pediatric advanced life support jan bazner-chandler cpnp, cns, msn, rn
TRANSCRIPT
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Pediatric Advanced Life Support
Jan Bazner-Chandler
CPNP, CNS, MSN, RN
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American Heart Association
Pediatric Advanced Life Support Guidelines first published in 1997 Revisions made in 2005
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Students Nurse Concerns
You will need to learn the basics as outlined in the PALS 2005 Guidelines
AHA guidelines are expected standards of a practicing pediatric nurse.
You will need to know basic CPR guidelines and have a current CPR card prior to starting the clinical rotation.
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Cardiopulmonary Arrest
In most infants and small children respiratory arrest precedes cardiac arrest.
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Causes of Cardiac Arrest in Children Bronchospasm / respiratory infection Burns Drowning Dysrhythmias Foreign Body Aspiration Gastroenteritis (vomiting and diarrhea) Sepsis Seizures Trauma
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Pediatric Cardiac Arrest
Pediatric cardiopulmonary arrest results when respiratory failure or shock is not identified and treated in the early stages.
Early recognition and intervention prevents deterioration to cardiopulmonary arrest and probable death.
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Cardiac Arrest
Pediatric cardiac arrest is: Uncommon Rarely sudden cardiac arrest caused by primary
cardiac arrhythmias. Most often asphyxial, resulting from the
progression of respiratory failure or shock or both.
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RespiratoryFailure
Hypotensive Shock
Cardiopulmonary Failure
Asphyxial Arrest
Upper airway obstructionLower airway obstructionLung tissue disease / infectionDisorders of breathing
Hypovolemic (most common)Distributive: septic, anaphylacticCardiogenicObstructive
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Respiratory Arrest
Early recognition and intervention prevents deterioration to cardiopulmonary arrest and probable death.
Only 10% of children who progress to cardiopulmonary arrest are successfully resuscitated.
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Respiratory Failure
A respiratory rate of less than 10 or greater than 60 is an ominous sign of impending respiratory failure in children.
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Assessment
30 second rapid cardiopulmonary assessment is structured around ABC’s.
Airway Breathing Circulation
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Breathing
Breathing is assessed to determine the child’s ability to oxygenate.
Assessment: Respiratory rate Respiratory effort Breath sounds Skin color
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Airway
Airway must be clear and patent for successful ventilation.
Position Suction Administration of oxygen Bag-mask ventilation
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Bag-valve-mask
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New Guidelines – Airway Management Failure to maintain the airway is leading
cause of preventable death in children. New PALS focuses on basic airway
techniques. Laryngeal mask airway.
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LMA –Laryngeal Mask Airway
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Endotracheal Tube Intubation New guidelines:
Secondary confirmation of tracheal tube placement.
Use of end-tidal carbon dioxide monitor or colorimetric device
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Circulation
Circulation reflects perfusion.
Shock is a physiologic state where delivery of oxygen and substrates are inadequate to meet tissue metabolic needs.
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Circulation Assessment
Heart rate (most accurate assessment) Blood pressure End organ profusion
Urine output (1-2 mL / kg / hour) Muscle tone Level of consciousness
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Circulatory Assessment
Heart rate is the most sensitive parameter for determining perfusion and oxygenation in children.
Heart rate needs to be at least 60 beats per minute to provide adequate perfusion.
Heart rate greater than 140 beats per minute at rest needs to be evaluated.
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Blood Pressure
25% of blood volume must be lost before a drop in blood pressure occurs.
Minimal changes in blood pressure in children may indicate shock.
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Vascular Access – New Guidelines New guidelines: in children who are six years
or younger after 90 seconds or 3 attempts at peripheral intravenous access – Intraosseous vascular access in the proximal tibia or distal femur should be initiated.
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Intraosseous Access
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IV Solutions
Crystalloid solution
Normal saline 20ml/kg bolus over 20 minutes
Lactated ringers
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Gastric Decompression
Gastric decompression with a nasogastric or oral gastric tube is necessary to ensure maximum ventilation.
Air trapped in stomach can put pressure on the diaphragm impeding adequate ventilation.
Undigested food can lead to aspiration.
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Accurate Output
Insert foley Output 1-2 mL / kg / hour
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Cardiopulmonary Failure
Child’s response to ventilation and oxygenation guides further interventions.
