50 Questions Answer Key ACLS Written Exam Answers PDF: Your Complete Study Guide
The ACLS (Advanced Cardiovascular Life Support) written exam is one of the most critical milestones for healthcare professionals seeking certification or recertification through the American Heart Association (AHA). Whether you are a nurse, physician, paramedic, or respiratory therapist, passing the ACLS exam demonstrates your competence in managing cardiovascular emergencies. This full breakdown provides 50 practice questions with detailed answer explanations, study strategies, and everything you need to confidently prepare for your ACLS written exam.
Understanding the ACLS Written Exam Format
Before diving into practice questions, Make sure you understand the structure of the ACLS exam. Consider this: it matters. The written test typically consists of 50 to 75 multiple-choice questions that must be completed within a set time frame. The exam covers a wide range of topics related to emergency cardiovascular care, including BLS (Basic Life Support), pharmacology, ECG interpretation, acute coronary syndromes, stroke management, and resuscitation algorithms.
Not the most exciting part, but easily the most useful.
The passing score is generally 84% or higher, meaning you can miss no more than a small number of questions. The exam is designed to test not only memorization but also your ability to apply clinical knowledge in time-sensitive, life-threatening scenarios Not complicated — just consistent. Simple as that..
Key Topics Covered in the ACLS Written Exam
Understanding the core content areas will help you focus your study efforts effectively:
- BLS Survey and ACLS Survey
- Cardiac arrest rhythms (VF/pVT, PEA, Asystole)
- Acute Coronary Syndrome (ACS) management
- Stroke assessment and the Stroke Chain of Survival
- Airway management and pharmacology
- Tachycardia and bradycardia management
- Post-cardiac arrest care
- Team dynamics and communication
- Medication dosages and indications
- ECG rhythm identification
50 ACLS Practice Questions with Answer Key
Below are 50 questions modeled after the format and content of the actual ACLS written exam. Each question is followed by the correct answer and a brief explanation to reinforce your understanding.
Questions 1–10: BLS and Emergency Response
1. What is the correct compression-to-ventilation ratio for adult CPR when performed by one rescuer?
- A) 15:2
- B) 30:2
- C) 15:1
- D) 30:1
Answer: B) 30:2. For adult CPR, the recommended ratio is 30 compressions to 2 ventilations for both single and two-rescuer scenarios.
2. At what rate should chest compressions be performed during CPR?
- A) 80–100 per minute
- B) 100–120 per minute
- C) 120–140 per minute
- D) 60–80 per minute
Answer: B) 100–120 per minute. High-quality CPR requires a compression rate of 100–120 per minute with a depth of at least 2 inches (5 cm) for adults.
3. Which of the following is the first step in the BLS Survey?
- A) Check for a pulse
- B) Begin chest compressions
- C) Ensure scene safety and check responsiveness
- D) Apply an AED
Answer: C) Ensure scene safety and check responsiveness. Scene safety always comes first before any intervention.
4. When should you stop CPR?
- A) After 5 minutes
- B) When an AED arrives
- C) When EMS takes over, an AED advises to stop, or the victim shows signs of life
- D) When you are tired
Answer: C) CPR continues until EMS arrives and takes over, an AED advises stopping, or the victim shows obvious signs of life.
5. What is the recommended depth for adult chest compressions?
- A) 1 inch (2.5 cm)
- B) 1.5 inches (4 cm)
- C) At least 2 inches (5 cm)
- D) 3 inches (7.5 cm)
Answer: C) At least 2 inches (5 cm). Compressions should be deep enough to create adequate blood flow.
6. Which of the following is a sign of effective CPR?
- A) The chest rises with each ventilation
- B) Visible chest recoil after each compression
- C) The victim begins moving
- D) All of the above
Answer: D) All of the above. Effective CPR produces visible chest rise, full recoil, and potential return of spontaneous movement Which is the point..
7. An AED advises "no shock advised." What should you do next?
- A) Stop CPR and wait for EMS
- B) Resume CPR immediately for 2 minutes
- C) Check for a pulse
- D) Remove the AED pads
Answer: B) Resume CPR immediately for 2 minutes. When no shock is advised, continue high-quality CPR and reassess rhythm after 2 minutes.
8. What does CAB stand for in BLS?
- A) Circulation, Airway, Breathing
- B) Compressions, Airway, Breathing
- C) Cardiac, Assessment, Breathing
- D) Compression, Assessment, Breathing
Answer: B) Compressions, Airway, Breathing. The CAB sequence emphasizes starting with chest compressions.
9. How often should rescuers switch roles during 2-rescuer CPR?
- A) Every 5 minutes
- B) Every 2 minutes
- C) Every 10 minutes
- D) Only when fatigued
Answer: B) Every 2 minutes. Switching every 2 minutes prevents fatigue and maintains compression quality Less friction, more output..
