This prospective observational cohort study evaluates the association between gastric residual content and volume, assessed by point-of-care gastric ultrasound (PoCUS), and the choice of airway management technique (Rapid Sequence Intubation vs. non Rapid Sequence Intubation) in adult emergency surgical patients at Rumah Sakit Cipto Mangunkusumo (RSCM). Aspiration risk in emergency patients is a critical concern, and this study examines whether objective ultrasonographic findings change clinical decision-making compared to traditional clinical assessment alone.