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Arrhythmias
Bradycardia Pulseless Arrest – ventricular fibrillation Asystole – no pulse Tachycardia with poor perfusion Tachycardia with adequate perfusion
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Bradycardia
The most common dysrhythmia in the pediatric population.
Etiology is usually hypoxemia Initial management: ventilation and
oxygenation. If this does not work IV or IO epinephrine 0.1
mg / kg
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Pulseless Arrest – Asystole
ABC: Start CPR Give oxygen when available Attach monitor / defibrillator Check rhythm / check pulse If asystole give epinephrine 0.01 mg / kg of
1:10,000 Resume CPR may repeat every 3-5 minutes
until shockable rhythm is seen
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Asystole
No RhythmNo rateNo P waveNo QRS comples
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Pulseless Arrest – VF and Pulseless VT ABCs: start CPR Give oxygen as soon as available Attach monitor / defibrillator Check rhythm: VF / VT Give one shock at 2 J/kg If still VF / VT Give 1 shock at 4 J/kg Give Epinephrine 0.01 mg/kg of 1:10,000
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Tachycardia with Adequate Perfusion Sinus tachycardia:
Infants: HR < 220 bpm Children: HR < 180 bpm P waves present and normal
Treatment: give oxygen and treat cause
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Tachycardia with Adequate Perfusion Sinus Ventricular Tachycardia Infants: HR >220 bpm Children: HR > 180 bpm P waves absent of abnormal
Treatment: consider vagal maneuver Give adenosine IV 0.1mg/kg
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InterventionsOxygenCall for codeCardioversionVagal ManeuversAdenosine
Supraventricular Tachycardia
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Tachycardia with poor perfusion Ventricular tachycardia Synchronized cardioversion
First dose: 0.5 to 1 J/kg Next dose: 2 J/kg
Consider: amiodarone 5 mg/kg IV over 30 to 60 minutes
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Ventricular Tachycardia
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New Guideline Epinephrine
Still remains primary drug for treating patients for cardiopulmonary arrest, escalating doses are de-emphasized.
Neurologic outcomes are worse with high-dose epinephrine.
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PALS Drugs
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Epinephrine
Action: increase heart rate, peripheral vascular resistance and cardiac output; during CPR increase myocardial and cerebral blood flow.
Dosing: 0.01 mg / kg 1: 10,0000
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Amiodarone
Used in atrial and ventricular antiarrhythmic Action: slows AV nodal and ventricular
conduction, increase the QT interval and may cause vasodilation.
Dosing: IV/IO: 5 mg / kg bolus
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Adenosine
Drug of choice of symptomatic SVT Action: blocks AV node conduction for a few
seconds to interrupt AV node re-entry Dosing
First dose: 0.1 mg/kg max 6 mg Second dose: 0.2 mg/kg max 12 mg
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Glucose
10% to 25% strength Action: increases glucose in hypoglycemia Dosing: 0.5 – 1 g/kg
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Naloxone
Opiate antagonist Action: reverses respiratory depression
effects of narcotics Dosing: IV/IO
0.1 mg/kg < 5 years 0.2 mg/kg > 5 years
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Sodium bicarbonate
pH buffer for prolonged arrest, hyperkalemia Action: increases blood pH helping to correct
metabolic acidosis
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Dobutamine
Synthetic catecholamine Action: increases force of contraction and
heart rate; causes mild peripheral dilation; may be used to treat shock
Dosing: IV/IO: 2-20 mcg/kg/min infusion
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Dopamine
Catecholamine May be used to treat shock; effects are dose
dependent Increases force of contraction and cardiac
output, increases peripheral vascular resistance, BP and cardiac output
Dosing: IV/IO infusion: 2-20 mcg/kg/min
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Defibrillator Guidelines
AHA recommends that automatic external defibrillation be use in children with sudden collapse or presumed cardiac arrest who are older than 8 years of age or more than 25 kg and are 50 inches long.
Electrical energy is delivered by a fixed amount range 150 to 200. (2-4J/kg)
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Post-resuscitation Care
Re-assessment of status is ongoing. Laboratory and radiologic information is
obtained. Etiology of respiratory failure or shock is
determined. Transfer to facility where child can get
maximum care.