Adult ACLS - Cardiac Arrest Algorithm - AHA 2020
CPR Quality:
• Push hard (at least 2 inches [5 cm]) and fast (100-120/min) and allow complete chest recoil.
• Minimize interruptions in compressions.
• Avoid excessive ventilation.
• Change compressor every 2 minutes. or sooner if fatigued.
• If no advanced airway. 30:2 compression-ventilation ratio.
• Quantitative waveform capnography - If PETCO2 is low or decreasing, reassess CPR quality.
Shock Energy for Defibrillation:
• Biphasic: Manufacturer recommendation (eg. initial dose of 120-200 J); if unknown, use maximum available. Second and subsequent doses should be equivalent. and higher doses may be considered.
• Monophasic: 360 J
Drug Therapy:
• Epinephrine IV/IO dose: 1 mg every 3-5 minutes
• Amiodarone IV/IO dose: First dose: 300 mg bolus, Second dose: 150 mg OR
• Lidocaine IVIIO dose: First dose: 1-1.5 mg/kg, Second dose: 0.5-0.75 mg/kg.
Advanced Airway:
• Endotracheal intubation or supraglottic advanced airway
• Waveform capnography or capnometry to confirm and monitor ET tube placement
• Once advanced airway in place, give 1 breath every 6 seconds (10 breaths/min) with continuous chest compressions
Return of Spontaneous Circulation (ROSC):
• Pulse and pressure
• Abrupt sustained increase in PETCO2 (typically 240 mm Hg)
• Spontaneous arterial pressure waves with intra-arterial
Reversible Causes:
• Hypovolemia, Hypoxia, Hydrogen ion (acidosis), Hypo/hyper-kalemia, Hypothermia
• Tension pneumothorax, Tamponade (cardiac), Toxins, Thrombosis, (pulmonary), Thrombosis (coronary)
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