3.0 Adult CPR CPR/AED Practice Quiz
65 exam-style questions covering 22% of the CPR/AED exam. Instant feedback on every answer, progress tracking, no signup required.
This domain is part of the CPR / AED Certification practice test. Each question is tagged by exam objective and difficulty so you can drill exactly the areas you need.
Sample Questions
Where should an adult receiving CPR be positioned?
- A. Faceup on a firm, flat surface
- B. Seated upright in a chair
- C. On a soft mattress without adjustment
- D. On their side while compressions are performed
Effective adult chest compressions require the person to be faceup on a firm, flat surface. This is the correct answer.
Which alternate technique may help a rescuer with joint problems?
- A. Place one hand on the sternum and use the other hand to support the wrist
- B. Use shallow compressions to avoid discomfort
- C. Skip compressions and give breaths only
- D. Compress with fingertips to reduce wrist pressure
The manual shows an alternate adult compression technique supporting the wrist for rescuers with joint issues. This is the correct answer.
Where should the rescuer place the heel of the hand for adult chest compressions?
- A. Over the left ribs only
- B. On the lower half of the sternum
- C. Directly over the throat
- D. Over the upper abdomen
Adult compressions are delivered with the heel of one hand on the lower half of the sternum. This is the correct answer.
Why should compressions deeper than 2.4 inches or 6 cm be avoided?
- A. They replace the need for chest recoil
- B. They may decrease effectiveness and cause injuries
- C. They make AED pads unnecessary
- D. They always improve blood flow
Excessive adult compression depth may decrease CPR effectiveness and cause injuries. This is the correct answer.
What does chest compression fraction measure?
- A. The AED battery strength during CPR
- B. The percentage of CPR time spent performing chest compressions
- C. The depth of each individual compression
- D. The number of breaths delivered per cycle
Chest compression fraction measures how much of resuscitation time includes active compressions. This is the correct answer.
During adult CPR practice, what body position helps the rescuer compress effectively?
- A. Standing far from the person and reaching in
- B. Elbows bent and body leaning backward
- C. Shoulders directly over the hands with arms straight
- D. Hands placed beside the chest without downward force
Keeping shoulders over the hands helps deliver compressions straight down with adequate depth. This is the correct answer.
What is the recommended adult chest compression rate?
- A. 60 to 80 per minute
- B. 150 to 180 per minute
- C. 100 to 120 compressions per minute
- D. 40 to 60 per minute
High-quality adult CPR uses a compression rate of 100 to 120 per minute. This is the correct answer.
Which hand position is acceptable for adult compressions?
- A. Fingers pressing into the lower ribs
- B. One hand pressing on the stomach
- C. Both hands around the neck
- D. One hand on the lower half of the sternum with the other hand on top
Adult CPR commonly uses two hands centered on the lower half of the sternum. This is the correct answer.
Key Terms in This Domain
- Hands-Only CPR: Compression-only CPR for untrained or unwilling-to-do-rescue-breaths bystanders responding to a teen or adult collapse
- Compression-to-ventilation ratio (single rescuer): 30:2 for adults, children, and infants when one rescuer is present
- Hand placement (adult): Heel of one hand on the lower half of the sternum, second hand on top with fingers interlaced
- Two-rescuer adult CPR: 30:2 ratio is retained for adults; switch compressors every 2 minutes (about 5 cycles) to limit fatigue
- Switch every 2 minutes: Compressors should swap positions roughly every 2 minutes to maintain compression quality
- Child compression technique: One or two hands on the lower half of the sternum, depending on the rescuer's size and the child's body
- Compression-ventilation ratio (two-rescuer pediatric): 15:2 for children and infants when two rescuers are present
- Drowning: Cardiac arrest from drowning is hypoxic in origin, start with 5 initial rescue breaths (if trained) before compressions, and emphasize ventilations throughout
- Pulse check (lay rescuer): Lay rescuers do NOT check for a pulse; healthcare providers may check for ≤10 seconds (carotid in adult/child, brachial in infant)
- Adult definition: Adolescent (puberty and older) and adult: 30:2 single rescuer, 30:2 two-rescuer
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Other CPR/AED Domains
- 1.0 Introduction and Chain of Survival
- 2.0 Assessment and Recognition
- 4.0 Child and Infant CPR
- 5.0 AED Operation
- 6.0 Choking and Airway Obstruction
- 7.0 Special Situations and Recovery
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