CPR Practice Test 25 Questions And Answers
I've been teaching BLS and ACLS courses for over a decade, and honestly, the way people study for the written exam often tells you everything you need to know about whether they're actually prepared for what happens when the monitor alarms. The American Heart Association and Red Cross both changed their question banks a few cycles ago, and a lot of study materials online haven't caught up. You'll see outdated compression ratios and stale drug dosages floating around if you're not careful. Most people just reread the answers and move on. That's not how this works. The actual skill test takes about twelve minutes, and the written portion moves fast because they know you've studied the algorithms. What I tell my students is to do the practice questions twice under timed conditions before they schedule their actual exam, and the second attempt almost always shows a meaningful improvement if they bothered to understand the first round of misses. The AHA Heartsaver course and the BLS for Healthcare Providers exam draw from overlapping but distinct pools. Your practice questions should match the exact credential you're pursuing. If you're going for BLS, working through questions about high-quality CPR, AED placement, and two-rescuer bag-mask technique is where you should spend your time. If it's Heartsaver First Aid/CPR/AED, the scenarios lean more toward community response and choking management.
Here's a practical issue I hit recently that most prep sites don't mention. The 2025 exam revision introduced several new scenario-based questions that describe a real event before asking what you should do. Candidates who just memorized answer choices without understanding the reasoning struggled because the wrong options were constructed to look plausible if you'd only studied superficially. I had one student who scored 78% on a practice test by recognizing letter patterns, then bombed the real exam because every scenario was rotated. He needed to actually understand the algorithm flow, not the order of the answers.
The algorithm structure behind the questions
Before I list out sample questions, let me explain what the exam is actually testing, because knowing the structure makes the questions simpler. The BLS exam evaluates three core areas: recognition and activation of emergency response, high-quality CPR for adults and children, and AED use with team dynamics. Each area has specific performance criteria that translate directly into written questions. High-quality CPR isn't just "push hard and fast." The exam expects you to know the exact numbers: at least 2 inches for adults, no more than 2.4 inches, a rate between 100 and 120 per minute, and full chest recoil between compressions. For infants, it's about 1.5 inches. Compression-to-ventilation ratios differ by age and rescuer count, and that's a common trap on the test. Two-rescuer infant CPR uses a 15:2 ratio, but adult two-rescuer CPR stays at 30:2. One-rescuer adult is always 30:2 regardless. Here are 25 questions that reflect the current exam format and difficulty level. I've written these based on the latest AHA and Red Cross guidelines, and I've included notes where the exam tends to surprise people. Treat these as practice, not the actual test. If you score below 75%, go back through the official manual before booking your exam slot.
Sample questions from Cpr Practice Test 25 Questions And Answers
Question 1: When performing chest compressions on an adult, where should you place the heel of your hand? A) The upper abdomen
B) The center of the chest, on the lower half of the sternum
C) The left side of the chest over the heart
D) The tip of the sternum Answer: B. The key phrase here is lower half of the sternum. Candidates who select A are confusing compression site with gastric placement, and D represents the xiphoid process, which can fracture during compressions.
Get the Full Details

Question 2: What is the recommended compression depth for an adult patient? A) At least 1 inch
B) At least 2 inches but no more than 2.4 inches
C) At least 3 inches
D) About 1.5 inches Answer: B. This changed in the 2020 guidelines update. The old "at least 2 inches" without an upper limit caused some rescuers to overcompress. The 2.4-inch ceiling exists to reduce rib fracture risk while still maintaining adequate perfusion pressure.
Question 3: What compression rate should you aim for during CPR? A) 80 to 100 per minute
B) 90 to 110 per minute
C) 100 to 120 per minute
D) 120 to 140 per minute Answer: C. Rates above 120 compromise filling time. Rates below 100 don't generate sufficient cardiac output. The rhythm of Stayin' Alive by the Bee Gees is still a valid coaching tool, though some candidates find modern tempo songs more useful depending on the culture they're in.
Question 4: In a two-rescuer infant CPR scenario, what is the compression-to-ventilation ratio? A) 15:2
B) 30:2
C) 5:1
D) 12:1 Answer: A. This is one of the most commonly missed questions. The adult ratio stays at 30:2 even with two rescuers. Only infant and child CPR switches to 15:2 when two rescuers are present. One-rescuer infant and child CPR remains 30:2.
Question 5: When using an AED on a child, what should you do if adult pads are the only ones available? A) Do not use the AED
B) Place one pad in the center of the chest and one on the back
C) Use the pads anyway without modification
D) Cut the pads in half Answer: B. Anterior-posterior pad placement prevents pad-to-pad contact on a small chest. Never delay defibrillation because pediatric pads aren't available. The AHA is explicit about this: any AED is better than no AED.

