
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D. Compressions at a rate of 80-100 per minute, depth of 1.5
inches, partial chest recoil to maintain pressure, and interrupting
every minute to check for a pulse
Correct Answer: B
Rationale: The best answer is B because the AHA has been very
specific about what makes CPR "high quality"—you need to
push hard (at least 2 inches for adults), push fast (between 100
and 120 beats per minute—think of the song "Stayin' Alive"), let
the chest come all the way back up between compressions so the
heart can refill, and keep those interruptions as short as possible.
The other options either have rates that are too slow or too fast,
depths that are way off, or suggest practices like never pausing
or checking pulse too often that would actually hurt your
patient's chances.
Q2: The adult Chain of Survival is a critical concept in BLS
education. In its current form, how many links does the adult
Chain of Survival contain, and what is the FIRST link?
A. 5 links; first link is Early Recognition and Activation of
Emergency Response
B. 4 links; first link is Immediate High-Quality CPR
C. 6 links; first link is Prevention of Cardiac Arrest
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D. 5 links; first link is Early Access to 911
Correct Answer: A
Rationale: This choice is correct because the current adult Chain
of Survival has five distinct links, and it all starts with
recognizing that something is wrong and calling for help right
away—because if nobody recognizes the emergency or calls
911, none of the other links (CPR, defibrillation, advanced care,
post-cardiac arrest care) can happen. The Chain of Survival is
only as strong as its first link, which is why we teach people to
recognize unresponsiveness and abnormal breathing
immediately and activate the emergency response system
without delay.
Q3: You arrive on scene and find an adult lying motionless on
the ground. The person is unresponsive and when you look at
their breathing, you see they are taking occasional gasping
breaths with long pauses between them. How should you
characterize this breathing pattern?
A. Normal breathing indicating the person is recovering from a
fainting spell
B. Agonal breathing—a sign of cardiac arrest that is inadequate
and should be treated as a no-breathing situation
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C. Cheyne-Stokes breathing, which indicates increased
intracranial pressure and requires immediate stroke protocol
D. Hyperventilation due to panic or anxiety, requiring calm
reassurance only
Correct Answer: B
Rationale: The best answer is B because those irregular,
gasping, sporadic breaths are called agonal respirations, and
they're actually a pretty common sign in the early stages of
cardiac arrest—the brain stem is still flickering but it's not
producing real, effective breathing. This trips up a lot of people
because they think "well, they're breathing, so they must be
okay," but agonal breaths are not adequate to sustain life. If you
see this pattern in an unresponsive person, you treat it exactly
like they're not breathing at all and start CPR immediately.
Q4: Why is allowing complete chest recoil between
compressions so important during CPR?
A. It gives the rescuer a brief rest period to reduce fatigue during
prolonged resuscitation efforts
B. It creates a negative pressure in the chest that helps draw
blood back into the heart, improving circulation