The Ultimate PALS Study Guide

Pediatric Advanced Life Support (PALS) is an advanced resuscitation program designed for healthcare professionals who care for critically ill or injured infants and children. It provides a structured approach to assessing, stabilizing, and treating pediatric emergencies using evidence-based guidelines.

Unlike Basic Life Support (BLS), which focuses primarily on CPR and AED use, PALS emphasizes early recognition of clinical deterioration so treatment can begin before cardiac arrest occurs.

PALS addresses four major pediatric emergencies:

• Airway and breathing emergencies
• Shock
• Cardiac arrhythmias
• Cardiac arrest

In addition to medical knowledge, PALS teaches providers how to communicate effectively and function as part of a coordinated resuscitation team.

High-quality CPR remains the foundation of pediatric resuscitation and significantly improves survival. Effective chest compressions maintain blood flow to the brain and heart until normal circulation can be restored.

The American Heart Association recommends:

• Compression rate: 100–120 compressions per minute
• Compression depth: One-third of the chest’s anterior-posterior diameter (about 2 inches or 5 cm in children)
• Compression ratio:
  • 30:2 for a single rescuer
  • 15:2 for two healthcare providers

Quality CPR also requires:

• Complete chest recoil
• Minimal interruptions
• Avoiding excessive ventilation
• Rotating compressors every two minutes to reduce fatigue

Delivering consistent, high-quality CPR is one of the most important factors influencing survival from pediatric cardiac arrest.

PALS algorithms provide healthcare professionals with standardized pathways for managing pediatric emergencies. Following these algorithms helps providers make rapid, evidence-based decisions during high-stress situations.

The primary algorithms include:

Pediatric Cardiac Arrest Algorithm

Guides providers through CPR, rhythm identification, defibrillation, medication administration, and post-resuscitation care.

Pediatric Bradycardia With Pulse Algorithm

Used when a child has a slow heart rate with poor perfusion despite adequate oxygenation and ventilation.

Pediatric Tachycardia With Pulse Algorithm

Helps differentiate stable from unstable tachycardia and guides treatment using vagal maneuvers, medications, or synchronized cardioversion.

Pediatric Septic Shock Algorithm

Focuses on early recognition of sepsis, rapid fluid administration, antibiotic therapy, vasoactive medications, and ongoing reassessment.

Post-Resuscitation Care Algorithm

Provides guidance for managing patients after return of spontaneous circulation (ROSC), including oxygenation, ventilation, blood pressure support, temperature management, and neurological monitoring.

Successful pediatric resuscitation is based on several core principles that guide every intervention.

Early Recognition

Most pediatric cardiac arrests are preventable if respiratory failure or shock is recognized and treated early.

High-Quality CPR

Provide effective chest compressions with proper rate, depth, and minimal interruptions.

Effective Communication

Clear communication reduces errors and improves coordination during emergencies.

Appropriate Interventions

Use medications, airway management, defibrillation, and fluid therapy based on the patient’s condition.

Continuous Reassessment

Patient conditions can change rapidly. Reassess airway, breathing, circulation, and response to treatment throughout the resuscitation.

The ABCDE assessment helps healthcare providers rapidly identify and manage life-threatening problems while treatment is occurring.

A – Airway

Ensure the airway is open and free from obstruction.

Interventions include:

• Head tilt–chin lift
• Jaw thrust if spinal injury is suspected
• Suction secretions
• Airway adjuncts when indicated

B – Breathing

Assess:

• Respiratory rate
• Chest expansion
• Breath sounds
• Oxygen saturation
• Provide supplemental oxygen or assisted ventilation if necessary.

C – Circulation

Evaluate:

• Heart rate
• Pulses
• Capillary refill
• Blood pressure
• Skin color
• Establish IV or IO access and administer fluids or medications as indicated.

D – Disability

Perform a rapid neurological assessment using:

• AVPU scale
• Glasgow Coma Scale (GCS)
• Pupillary response
• Blood glucose measurement when appropriate

E – Exposure

Completely expose the patient to identify injuries or rashes while preventing hypothermia.

The Pediatric Assessment Triangle (PAT) allows providers to evaluate a child’s condition within 30 to 60 seconds without physical contact.

Appearance (TICLS)

Assess:

• Tone
• Interactiveness
• Consolability
• Look or gaze
• Speech or cry

Abnormal findings may indicate poor brain perfusion or respiratory compromise.

Work of Breathing

Observe for:

• Stridor
• Wheezing
• Grunting
• Retractions
• Nasal flaring
• Head bobbing
• Tripod positioning

These signs indicate increasing respiratory effort.