Question 6: How long should each rescue breath last during CPR? A) About 1 second, watching for visible chest rise
B) As quick as possible to minimize interruption
C) 3 seconds per breath
D) Until the lungs are fully inflated Answer: A. Overly forceful or prolonged breaths increase intrathoracic pressure and reduce venous return, which directly undermines coronary perfusion pressure. This is an important physiological point that separates good CPR from average CPR, and exam writers know it.
Question 7: What is the maximum acceptable interruption in chest compressions during resuscitation? A) 5 seconds
B) 10 seconds
C) 15 seconds
D) 20 seconds Answer: B. The 10-second rule applies to pulse checks, rhythm analysis, and AED pad placement. Studies show that each 10-second pause reduces survival by approximately 4 to 7 percent. This is why modern BLS emphasizes minimizing interruptions and using real-time feedback devices when available.
Question 8: When performing CPR on a drowning victim, what is the correct sequence? A) Airway, Breathing, Compressions (ABC)
B) Compressions, Airway, Breathing (CAB)
C) Breathing, Compressions, Airway
D) Airway first, then compressions Answer: B. The CAB sequence applies to all adult and pediatric CPR, including drowning. Some candidates still answer A because they learned ABC years ago. The AHA switched to CAB in 2010, and every updated course since then uses the new sequence. Drowning-specific protocols also don't require prior airway clearance before breaths.
Question 9: What is the correct hand position for infant CPR compressions? A) Two thumbs encircling the chest with fingers supporting the back
B) Two fingers in the center of the chest just below the nipple line
C) One hand in the center of the chest
D) The heel of one hand on the lower sternum Answer: Both A and B are acceptable depending on rescuer count. Single-rescuer infant CPR typically uses two fingers. Two-rescuer infant CPR uses the two-thumb encircling technique, which generates higher coronary perfusion pressures and is the preferred method in hospital settings. The exam may ask which is preferred, and the answer is the two-thumb technique for healthcare providers.

Question 10: How often should rescuers rotate compressor roles during CPR? A) Every 2 minutes
B) Every 5 minutes
C) Every 30 compressions
D) Only when the patient shows signs of life Answer: A. Quality deteriorates noticeably after about 2 minutes of continuous compressions, even among trained rescuers. Rotation should happen during AED rhythm analysis or pulse checks to avoid unnecessary pauses. In practice, this means organizing team dynamics so that one person calls for rotation before the switch happens.
Question 11: What is the primary reason for pushing hard and fast during chest compressions? A) To break ribs and create an air gap
B) To directly squeeze the heart and pump blood
C) To increase intrathoracic pressure and drive blood flow
D) To warm the patient's core temperature Answer: C. While both the direct cardiac compression theory and the thoracic pump theory are discussed in the literature, the clinical exam focuses on the mechanism that best explains perfusion during CPR. The thoracic pump mechanism is the widely accepted model for adult CPR, though infant CPR may involve more direct cardiac compression due to chest wall compliance.
Question 12: When an AED analyzes a rhythm, what should all rescuers be doing? A) Continuing compressions
B) Standing clear and not touching the patient
C) Preparing the airway
D) Administering rescue breaths Answer: B. The AED needs a static patient to analyze the cardiac rhythm accurately. Motion artifact can cause misreads, which delays defibrillation and may lead to an inappropriate shock decision. This is non-negotiable and appears on every exam cycle.
Question 13: What is the correct sequence for a single-rescuer adult CPR cycle? A) 15 compressions then 2 breaths
B) 30 compressions then 2 breaths
C) 30 compressions then 5 breaths
D) Continuous compressions with breaths every 6 seconds Answer: B. The 30:2 ratio for adult single-rescuer CPR is consistent across all adult cases regardless of whether the arrest is cardiac or respiratory in origin. The exception is during advanced airway management, where compressions become continuous and ventilations are delivered at a rate of one breath every 6 seconds without pausing compressions.

