Code Blue Cardiac Arrest, ACLS Protocols & Team Dynamics

A disorganized, chaotic cardiac rhythm originating from multiple ventricular foci resulting in quiver without mechanical cardiac output, requiring immediate defibrillation.

A rapid, wide-complex regular ventricular rhythm exceeding 100-150 BPM that fails to generate palpable arterial pulse and cardiac output.

The complete absence of electrical and mechanical cardiac activity, represented as a flatline on the monitor, treated with CPR and epinephrine without defibrillation.

A clinical condition where an organized cardiac electrical rhythm appears on the monitor but no palpable arterial pulse or tissue perfusion exists.

Abnormal, gasping, labored respiratory efforts caused by brainstem ischemia during cardiac arrest, frequently misinterpreted by laypersons as normal breathing.

The proportion of total resuscitation time spent performing active chest compressions, with international guidelines recommending a target of at least 80 percent.

Allowing the chest wall to completely expand back to normal anatomical position between compressions, maximizing negative intrathoracic pressure and coronary venous return.

Continuous real-time measurement of exhaled carbon dioxide tension, serving as the gold standard indicator of CPR compression quality and early ROSC.

An acoustic pacing signal set to 110 beats per minute guiding compressors to maintain optimal rhythmic compression cadence.

The mandatory rotation of the chest compressor every two minutes or five cycles to prevent rescuer fatigue and sustain depth.

An electronic medical device that passes electrical current bidirectionally between electrode pads, terminating ventricular fibrillation with lower energy.

The clinical selection of electrical energy delivered in Joules according to device manufacturer recommendations and cardiac rhythm.

The delivery of a timed electrical shock synchronized with the peak of the QRS complex (R-wave) to terminate unstable tachyarrhythmias without causing VFib.

The transmission of repetitive electrical impulses through anterior-posterior dermal pads to stimulate cardiac depolarization in symptomatic bradycardia.

The mandatory standardized verbal confirmation ensuring that all personnel and oxygen sources are physically detached from the patient prior to shock discharge.

A potent alpha and beta-adrenergic agonist that produces peripheral vasoconstriction, increasing coronary and cerebral perfusion pressure during CPR.

A Class III antiarrhythmic agent prolonging myocardial action potential duration and refractory period, indicated for shock-refractory VFib/pVT.

The insertion of a specialized rigid hollow needle into the non-collapsible bone marrow cavity for rapid infusion of resuscitation fluids and emergency drugs.

A systemic alkalinizing agent indicated during cardiac arrest specifically for documented severe metabolic acidosis, hyperkalemia, or tricyclic antidepressant overdose.

An intravenous electrolyte salt that antagonizes the toxic cardiac membrane excitability effects of severe hyperkalemia or calcium channel blocker overdose.

The resumption of sustained spontaneous mechanical cardiac contraction and perfusion detected by palpable central pulses, arterial waveform, and capnography surge.

A neuroprotective post-cardiac arrest protocol maintaining core body temperature strictly between 32 and 36 degrees Celsius to minimize secondary brain ischemia.

The multi-step clinical confirmation of tube placement in the trachea via continuous waveform capnography, bilateral breath sounds, and gastric silence.

The hemodynamic titration of IV fluids and vasopressors post-ROSC to guarantee a minimum MAP of 65 millimeters of mercury for vital organ perfusion.

A handheld positive-pressure ventilation device delivering high-concentration supplemental oxygen via airtight facial mask prior to advanced airway insertion.

The clinical mnemonic categorizing the ten most common reversible etiologies of cardiac arrest: Hypovolemia, Hypoxia, Hydrogen ion, Hypo/Hyperkalemia, Hypothermia, Tension pneumo, Tamponade, Toxins, Thrombosis PE/MI.

The designated physician or advanced nurse specialist who oversees global resuscitation strategy, orchestrates team roles, and maintains situational awareness.

The vocal pattern where the leader gives a directive, the responder repeats the exact order, and announces completion once executed.

The emergency insertion of a large-bore needle into the pleural space to release pressurized intrathoracic air collapsing the vena cava during PEA arrest.

A formal interprofessional team meeting immediately post-arrest to analyze quantitative CPR metrics, celebrate successes, and implement process improvements.