ACLS POST TEST 1-4 EXAM – QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
*Core Domains:*
*• Recognition and Management of ACS and Stroke*
*• High-Quality CPR and AED Mechanics*
*• Bradycardia and Tachycardia Algorithms*
*• Cardiac Arrest Rhythms and Interventions*
*• Post-Cardiac Arrest Care and Neuroprognostication*
*• Effective Resuscitation Team Dynamics*
*• Advanced Airway Management and Ventilation*
*• Pharmacological Protocols and Dosages*
*Introduction:*
*The purpose of this comprehensive assessment is to evaluate clinical proficiency, rapid decision-making,
Section One: Questions 1–100
Question 1
A 62-year-old male is brought to the emergency department experiencing crushing chest pain radiating to his
left arm. The monitor shows sinus tachycardia at 110 beats per minute with 3 mm ST-segment elevation in
leads V1 through V4. The patient is short of breath with an oxygen saturation of 94% on room air. What is the
most immediate pharmacological priority for this patient?
A. Administer a 150 mg bolus of amiodarone intravenously
B. Administer 162 to 325 mg of non-enteric coated aspirin to chew
,C. Administer 2 mg of morphine sulfate intravenously
D. Administer a high-flow supplemental oxygen via non-rebreather mask
🟢 B. Administer 162 to 325 mg of non-enteric coated aspirin to chew
🔴 Explanation: Aspirin inhibits platelet aggregation and is a critical early intervention for acute coronary
syndromes (ACS) presenting with ST-elevation myocardial infarction (STEMI). It has been shown to
significantly reduce mortality. Supplemental oxygen is only indicated if the oxygen saturation is below 90% or if
the patient exhibits signs of respiratory distress. Morphine is reserved for pain refractory to nitrates, and
amiodarone is an antiarrhythmic not indicated for acute myocardial infarction without malignant ventricular
arrhythmias.
Question 2
During a cardiac arrest resuscitation attempt, the team leader notes that the patient's rhythm has changed
from ventricular fibrillation to an organized, narrow-complex rhythm on the monitor. The compression cycle
has just completed. What is the next immediate action the team must take?
A. Check for a palpable pulse for no more than 10 seconds
B. Deliver a synchronized cardioversion shock immediately
C. Administer a 1 mg dose of epinephrine intravenously
D. Perform an immediate endotracheal intubation
🟢 A. Check for a palpable pulse for no more than 10 seconds
🔴 Explanation: When an organized rhythm is seen following cardiac arrest or a shockable rhythm
conversion, the provider must assess for a pulse to differentiate between pulseless electrical activity (PEA)
and return of spontaneous circulation (ROSC). This check must take no more than 10 seconds to minimize
pauses in chest compressions. Cardioversion is not indicated without a confirmed pulse and unstable
tachyarrhythmia, and medications or advanced airways should not delay rhythm and pulse assessments.
Question 3
A 74-year-old female is admitted to the emergency department with altered mental status, diaphoresis, and
acute chest discomfort. The monitor reveals a sinus bradycardia at 38 beats per minute. Her blood pressure is
78/44 mmHg. What is the initial recommended dose of atropine sulfate for this symptomatic patient?
A. 0.5 mg intravenously
,B. 1.0 mg intravenously
C. 3.0 mg intravenously
D. 0.1 mg intravenously
🟢 B. 1.0 mg intravenously
🔴 Explanation: Current ACLS guidelines specify that the initial dose of atropine for symptomatic or unstable
bradycardia is 1.0 mg given intravenously. This dose can be repeated every 3 to 5 minutes up to a maximum
total dose of 3.0 mg. Doses lower than 1.0 mg (such as the historical 0.5 mg dose) are no longer
recommended as they may paradoxically cause a vagolytic effect and further slow the heart rate.
Question 4
A patient in the intensive care unit develops ventricular fibrillation. The monitor alarms, and a nurse
immediately begins chest compressions. A second nurse arrives with a biphasic defibrillator. What is the
standard recommended initial energy dose for delivering a shock with a biphasic device?
A. 360 Joules
B. 120 to 200 Joules
C. 50 to 100 Joules
D. 300 Joules
🟢 B. 120 to 200 Joules
🔴 Explanation: The standard initial energy dose for a biphasic defibrillator during a shockable cardiac arrest
rhythm (ventricular fibrillation or pulseless ventricular tachycardia) is 120 to 200 Joules, depending on the
manufacturer's specific recommendation. If the specific recommendation is unknown, the maximum available
dose should be used. 360 Joules is the standard setting used for monophasic defibrillators.
Question 5
A 45-year-old female presents with a regular, narrow-complex tachycardia at a rate of 185 beats per minute.
