Adult Cardiac Arrest Algorithm (Including VF/pVT)
Note: This document provides a structured summary of the Adult Cardiac Arrest Algorithm, including management of VF/pVT, for educational and reference purposes. It is not a substitute for certified ACLS training and adherence to the latest guidelines published by the American Heart Association (AHA) or other relevant governing bodies. Always consult the most current official guidelines.
Verify scene safety, check for responsiveness/breathing, activate EMS, get AED/defibrillator, begin high-quality CPR.
Attach monitor/defibrillator. Is the rhythm shockable (VF/pVT)?
Deliver Shock 1 (Biphasic: 120-200J or mfr rec; Monophasic: 360J). Immediately resume CPR.
Perform high-quality CPR for 2 minutes. Gain IV/IO access. Assess rhythm after 2 mins.
Check rhythm and pulse (if organized rhythm).
Deliver Shock 2 (same or higher energy). Immediately resume CPR 2 min. Administer Epinephrine 1mg IV/IO.
Perform high-quality CPR for 2 minutes. Consider advanced airway/capnography. Assess rhythm after 2 mins.
Check rhythm and pulse (if organized rhythm).
Deliver Shock 3 (same or higher energy). Immediately resume CPR 2 min. Administer Amiodarone 300mg IV/IO or Lidocaine.
Perform high-quality CPR for 2 minutes. Administer Epinephrine 1mg IV/IO (every 3-5 mins). Assess rhythm after 2 mins.
Check rhythm and pulse (if organized rhythm).
Repeat Shock, CPR 2 min, Epinephrine (every 3-5 mins), consider Amiodarone 150mg or Lidocaine.
Go to Post-Cardiac Arrest Care.
Go to Non-Shockable branch (Asystole/PEA).
Go to Post-Cardiac Arrest Care.
Go to Non-Shockable branch (Asystole/PEA).
Go to Post-Cardiac Arrest Care.
Go to Non-Shockable branch (Asystole/PEA).
Immediately resume CPR for 2 minutes. Gain IV/IO access. Administer Epinephrine 1mg IV/IO.
Perform high-quality CPR for 2 minutes. Consider advanced airway/capnography. Assess rhythm after 2 mins.
Check rhythm and pulse (if organized rhythm).
Repeat CPR 2 min, Epinephrine (every 3-5 mins). Treat reversible causes.
Go to Shockable branch (VF/pVT) – Step 3.
Go to Post-Cardiac Arrest Care.
Hypoxia, Hypovolemia, Hypothermia, Hypo-/Hyperkalemia, Acidosis, Tamponade, Toxins, Tension pneumothorax, Thrombosis (coronary/pulmonary).
Check for pulse and signs of circulation.
Go to Post-Cardiac Arrest Care.
Continue CPR. Consider terminating resuscitation based on guidelines and clinical judgment.