Circulation to Skin

Look for:

• Pallor
• Mottling
• Cyanosis

Abnormal skin findings may suggest poor perfusion or shock.

The Pediatric Assessment Triangle helps determine whether the child is experiencing respiratory distress, respiratory failure, shock, or cardiopulmonary failure before initiating more detailed assessments.

Children require different treatment approaches based on their age and size.

Infants

Patients younger than one year require specialized CPR techniques, equipment sizes, and medication dosages.

Children

Children between one year and puberty require age-appropriate airway equipment, defibrillation energy levels, and weight-based medications.

Always remember:

• Drug dosages are weight-based.
• Equipment should match the patient’s size.
• CPR technique varies with age.
• Pediatric defibrillator pads should be used whenever available.

Once life-threatening problems have been addressed, perform a focused history and physical examination to determine the underlying cause of the emergency.

SAMPLE History

Gather information using the SAMPLE mnemonic:

• S – Signs and symptoms
• A – Allergies
• M – Medications
• P – Past medical history
• L – Last oral intake
• E – Events leading up to the illness or injury

Focused Physical Examination

Assess:

• Head and neck
• Chest
• Abdomen
• Extremities
• Skin

The secondary assessment helps guide further treatment and identify contributing conditions.

Continuous monitoring allows providers to evaluate treatment effectiveness and detect changes in the patient’s condition.

Common diagnostic tools include:

ECG Monitoring

Detects cardiac rhythm abnormalities and guides treatment.

Pulse Oximetry and Capnography

Monitor oxygenation and ventilation.

Blood Tests

Evaluate glucose, electrolytes, blood gases, infection markers, and other laboratory values.

Imaging Studies

Chest X-rays, ultrasound, or CT imaging may identify respiratory disease, trauma, or internal injuries.

Shock occurs when tissues receive inadequate oxygen and blood flow.

The four major types include:

Hypovolemic Shock

Usually caused by dehydration, hemorrhage, or burns.

Distributive Shock

Includes septic, anaphylactic, and neurogenic shock.

Cardiogenic Shock

Results from impaired heart function such as myocarditis or congenital heart disease.

Obstructive Shock

Occurs when blood flow is physically obstructed by conditions such as cardiac tamponade or tension pneumothorax.

Key Interventions

Treatment priorities include:

• Early recognition
• Rapid IV or IO access
• Isotonic fluid resuscitation when appropriate
• Vasopressor or inotropic support if needed
• Treating the underlying cause

Prompt intervention before hypotension develops greatly improves patient outcomes.

Effective teamwork is essential during pediatric resuscitation.

Strong team dynamics improve CPR quality, reduce delays, and enhance patient safety.

Key components include:

Leadership

The team leader assigns responsibilities, monitors performance, and coordinates care.

Closed-Loop Communication

Every instruction should be acknowledged and confirmed to reduce misunderstandings.

Role Assignment

Each provider should have a clearly defined responsibility, such as:

• Chest compressor
• Airway manager
• Medication provider
• Defibrillator operator
• Recorder
• Team leader

Situational Awareness

Team members should remain aware of changes in patient status and anticipate upcoming interventions.

Knowledge Sharing

Communicate patient updates and important findings with the entire team.

Post-Code Debriefing

After every resuscitation, review what went well and identify opportunities for improvement.

Immediate recognition and intervention are essential during pediatric cardiac arrest.

The basic sequence includes:

1. Check responsiveness.
2. Activate the emergency response system.
3. Assess breathing and pulse.
4. Begin high-quality CPR immediately if indicated.
5. Perform compressions at 100–120 per minute.
6. Deliver rescue breaths using the appropriate compression-to-ventilation ratio.
7. Attach an AED or monitor as soon as possible.
8. Follow shock recommendations if indicated.
9. Reassess pulse and rhythm every two minutes.
10. Continue CPR until return of spontaneous circulation (ROSC) or advanced providers assume care.

Early CPR combined with rapid defibrillation when indicated provides the best chance of survival.

Before your certification exam, review these essential concepts:

• Pediatric Assessment Triangle (PAT)
• ABCDE primary assessment
• Recognition and treatment of respiratory distress and respiratory failure
• Types of pediatric shock and appropriate interventions
• High-quality pediatric CPR
• Bradycardia and tachycardia algorithms
• AED and defibrillation principles
• Weight-based medication administration
• Effective team communication and leadership

Understanding these concepts—not simply memorizing algorithms—will help you respond confidently during pediatric emergencies and perform successfully on the PALS certification exam.