This OPENPediatrics webinar highlights the critical role of carbon dioxide monitoring in pediatric care, emphasizing its utility for timely problem identification and intervention in critically ill children. Key uses include verification of endotracheal or tracheostomy tube placement, monitoring ventilation adequacy, and detecting life-threatening events (e.g., apnea, severe airway obstruction). Proper use and interpretation of CO₂ data can significantly aid clinicians in delivering effective and responsive care.