This document outlines key differences in paediatric and adult physiology and provides guidance on assessing and caring for paediatric patients. It describes smaller airways, reliance on diaphragmatic breathing, and higher metabolic needs in paediatric patients. It also provides mnemonics (TICLS, FLACC, CIAMPEDS) and guidelines for assessing vital signs, pain, history, and monitoring weight and IV fluids in the paediatric population. Routine assessments include weight, pulse, respiration, temperature, and blood pressure measured according to age-appropriate norms.