Clinical meaning
Pediatric Early Warning Score (PEWS) systems provide a standardized framework for recognizing clinical deterioration in hospitalized children. Children compensate for physiologic stress differently than adults — they maintain blood pressure through tachycardia and increased systemic vascular resistance until late decompensation, at which point deterioration is sudden and catastrophic. PEWS assigns numerical scores to parameters including behavior/neurologic status, cardiovascular status (heart rate, capillary refill, skin color), and respiratory status (respiratory rate, effort, oxygen requirement). Rising PEWS scores trigger escalation protocols, enabling early intervention before cardiopulmonary arrest occurs.