10. What is the purpose of the head-tilt/chin-lift maneuver?
- A) To check for a pulse
- B) To open the airway
- C) To check for breathing
- D) To stabilize the cervical spine
Answer: B) To open the airway. This maneuver is used to lift the tongue away from the back of the throat.
Questions 11–20: Cardiac Arrest Rhythms
11. Which rhythm is most commonly associated with sudden cardiac arrest and is shockable?
- A) Asystole
- B) PEA
- C) Ventricular Fibrillation (VF)
- D) Bradycardia
Answer: C) Ventricular Fibrillation (VF). VF is a disorganized, chaotic rhythm that requires immediate defibrillation.
**12. What is the first-line drug for VF/pulseless VT after the second
shock?
- A) Atropine
- B) Epinephrine
- C) Amiodarone
- D) Dopamine
Answer: C) Amiodarone. While epinephrine is used for vasopressibility, amiodarone (or lidocaine) is the primary antiarrhythmic used for shock-refractory VF/pVT.
13. Which of the following rhythms is considered "non-shockable"?
- A) Ventricular Tachycardia (VT)
- B) Ventricular Fibrillation (VF)
- C) Asystole
- D) Torsades de Pointes
Answer: C) Asystole. Asystole is a "flatline" rhythm; shocks cannot restart a heart with no electrical activity. CPR and epinephrine are the primary interventions Still holds up..
14. What is PEA?
- A) Primary Electrical Arrest
- B) Pulseless Electrical Activity
- C) Persistent EKG Abnormalities
- D) Pressure-Enhanced Airway
Answer: B) Pulseless Electrical Activity. PEA occurs when the EKG shows an organized rhythm, but the heart is not actually pumping blood to create a pulse.
15. In a "shockable" rhythm, what is the primary goal of the AED/Defibrillator?
- A) To restart the heart's beat
- B) To stop the chaotic electrical activity (depolarize the heart)
- C) To slow down a fast heart rate
- D) To increase the blood pressure
Answer: B) To stop the chaotic electrical activity (depolarize the heart). Defibrillation "resets" the heart, allowing the natural pacemaker (SA node) to regain control.
16. Which rhythm is characterized by a "sawtooth" appearance on an EKG?
- A) Atrial Fibrillation
- B) Atrial Flutter
- C) Ventricular Fibrillation
- D) Asystole
Answer: B) Atrial Flutter. This rhythm is often identified by its distinct, regular, sawtooth-shaped waves.
17. When treating a patient in pulseless Ventricular Tachycardia (pVT), the treatment is the same as for:
- A) Asystole
- B) PEA
- C) Ventricular Fibrillation (VF)
- D) Normal Sinus Rhythm
Answer: C) Ventricular Fibrillation (VF). Both pVT and VF are shockable rhythms and follow the same ACLS/BLS treatment algorithm It's one of those things that adds up..
18. What is the most critical action when an EKG shows Asystole?
- A) Deliver a maximum energy shock
- B) High-quality CPR and Epinephrine
- C) Intubate immediately
- D) Administer Amiodarone
Answer: B) High-quality CPR and Epinephrine. Since asystole is non-shockable, the focus is on circulation and pharmacological support to potentially restore a rhythm.
19. Which of the following is a common cause of PEA?
- A) Myocardial Infarction
- B) Hypovolemia (severe blood loss)
- C) Hypoxia
- D) All of the above
Answer: D) All of the above. PEA is often caused by reversible factors, often remembered by the "H's and T's" (Hypovolemia, Hypoxia, Toxins, Tension Pneumothorax, etc.).
20. What is the primary difference between VF and pVT?
- A) VF is shockable; pVT is not
- B) VF is chaotic; pVT is organized but too fast to pump
- C) VF has a pulse; pVT does not
- D) There is no difference
Answer: B) VF is chaotic; pVT is organized but too fast to pump. In VF, the ventricles quiver; in pVT, they contract rapidly and synchronously, but not effectively enough to circulate blood.
Conclusion
Mastering the fundamentals of Basic Life Support (BLS) and understanding cardiac rhythms is essential for anyone in the healthcare field or those seeking certification in emergency response. From the critical "CAB" sequence and the precision of chest compressions to the rapid identification of shockable versus non-shockable rhythms, every second counts during a cardiac event That's the part that actually makes a difference..
By consistently practicing these skills and staying updated on the latest guidelines, rescuers can significantly increase the chance of survival for victims of cardiac arrest. Now, remember: the goal is to maintain perfusion to the brain and heart until definitive care can be provided. Keep practicing, stay calm under pressure, and always prioritize high-quality CPR.
Counterintuitive, but true.
