BLS Adult, Child & Infant Resuscitation 5 — Questions and Answers
Question 1: A rescuer is providing CPR to an adult and becomes fatigued. How often should rescuers switch roles to maintain compression quality?
- Every 5 minutes
- Every 10 minutes
- Every 2 minutes (approximately 5 cycles) (Correct answer)
- Only when the primary rescuer requests a switch
Correct answer: Every 2 minutes (approximately 5 cycles)
Rescuers should switch the compressor role every 2 minutes (5 cycles) to prevent fatigue and maintain high-quality compressions.
Question 2: What does 'allow full chest recoil' mean in the context of CPR?
- Push harder on each compression to maximize depth
- Let the chest completely return to its natural position after each compression (Correct answer)
- Keep light pressure on the chest between compressions
- Count to two between each compression
Correct answer: Let the chest completely return to its natural position after each compression
Full recoil means removing all pressure so the chest returns fully to its resting position, allowing the heart to refill with blood.
Question 3: An infant is found pulseless and not breathing. The rescuer is alone. What is the correct compression-to-ventilation ratio?
- 15:2
- 30:1
- 30:2 (Correct answer)
- 15:1
Correct answer: 30:2
A single rescuer uses a 30:2 ratio for infant CPR, switching to 15:2 only when a second rescuer is available.
Question 4: Which of the following is a sign that CPR is effective?
- The victim begins moving their limbs voluntarily
- Visible chest rise with each rescue breath and palpable pulse with compressions (Correct answer)
- The victim's skin color immediately returns to normal
- The AED advises 'no shock needed'
Correct answer: Visible chest rise with each rescue breath and palpable pulse with compressions
Signs of effective CPR include visible chest rise with each ventilation and a palpable carotid or femoral pulse felt during compressions.
Question 5: When is it appropriate to stop CPR once started?
- After 10 minutes of unsuccessful resuscitation
- When the scene becomes unsafe, advanced providers take over, or the victim shows signs of life (Correct answer)
- After 5 cycles if there is no response
- Only when a physician arrives and declares the victim
Correct answer: When the scene becomes unsafe, advanced providers take over, or the victim shows signs of life
BLS rescuers should continue CPR until the scene becomes unsafe, trained advanced providers assume care, an AED advises a shock, or the victim shows obvious signs of life.
Question 6: A rescuer arrives at a scene and finds an adult who is unresponsive. The rescuer suspects an opioid overdose. What action should be taken if naloxone is available?
- Administer naloxone before beginning CPR
- Begin CPR first, then administer naloxone if available without interrupting CPR significantly (Correct answer)
- Withhold naloxone and perform CPR only
- Administer naloxone and wait 5 minutes before starting CPR
Correct answer: Begin CPR first, then administer naloxone if available without interrupting CPR significantly
CPR should be started immediately; naloxone can be administered by a second rescuer without significantly interrupting CPR.
Question 7: Which pulse site is recommended when checking for a pulse in an adult or child victim?
- Radial pulse at the wrist
- Carotid pulse in the neck (Correct answer)
- Brachial pulse in the upper arm
- Femoral pulse in the groin
Correct answer: Carotid pulse in the neck
The carotid pulse is the recommended site for adults and children because it remains palpable even with very low blood pressure.
BLS Adult, Child & Infant Resuscitation 5
A rescuer is providing CPR to an adult and becomes fatigued.
How often should rescuers switch roles to maintain compression quality?