4 rhythms

Non-shockable

• Asystole
• PEA

*high quality CPR + early reversal of 5H5T are most important

Shockable

• !pVT
• VF ECG

Reversible Causes

• 5 Hs
  • BP → !Hypovolemia ↓
  • Temperature → Hypothermia
  • O2 → Hypoxia
  • H → Metabolic Acidosis / Respiratory Acidosis
  • K → !Hyperkalemia - ↑K (> 5) / Hypokalemia - ↓K (<3.5)
• 5 Ts
  • Thrombosis
    • !PE - Pulmonary embolism
    • !MI
  • !Cardiac Tamponade
  • Toxin Toxidrome (OD), poisons
  • !TPTX