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Step-by-step treatment algorithms

The algorithm covers critical aspects such as the recognition of:

  1. Cardiac arrest
  2. Activation of emergency response
  3. Assessment of the child’s condition
  4. Effective, high-quality chest compressions
  5. Proper airway management
  6. Use of automated external defibrillators when appropriate
Pediatric BLS algorithm flowchart for child emergency response

Whether responding alone or with a partner, this comprehensive guide details step-by-step pediatric life support for infants through adolescents, covering scene safety, patient assessment, rescue breaths, CPR, AED use, and continuous care, ensuring effective intervention until advanced medical help arrives.

Below are the two approaches in the Pediatric BLS algorithm:

Pediatric BLS for a single rescuer focuses on quickly recognizing emergencies, activating help, and performing effective chest compressions and rescue breaths. This ensures the child receives immediate care with confidence.

  • Evaluate the environment for potential hazards, including fire, electrical sources, or other dangers.

  • Approach the patient only when the surroundings are secure.

  • Gently tap the child’s shoulders and call out to assess consciousness.

  • If there is no response, call for assistance and immediately contact emergency services.

  • Assess both breathing and pulse simultaneously, limiting the check to 10 seconds.

  • Identify whether breathing is normal, abnormal (gasping), or absent, and determine if a pulse is present.

  • If breathing is normal with a palpable pulse, maintain airway alignment and monitor continuously.

  • Observe respiratory effort and circulation while staying alert for any changes in condition.

  • Open the airway using a head-tilt–chin-lift maneuver.

  • Provide one breath every 2-3 seconds (20-30 per minute), ensuring a visible chest rise.

  • Reassess the pulse every 2 minutes and administer naloxone if an opioid overdose is suspected.

  • Initiate chest compressions immediately.

  • For infants, use two fingers on the center of the chest; for older children, use the heel of one or both hands.

  • Apply a 30:2 compression-to-ventilation ratio, maintain correct depth and rate (100-120/min), allow full chest recoil, and minimize interruptions.

  • Apply the AED promptly and follow device instructions carefully.

  • For witnessed collapses, apply the AED immediately; if alone and unwitnessed, perform 2 minutes of CPR before retrieving the AED.

  • Pause only for rhythm analysis and resume CPR immediately after delivering a shock for shockable rhythms.

  • Continue CPR, ventilation, and rhythm assessment until the child shows signs of life or advanced care arrives.

  • Maintain consistent technique and provide a structured handover to arriving professionals.

When two or more rescuers work together, Pediatric BLS can be performed faster and more effectively. Team coordination ensures high-quality CPR, timely AED use, and improved chances of survival for the child.

  • Ensure the environment is safe for both rescuers and the patient.

  • Assign tasks: one rescuer stays with the patient, the other retrieves the AED and prepares for compressions.

  • Check responsiveness by tapping the child and calling out.

  • Summon additional help and assign the AED retrieval task to the second rescuer immediately.

  • Evaluate breathing and pulse together within 10 seconds.

  • Classify as normal, abnormal with pulse, or absent to guide immediate intervention.

  • For patients with adequate breathing and pulse, maintain the airway and monitor closely.

  • Be prepared to escalate care if signs of deterioration appear.

  • Open and position the airway effectively.

  • Give one breath every 2-3 seconds, ensuring chest rise is visible.

  • Reassess pulse every 2 minutes and administer opioid antagonists if indicated.

  • Begin compressions immediately.

  • For infants, compress using two fingers at the center of the chest; for older children, use the heel of one or both hands.

  • Start with 30:2 cycles, then switch to 15:2 once the second rescuer joins.

  • Ensure correct compression depth and rate, allow full chest recoil, and reduce interruptions.

  • Apply AED pads and follow prompts carefully.

  • Pause only for rhythm analysis, ensuring no one is touching the patient.

  • Deliver shock for shockable rhythms and resume CPR immediately.

  • For shockable rhythms (VF or pulseless VT), give one shock and resume CPR for 2 minutes.

  • For non-shockable rhythms (Asystole or PEA), continue CPR uninterrupted for 2 minutes before reassessment.

  • Reassess rhythm every 2 minutes and coordinate rescuer switches to maintain high-quality compressions.

  • Maintain cycles of CPR, ventilation, and rhythm checks until return of spontaneous circulation, movement, or advanced care takes over.

  • Ensure clear communication and structured handover between rescuers and healthcare professionals.

AEDs can save children’s lives when used promptly. Pediatric pads are preferred for children under 8 years or 25 kg. Proper pad placement, following AED prompts, and immediate action ensure safe and effective defibrillation.

Essential Guidelines:

  • AEDs are effective for both adults and children and can save a child’s life.

  • For children under 8 years old or weighing less than 55 lbs (25 kg), use pediatric AED pads if available.

  • Place one pad on the center of the chest (anterior) and the other on the center of the back (posterior).

  • If pediatric pads are not available, use adult pads, because acting promptly is more important than waiting.

  • Most AEDs automatically adjust shock energy when pediatric pads are used.

  • If only adult pads are available, attach them as directed, and the AED will guide you step by step.

Mistakes can happen even for trained professionals under pressure, but being aware of common errors significantly improves CPR effectiveness and patient outcomes.

Essential Tips:

  • Performing compressions that are too shallow or incorrectly positioned.

  • Giving rescue breaths too quickly or with excessive force.

  • Delaying CPR while waiting for help or equipment.

  • Failing to switch roles during two-rescuer CPR can lead to fatigue and reduced compression quality.

Here are the top expert tips for a confident, error-free CPR response:

  • Use feedback manikins during training to monitor compression depth, rate, and ventilation quality.

  • Conduct regular simulation drills that replicate real-life cardiac emergencies to practice coordination and decision-making.

  • Stay current with the latest AHA guidelines and complete recertification or refresher courses as recommended.

  • Rehearse frequently to build muscle memory, ensuring that high-quality CPR and AED use become second nature under pressure.

Note: Confidence in emergencies comes from consistent practice, feedback, and familiarity with proper techniques.

The Pediatric Basic Life Support (BLS) Algorithm provides a clear, step-by-step guide for managing cardiac arrest and other life-threatening emergencies in infants and children. Learning these life-saving skills enables you to act quickly and confidently when every second counts. Using an Automated External Defibrillator (AED), performing effective CPR, and providing rescue breaths can significantly improve a child’s chance of survival until professional help arrives. Whether you are a parent, caregiver, or healthcare professional, mastering PALS skills and understanding the pediatric algorithm is essential for handling emergencies. CPR VAM, an AHA-authorized training provider, offers trusted courses to build your confidence and enhance your life-saving skills.

The correct sequence for pediatric BLS follows the CAB approach: Circulation, Airway, and Breathing. This means starting with chest compressions to maintain blood flow, then opening the airway, and finally giving rescue breaths. Following this order helps provide timely and effective care during a pediatric emergency.

Cardiac arrest in a child or infant may be sudden or follow worsening illness. Key signs include unresponsiveness, no normal breathing or only gasping, and absence of a detectable pulse. Other warning signs may include pale or bluish skin, limpness, or sudden collapse. Early recognition is critical so that CPR and emergency care can be started immediately.

For children, chest compressions should be at a rate of 100–120 per minute and about 1/3 the depth of the chest (approximately 5 cm or 2 inches). For infants, compressions should also be 100–120 per minute and about 1/3 the chest depth (approximately 4 cm or 1.5 inches). Allow the chest to fully recoil between compressions to maximize blood flow.

A single rescuer should check responsiveness, call for help, open the airway, and start CPR with 30 chest compressions followed by 2 breaths until help arrives or the child recovers.

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