She is fully alert, denies chest pain or shortness of breath, and her blood pressure is stable at 118/76 mmHg.
Vagal maneuvers have been attempted without success. What is the next preferred clinical intervention?
A. Perform immediate synchronized cardioversion at 50 Joules
B. Administer amiodarone 150 mg intravenously over 10 minutes
C. Administer adenosine 6 mg rapid intravenous push
, D. Administer diltiazem 0.25 mg/kg intravenously over 2 minutes
🟢 C. Administer adenosine 6 mg rapid intravenous push
🔴 Explanation: The patient is experiencing stable supraventricular tachycardia (SVT). After vagal maneuvers
fail, the first-line pharmacological treatment is a rapid intravenous push of adenosine 6 mg, followed
immediately by a saline flush. Synchronized cardioversion is reserved for unstable patients. Amiodarone is
typically used for wide-complex tachycardias, and diltiazem (a calcium channel blocker) is a second-line
consideration if adenosine fails to convert the rhythm.
Question 6
An advanced airway (endotracheal tube) is successfully placed during a cardiac arrest resuscitation attempt.
To ensure proper ventilation without compromising venous return or coronary perfusion pressure, what is the
correct ventilation rate for this patient while continuous chest compressions are performed?
A. 1 ventilation every 6 seconds (10 ventilations per minute)
B. 1 ventilation every 3 seconds (20 ventilations per minute)
C. 2 ventilations after every 30 compressions
D. 1 ventilation every 10 seconds (6 ventilations per minute)
🟢 A. 1 ventilation every 6 seconds (10 ventilations per minute)
🔴 Explanation: Once an advanced airway is in place, compressions are delivered continuously without
pausing for breaths. Ventilations should be given at a rate of 1 breath every 6 seconds, which translates to
exactly 10 ventilations per minute. Hyperventilation must be avoided because it increases intrathoracic
pressure, which decreases venous return to the heart and lowers coronary perfusion pressure.
Question 7
A 55-year-old male is in pulseless electrical activity (PEA) cardiac arrest. The team has established
intravenous access, initiated high-quality CPR, and confirmed advanced airway placement. Epinephrine has
been given. What is the most important clinical strategy for identifying and treating the underlying cause of
PEA?
A. Serial arterial blood gas monitoring
B. Systematic consideration of the H's and T's
C. Empirical administration of sodium bicarbonate
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
*Core Domains:*
*• Recognition and Management of ACS and Stroke*
*• High-Quality CPR and AED Mechanics*
*• Bradycardia and Tachycardia Algorithms*
*• Cardiac Arrest Rhythms and Interventions*
*• Post-Cardiac Arrest Care and Neuroprognostication*
*• Effective Resuscitation Team Dynamics*
*• Advanced Airway Management and Ventilation*
*• Pharmacological Protocols and Dosages*
*Introduction:*
*The purpose of this comprehensive assessment is to evaluate clinical proficiency, rapid decision-making,
Section One: Questions 1–100
Question 1
A 62-year-old male is brought to the emergency department experiencing crushing chest pain radiating to his
left arm. The monitor shows sinus tachycardia at 110 beats per minute with 3 mm ST-segment elevation in
leads V1 through V4. The patient is short of breath with an oxygen saturation of 94% on room air. What is the
most immediate pharmacological priority for this patient?
A. Administer a 150 mg bolus of amiodarone intravenously
B. Administer 162 to 325 mg of non-enteric coated aspirin to chew
,C. Administer 2 mg of morphine sulfate intravenously
D. Administer a high-flow supplemental oxygen via non-rebreather mask
🟢 B. Administer 162 to 325 mg of non-enteric coated aspirin to chew
🔴 Explanation: Aspirin inhibits platelet aggregation and is a critical early intervention for acute coronary
syndromes (ACS) presenting with ST-elevation myocardial infarction (STEMI). It has been shown to
significantly reduce mortality. Supplemental oxygen is only indicated if the oxygen saturation is below 90% or if
the patient exhibits signs of respiratory distress. Morphine is reserved for pain refractory to nitrates, and
amiodarone is an antiarrhythmic not indicated for acute myocardial infarction without malignant ventricular
arrhythmias.
Question 2
During a cardiac arrest resuscitation attempt, the team leader notes that the patient's rhythm has changed
from ventricular fibrillation to an organized, narrow-complex rhythm on the monitor. The compression cycle
has just completed. What is the next immediate action the team must take?
