ACLS VERSION B QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
||UPDATED 2026
Question: What specific action should the team take to minimize the duration of
interruptions in chest compressions during a rhythm check? Answer: Continue
CPR while the defibrillator is charging. By keeping the "hands-on" time as high
as possible, the team ensures that the perfusion pressure built up by compressions
doesn't drop to zero while waiting for the device to reach the necessary energy
level. ✔️✔️
Question: Under what circumstances is it appropriate to withhold or stop
resuscitative efforts? Answer: Threat to provider safety. If the environment
becomes dangerous (e.g., fire, toxic fumes, or active violence), the safety of the
rescue team takes priority. Other indications include a valid DNR (Do Not
Resuscitate) order or unmistakable signs of irreversible death (e.g., rigor mortis).
✔️✔️
Question: If a patient's ECG shows an organized rhythm but they have no pulse
(Pulseless Electrical Activity), what is a priority action after starting CPR?
Answer: Establish IV or IO access. In non-shockable rhythms like PEA or
Asystole, obtaining access is critical so that the team can administer Epinephrine as
soon as possible to help restart the heart. ✔️✔️
Question: After confirming that a patient is unresponsive and not breathing
normally, and calling for help, what must you do before starting compressions?
Answer: Check for a pulse. This check must be performed for at least 5 but no
more than 10 seconds. If no pulse is felt, compressions begin immediately. ✔️✔️
Question: Is the routine use of cricoid pressure (the Sellick maneuver)
recommended to prevent aspiration during cardiac arrest? Answer: Not
recommended for routine use. Clinical evidence suggests it may interfere with
airway placement or ventilation and does not significantly reduce the risk of
aspiration during a resuscitation attempt. ✔️✔️
, Question: Why is CPR so vital for a patient who is in Ventricular Fibrillation (V-
Fib), even if a shock is required to fix the rhythm? Answer: It produces a small
but critical amount of blood flow to the heart and brain. This "buys time" by
keeping the heart muscle oxygenated, making it much more likely that the
subsequent shock will successfully convert the rhythm back to normal. ✔️✔️
what is the recommended compression rate for performing CPR?
at least 100 per minute
EMS personnel arrive to find a patient in cardiac arrest. Bystanders are performing
CPR. After attaching a cardiac monitor, the responder observes the following
rhythm strip. What is the most important early intervention?
defibrillation
a patient remains in ventricular fibrillation despite 1 shock and 2 minutes of
continuous CPR. the next intervention is to:
administer a second shock
what is the recommended next step after a defibrillation attempt?
begin CPR, starting with chest compressions
which of the following is the recommended first choice for establishing
intravenous access during the attempted resuscitation of a patient in cardiac arrest?
antecubital vein
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
||UPDATED 2026
Question: What specific action should the team take to minimize the duration of
interruptions in chest compressions during a rhythm check? Answer: Continue
CPR while the defibrillator is charging. By keeping the "hands-on" time as high
as possible, the team ensures that the perfusion pressure built up by compressions
doesn't drop to zero while waiting for the device to reach the necessary energy
level. ✔️✔️
Question: Under what circumstances is it appropriate to withhold or stop
resuscitative efforts? Answer: Threat to provider safety. If the environment
becomes dangerous (e.g., fire, toxic fumes, or active violence), the safety of the
rescue team takes priority. Other indications include a valid DNR (Do Not
Resuscitate) order or unmistakable signs of irreversible death (e.g., rigor mortis).
✔️✔️
Question: If a patient's ECG shows an organized rhythm but they have no pulse
(Pulseless Electrical Activity), what is a priority action after starting CPR?
Answer: Establish IV or IO access. In non-shockable rhythms like PEA or
Asystole, obtaining access is critical so that the team can administer Epinephrine as
soon as possible to help restart the heart. ✔️✔️
Question: After confirming that a patient is unresponsive and not breathing
normally, and calling for help, what must you do before starting compressions?
Answer: Check for a pulse. This check must be performed for at least 5 but no
more than 10 seconds. If no pulse is felt, compressions begin immediately. ✔️✔️
Question: Is the routine use of cricoid pressure (the Sellick maneuver)
recommended to prevent aspiration during cardiac arrest? Answer: Not
recommended for routine use. Clinical evidence suggests it may interfere with
airway placement or ventilation and does not significantly reduce the risk of
aspiration during a resuscitation attempt. ✔️✔️
, Question: Why is CPR so vital for a patient who is in Ventricular Fibrillation (V-
Fib), even if a shock is required to fix the rhythm? Answer: It produces a small
but critical amount of blood flow to the heart and brain. This "buys time" by
keeping the heart muscle oxygenated, making it much more likely that the
subsequent shock will successfully convert the rhythm back to normal. ✔️✔️
what is the recommended compression rate for performing CPR?
at least 100 per minute
EMS personnel arrive to find a patient in cardiac arrest. Bystanders are performing
CPR. After attaching a cardiac monitor, the responder observes the following
rhythm strip. What is the most important early intervention?
defibrillation
a patient remains in ventricular fibrillation despite 1 shock and 2 minutes of
continuous CPR. the next intervention is to:
administer a second shock
what is the recommended next step after a defibrillation attempt?
begin CPR, starting with chest compressions
which of the following is the recommended first choice for establishing
intravenous access during the attempted resuscitation of a patient in cardiac arrest?
antecubital vein
