ACLS Test Questions and Answers 2025: Pass the First Time
ACLS test questions and answers cover cardiac rhythms, algorithms, drug dosing, airway care, and teamwork, and passing means understanding why each step happens. If your stomach tightens before the written exam, you’re not alone. This guide follows the American Heart Association’s 2025 guidelines, so every answer reflects current ACLS certification standards.
Here you’ll find ACLS practice questions, quick-reference tables, and clear rationales drawn from real exam themes, written for nurses, paramedics, and physicians pursuing certification or recertification. Understand the reasoning behind each protocol, and you’ll face the testing room calm, prepared, and ready for the megacode skills session too.
ACLS Test Questions and Answers on Cardiac Rhythms and ECG Interpretation
Rhythm recognition is the foundation of every ACLS test question. You’ll identify ventricular fibrillation, pulseless ventricular tachycardia, asystole, and pulseless electrical activity, then decide whether defibrillation applies. Think of the monitor as a story, and each waveform tells you which chapter comes next.
Shockable rhythms, VF and pulseless VT, need immediate defibrillation with high-quality CPR. Nonshockable rhythms, asystole and PEA, call for compressions, epinephrine, and a hunt for reversible causes. Memorizing that split answers many ECG interpretation questions, so lock it in early.
| Rhythm | Shockable? | Core response |
| Ventricular fibrillation | Yes | CPR, defibrillation, epinephrine, amiodarone or lidocaine if refractory |
| Pulseless ventricular tachycardia | Yes | Same as VF |
| Pulseless electrical activity | No | CPR, epinephrine, treat reversible causes |
| Asystole | No | CPR, epinephrine, treat reversible causes |
ACLS Test Questions and Answers on ACLS Algorithms and Treatment Protocols
The cardiac arrest algorithm is a loop: high-quality CPR, rhythm check every two minutes, shock if shockable, then drugs and reversible causes. The 2025 update kept that familiar layout. Exam questions test sequence and timing, so practice saying each step aloud until it feels automatic.
Unstable tachycardia with a pulse needs synchronized cardioversion, while stable regular narrow-complex tachycardia may respond to vagal maneuvers and adenosine. For bradycardia, treatment depends on poor perfusion, not the rate alone. Expect scenario questions that make you choose between these branches.
| Practice question | Answer |
| After one shock for VF, what comes next? | Resume compressions immediately; recheck the rhythm after two minutes |
| How often do you rhythm-check during arrest? | Every two minutes |
| Compression-to-ventilation ratio without an advanced airway? | 30:2 |
| Longest acceptable pulse check? | 10 seconds |
| Treatment for unstable tachycardia with a pulse? | Synchronized cardioversion |
| What drives treatment of bradycardia? | Signs of poor perfusion, not the number alone |
ACLS Test Questions and Answers on Pharmacology and Drug Administration
Epinephrine 1 mg every three to five minutes remains the only vasopressor in the adult cardiac arrest algorithm. Amiodarone or lidocaine can follow for shock-refractory VF or pulseless VT. Exams often probe dose and timing questions, so build a one-page drug sheet and review it daily.
Beware outdated study banks. Some free pretests still list vasopressin or atropine for asystole, but those recommendations left the algorithm in earlier guideline cycles. Cross-check any practice question against the current AHA ACLS Provider Manual, because a wrong memorized answer is harder to unlearn than a missing one.
| Drug | Typical adult use | Long-standing AHA dose |
| Epinephrine | Cardiac arrest | 1 mg IV/IO every 3 to 5 minutes |
| Amiodarone | Refractory VF/pulseless VT | 300 mg first dose, 150 mg second |
| Lidocaine | Alternative for refractory VF/pulseless VT | 1 to 1.5 mg/kg first, 0.5 to 0.75 mg/kg second |
| Adenosine | Stable regular narrow-complex tachycardia | 6 mg rapid push, then 12 mg if needed |
Confirm every dose against your current ACLS Provider Manual, since 2025 refined some dosing details.
ACLS Test Questions and Answers on Post-Cardiac Arrest Care
Care doesn’t end when a pulse returns. After return of spontaneous circulation, you protect the brain and heart: avoid hypotension, avoid both low and excessive oxygen, and keep fever away. The 2025 guidelines treat post-arrest care as a continuation of resuscitation, so expect questions on it.
Typical questions ask about maintaining a mean arterial pressure of at least 65 mmHg, ordering a 12-lead ECG, and considering emergent coronary angiography for suspected STEMI. For comatose patients, targeted temperature management applies. Check your 2025 provider manual for the exact temperature range your course teaches.
ACLS Test Questions and Answers on Airway Management and Ventilation
With a bag-valve-mask and no advanced airway, use a 30:2 compression-to-ventilation ratio. Once an advanced airway is in place, give continuous compressions at 100 to 120 per minute and one breath every six seconds. Mixing up those two numbers is a classic exam trap.
Confirm endotracheal tube placement with waveform capnography, which also shows compression quality: a persistently low end-tidal CO2 suggests you should improve CPR. Avoid over-ventilation, since too many or too forceful breaths can reduce blood return to the heart. Gentle, steady squeezes win here.