A. Check for a palpable pulse for no more than 10 seconds
B. Deliver a synchronized cardioversion shock immediately
C. Administer a 1 mg dose of epinephrine intravenously
D. Perform an immediate endotracheal intubation
🟢 A. Check for a palpable pulse for no more than 10 seconds
🔴 Explanation: When an organized rhythm is seen following cardiac arrest or a shockable rhythm
conversion, the provider must assess for a pulse to differentiate between pulseless electrical activity (PEA)
and return of spontaneous circulation (ROSC). This check must take no more than 10 seconds to minimize
pauses in chest compressions. Cardioversion is not indicated without a confirmed pulse and unstable
tachyarrhythmia, and medications or advanced airways should not delay rhythm and pulse assessments.
Question 3
A 74-year-old female is admitted to the emergency department with altered mental status, diaphoresis, and
acute chest discomfort. The monitor reveals a sinus bradycardia at 38 beats per minute. Her blood pressure is
78/44 mmHg. What is the initial recommended dose of atropine sulfate for this symptomatic patient?
A. 0.5 mg intravenously
,B. 1.0 mg intravenously
C. 3.0 mg intravenously
D. 0.1 mg intravenously
🟢 B. 1.0 mg intravenously
🔴 Explanation: Current ACLS guidelines specify that the initial dose of atropine for symptomatic or unstable
bradycardia is 1.0 mg given intravenously. This dose can be repeated every 3 to 5 minutes up to a maximum
total dose of 3.0 mg. Doses lower than 1.0 mg (such as the historical 0.5 mg dose) are no longer
recommended as they may paradoxically cause a vagolytic effect and further slow the heart rate.
Question 4
A patient in the intensive care unit develops ventricular fibrillation. The monitor alarms, and a nurse
immediately begins chest compressions. A second nurse arrives with a biphasic defibrillator. What is the
standard recommended initial energy dose for delivering a shock with a biphasic device?
A. 360 Joules
B. 120 to 200 Joules
C. 50 to 100 Joules
D. 300 Joules
🟢 B. 120 to 200 Joules
🔴 Explanation: The standard initial energy dose for a biphasic defibrillator during a shockable cardiac arrest
rhythm (ventricular fibrillation or pulseless ventricular tachycardia) is 120 to 200 Joules, depending on the
manufacturer's specific recommendation. If the specific recommendation is unknown, the maximum available
dose should be used. 360 Joules is the standard setting used for monophasic defibrillators.
Question 5
A 45-year-old female presents with a regular, narrow-complex tachycardia at a rate of 185 beats per minute.
She is fully alert, denies chest pain or shortness of breath, and her blood pressure is stable at 118/76 mmHg.
Vagal maneuvers have been attempted without success. What is the next preferred clinical intervention?
A. Perform immediate synchronized cardioversion at 50 Joules
B. Administer amiodarone 150 mg intravenously over 10 minutes
C. Administer adenosine 6 mg rapid intravenous push
, D. Administer diltiazem 0.25 mg/kg intravenously over 2 minutes
🟢 C. Administer adenosine 6 mg rapid intravenous push
🔴 Explanation: The patient is experiencing stable supraventricular tachycardia (SVT). After vagal maneuvers
fail, the first-line pharmacological treatment is a rapid intravenous push of adenosine 6 mg, followed
immediately by a saline flush. Synchronized cardioversion is reserved for unstable patients. Amiodarone is
typically used for wide-complex tachycardias, and diltiazem (a calcium channel blocker) is a second-line
consideration if adenosine fails to convert the rhythm.
Question 6
An advanced airway (endotracheal tube) is successfully placed during a cardiac arrest resuscitation attempt.
To ensure proper ventilation without compromising venous return or coronary perfusion pressure, what is the
correct ventilation rate for this patient while continuous chest compressions are performed?
A. 1 ventilation every 6 seconds (10 ventilations per minute)
B. 1 ventilation every 3 seconds (20 ventilations per minute)
C. 2 ventilations after every 30 compressions
D. 1 ventilation every 10 seconds (6 ventilations per minute)
🟢 A. 1 ventilation every 6 seconds (10 ventilations per minute)
🔴 Explanation: Once an advanced airway is in place, compressions are delivered continuously without
pausing for breaths. Ventilations should be given at a rate of 1 breath every 6 seconds, which translates to
exactly 10 ventilations per minute. Hyperventilation must be avoided because it increases intrathoracic
pressure, which decreases venous return to the heart and lowers coronary perfusion pressure.
Question 7
A 55-year-old male is in pulseless electrical activity (PEA) cardiac arrest. The team has established
intravenous access, initiated high-quality CPR, and confirmed advanced airway placement. Epinephrine has
been given. What is the most important clinical strategy for identifying and treating the underlying cause of
PEA?
A. Serial arterial blood gas monitoring
B. Systematic consideration of the H's and T's
C. Empirical administration of sodium bicarbonate