Question 14: Which of the following is a sign that CPR is effective? A) Pupillary constriction and return of spontaneous circulation indicators
B) Blue-tinged skin
C) Absence of pulse
D) Shallow breathing patterns Answer: A. Effective CPR is assessed by signs of perfusion including color change, pupillary response, and occasionally palpable pulses during compressions. ROSC is the ultimate indicator. Note that the absence of a pulse is expected in cardiac arrest and does not indicate effective resuscitation. Many candidates confuse the absence of a pulse with a sign of successful CPR.
Question 15: What should you do if a conscious adult is choking and cannot cough, speak, or breathe? A) Begin CPR immediately
B) Perform abdominal thrusts
C) Pat the back 5 times and then give 5 chest thrusts
D) Wait to see if they can clear the obstruction Answer: B. Abdominal thrusts are the standard intervention for conscious choking in adults and children over one year. For infants, the protocol is back slaps and chest thrusts, not abdominal thrusts, because the infant abdomen is vulnerable and the technique is less effective. This distinction is frequently tested.
Question 16: How many abdominal thrusts should you deliver to a choking adult? A) Up to 5
B) Up to 10
C) Until the object is expelled or the patient becomes unconscious
D) Exactly 15 Answer: C. You continue thrusts until the obstruction is cleared or the patient loses consciousness, at which point you begin CPR. There is no fixed maximum number in the guidelines. In practice, if five thrusts haven't worked, you reassess and continue. Some first aid courses teach a five-and-five back-slap and abdominal-thrust sequence, but the AHA BLS protocol focuses on abdominal thrusts alone for conscious choking.
Question 17: When checking for a pulse during CPR, how long should the check last? A) No longer than 5 seconds
B) No longer than 10 seconds
C) At least 15 seconds
D) At least 30 seconds Answer: B. Pulse checks should not exceed 10 seconds. Prolonged pulse checks delay compressions and are often inaccurate, especially in low-perfusion states. The carotid pulse is preferred in adults and children, while the brachial pulse is used for infants. This is a standard exam question.

Question 18: What is the primary difference between cardiac arrest and heart attack? A) They are the same medical emergency
B) Cardiac arrest involves cessation of breathing and circulation, while a heart attack is a circulation problem
C) Heart attack is always fatal within minutes
D) Cardiac arrest only occurs in elderly patients Answer: B. A heart attack is a plumbing problem, a blockage in the coronary arteries. Cardiac arrest is an electrical problem where the heart stops pumping effectively. A heart attack can trigger cardiac arrest, but they are not interchangeable terms. Misunderstanding this distinction is a common reason candidates hesitate to begin CPR, thinking they need a diagnosis before acting.
Question 19: What is the correct sequence of steps when using an AED? A) Power on, attach pads, analyze rhythm, deliver shock if advised
B) Attach pads, power on, deliver shock, analyze rhythm
C) Analyze rhythm, attach pads, power on, deliver shock
D) Deliver shock, power on, attach pads, analyze rhythm Answer: A. Some AEDs activate automatically when you open the lid, but the principle remains the same: power on, attach pads, analyze, shock. Never deliver a shock without analyzer confirmation unless the AED is in manual mode and the operator interprets the rhythm. Automated external defibrillators make the decision for you.
Question 20: When should you check for breathing during CPR assessment? A) Look, listen, and feel for no more than 10 seconds
B) Listen for breathing for at least 30 seconds
C) Only check breathing if you suspect respiratory arrest
D) Check breathing continuously during compressions Answer: A. The simultaneous look, listen, and feel technique should take no more than 10 seconds. Agonal gasps are not normal breathing and should not delay starting compressions. Many candidates waste precious seconds waiting for a gasp to stop before beginning CPR. Agonal breathing is a sign of cardiac arrest, not recovery.
Question 21: What is the recommended ventilat