ACLS Test Questions and Answers on Team Dynamics and Communication
ACLS is a team sport. The team leader assigns roles, such as compressor, airway, medication nurse, and recorder, then speaks clearly and invites input. Expect questions about who does what, since a resuscitation with confused roles wastes precious seconds between compressions.
Closed-loop communication means giving a clear order, hearing it repeated back, and confirming completion. For example, “Give epinephrine 1 mg IV,” then “Epinephrine 1 mg IV given.” Debriefing afterward, a growing emphasis in the 2025 guidelines, helps teams improve CPR quality and performance next time.
ACLS Test Questions and Answers on Special Circumstances and Modifications
Certain situations change the standard approach. In pregnancy, manual left uterine displacement relieves aortic compression, and teams prepare for resuscitative hysterotomy if circulation doesn’t return within minutes. Drowning and opioid overdose are respiratory-driven emergencies, so airway and ventilation come early alongside compressions.
Always scan the H’s and T’s for reversible causes: hypovolemia, hypoxia, hydrogen ion excess, hypo- or hyperkalemia, hypothermia, tension pneumothorax, tamponade, toxins, and thrombosis. Naming these quickly during a PEA scenario shows that you’re thinking beyond the shock button.
| Common exam mistake | Correct approach |
| Delivering stacked shocks | One shock, then immediate compressions |
| Giving vasopressin | Epinephrine is the vasopressor |
| Pausing compressions for each breath once an advanced airway is placed | Continuous compressions, one breath every 6 seconds |
| Taking long pulse checks | 10 seconds or less |
| Treating a slow heart rate on the number alone | Treat poor perfusion |
ACLS Test Questions and Answers on Quality Improvement and Measurement
High-quality CPR has measurable targets. Aim for 100 to 120 compressions per minute, a depth of at least 2 inches but no more than 2.4 inches, full chest recoil, and minimal interruptions. Exams often ask you to spot which of these a rescuer is getting wrong.
Feedback devices, metronomes, and capnography help teams hold that standard, and pulse checks should take no longer than ten seconds. Rotating compressors about every two minutes prevents fatigue. When quality slips, the team leader speaks up kindly but clearly, because each pause between compressions costs perfusion.

ACLS Test Questions and Answers on Ethical Considerations and Decision Making
Not every resuscitation should start, and not every one should continue. Valid DNR orders, clear signs of irreversible death, and unsafe scenes are legitimate reasons to withhold CPR. Test questions here reward judgment and respect for advance directives, not just memorized algorithms.
Deciding when to stop is a team decision based on reversible causes, response to treatment, and patient factors, and there’s no single universal time limit. Family presence, when staff can support relatives, may bring comfort. Compassion belongs in the code room as much as competence does.
| Quick practice question | Answer |
| Post-ROSC systolic pressure keeps falling. Priority? | Treat hypotension; target MAP of at least 65 mmHg |
| What do you check after ROSC with ST elevation? | 12-lead ECG, then emergent coronary angiography |
| What position change helps in late pregnancy arrest? | Manual left uterine displacement |
| Persistently low PETCO2 during CPR suggests? | Improve compression quality |
| What does PEA treatment target? | Reversible causes (H’s and T’s) |
ACLS Test Questions and Answers: The Impact of the New Life Support Guidelines
The AHA released its 2025 guidelines in October 2025, and training will follow them until the next revision around 2030. Most ACLS changes were refinements: drug timing, IV-first access, defibrillation strategy, post-arrest details, and a unified Chain of Survival. Make sure your practice test matches this cycle.
Certification cards typically last two years, so renewal planning matters. For exam logistics, training centers commonly describe 40 to 50 multiple-choice questions with an 84 percent passing score. Confirm your exact format with your course provider before test day.
| Exam fact | Typical detail |
| Format | Multiple choice |
| Questions | About 40 to 50 (varies by provider) |
| Passing score | Commonly cited as 84% |
| Card validity | Two years |
| Current guideline cycle | AHA 2025 |
ACLS Test Questions and Answers: Prepare for Success with Professional Training
Mastering ACLS test questions and answers is less about memorizing and more about understanding why each step saves lives. Review rhythms, algorithms, drugs, airway steps, and teamwork, then test yourself under timed conditions with current-cycle questions until your reasoning becomes automatic.
Pair self-study with an AHA-authorized course, hands-on skills practice, and instructor feedback. Those megacode simulations build the muscle memory no flashcard can. Walk in knowing you’ve prepared honestly, and remember the real goal: being the calm, competent clinician your patient needs on the worst day of their life.
Conclusion
Preparing for the ACLS exam becomes much easier when you understand the types of questions you may face and review the reasoning behind each answer. Practice questions can help strengthen your knowledge of cardiac rhythms, medications, treatment algorithms, and emergency response decisions while showing you where additional study may be needed. However, preparation should go beyond memorizing answers.
Focus on understanding why each intervention is appropriate and how the ACLS algorithms guide clinical decisions. With consistent practice, careful review, and a solid grasp of the core concepts, you can approach the test with greater confidence. Use every practice session as an opportunity to build knowledge and become better prepared for real-world emergencies.
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