300 ACTUAL QUESTIONS AND VERIFIED
ANSWERS WITH RATIONALES ALREADY
GRADED A+
Introduction
The American Red Cross ACLS (Advanced Life Support) Final Exam assesses
your ability to recognize and manage cardiac arrest, life-threatening arrhythmias,
respiratory compromise, and post-resuscitation care. The examination is based on
current evidence-based guidelines and requires integration of high-quality CPR
principles, pharmacology, airway management, and team dynamics. This practice
question bank follows the format of the actual exam, with each question
accompanied by the correct answer and a rationale explaining the underlying
clinical concept. The questions cover the major ACLS algorithms and are designed
to build both knowledge retention and clinical decision-making skills essential for
certification.
Practice Questions
1. A patient enters the emergency department in respiratory compromise. The
team is monitoring the patient using capnography and identifies that ETCO2
levels are initially 33 mmHg and later 40 mmHg. From these readings, the
team identifies that the patient is progressing in what stage of respiratory
compromise?
A. Respiratory failure
B. Respiratory arrest
C. Respiratory distress
D. Compensated respiratory acidosis
Correct Answer: C. Respiratory distress
,Rationale: The initial ETCO2 of 33 mmHg indicates a low or low-normal value,
which can be seen in early respiratory distress. The later reading of 40 mmHg is a
normal ETCO2, suggesting that the patient is in the earliest stage (respiratory
distress). An ETCO2 of 55 mmHg suggests respiratory failure.
2. Assessment of a patient reveals an ETCO2 level of 55 mmHg and an arterial
oxygen saturation (SaO2) level of 88%. The provider would interpret these
findings as indicative of which condition?
A. Respiratory distress
B. Respiratory failure
C. Respiratory arrest
D. Hyperventilation syndrome
Correct Answer: B. Respiratory failure
Rationale: An ETCO2 of 55 mmHg is elevated (hypercapnia), and an SaO2 of 88%
is low (hypoxemia). This combination of inadequate ventilation and oxygenation
indicates respiratory failure, which is a more severe stage of respiratory
compromise than respiratory distress.
3. A resuscitation team is debriefing following a recent event. A patient
experienced cardiac arrest, and advanced life support was initiated. The
patient required the placement of an advanced airway to maintain airway
patency. Which statement indicates that the team performed high-quality
CPR?
A. "We provided chest compressions at a rate of 80 to 90 compressions per
minute."
B. "We provided chest compressions at a rate of 100 to 120 compressions per
minute while giving 1 ventilation every 6 seconds without pausing for
compressions."
C. "We paused compressions for every ventilation."
D. "We provided compressions at a rate of 140 compressions per minute."
,Correct Answer: B. "We provided chest compressions at a rate of 100 to 120
compressions per minute while giving 1 ventilation every 6 seconds without
pausing for compressions."
Rationale: High-quality CPR with an advanced airway includes compressions at a
rate of 100 to 120 per minute and ventilations at a rate of 1 breath every 6 seconds
(10 breaths/min) without pausing compressions. The other options describe
incorrect rates or inappropriate pauses.
4. A responsive patient is choking. What method should the provider use first
to clear the obstructed airway?
A. Abdominal thrusts
B. Chest thrusts
C. Back blows
D. Finger sweep
Correct Answer: C. Back blows
Rationale: For a responsive choking patient, the first step is to deliver back blows
between the shoulder blades. This is followed by abdominal thrusts if the
obstruction is not relieved. Finger sweeps are not recommended for responsive
patients because they may push the object further into the airway.
5. A patient is in cardiac arrest. The cardiac monitor shows asystole. In
addition to providing continuous high-quality CPR, what is the other priority
intervention for this patient?
A. Defibrillation
B. Administering epinephrine as early as possible
C. Transcutaneous pacing
D. Administering amiodarone
Correct Answer: B. Administering epinephrine as early as possible
Rationale: Asystole is a non-shockable rhythm. The priority interventions are high-
quality CPR and administration of epinephrine 1 mg IV/IO as soon as possible,
, repeated every 3 to 5 minutes. Defibrillation and pacing are not indicated for
asystole.
6. Cardiac monitoring reveals a tachyarrhythmia. The patient is
hemodynamically stable and has a regular heart rate ranging from 120 to 135
beats per minute. Which statements by the patient could the team interpret as
contributing to the tachyarrhythmia? (Select all that apply)
A. "I've had a terrible cold with a horrible cough for the past week and today I
developed a fever."
B. "I've been vomiting for the past 2 days from a GI bug."
C. "I've been so anxious lately because I just lost my job."
D. "I've been taking my blood pressure medication regularly."
Correct Answer: A, B, C
Rationale: Fever, dehydration from vomiting, and anxiety are all recognized
contributors to tachyarrhythmias. Taking blood pressure medication regularly is not
a cause of tachyarrhythmia; in fact, medication noncompliance or withdrawal can
sometimes contribute to tachycardia.
7. Cardiac monitoring indicates that a patient has a ventricular
tachyarrhythmia. The patient has a pulse and is not showing any signs of
hemodynamic compromise. A 12-lead ECG reveals an irregular rhythm with
QRS complexes greater than 0.12 second in duration. Which action would be
appropriate at this time?
A. Immediate defibrillation
B. Consider an antiarrhythmic medication
C. Synchronized cardioversion at 50 J
D. Administration of adenosine 6 mg
Correct Answer: B. Consider an antiarrhythmic medication
Rationale: This patient has stable ventricular tachycardia (wide QRS, pulse present,
no hemodynamic compromise). For stable wide-complex tachycardia,