This assignment delves into the crucial topic of pressure ulcer risk assessment and prevention. It critically evaluates prominent pressure ulcer risk assessment scales such as the Braden Scale, Norton Scale, and Waterlow Scale, analyzing their predictive validity and limitations. The document explores the relationship between various factors like hyponatremia, low blood pressure, executive dysfunction, and frontal lobe blood flow with pressure ulcer development in diverse patient populations. It highlights the importance of comprehensive risk assessment strategies and evidence-based interventions for effective pressure ulcer prevention.