What interventions are used for a pulseless electrical activity (PEA) arrest?

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In a pulseless electrical activity arrest, the priority is immediate, coordinated resuscitation while quickly addressing reversible causes. Activating the code pulls in the full resuscitation team to perform high‑quality CPR, airway management, defibrillation if a shockable rhythm appears, and medications such as epinephrine. Simultaneously calling the urgent rapid-response team brings extra hands, equipment, and expertise to identify and treat underlying problems (like hypoxia, hypovolemia, acidosis, tamponade, tension pneumothorax, electrolyte disturbances, or toxins) and to facilitate transition to higher levels of care. Because PEA is time‑critical and multifactorial, activating both the code and the urgent rapid-response team provides the most comprehensive and effective support. Shock is not indicated unless the rhythm becomes a shockable one.