This report presents a critical analysis of a quantitative research study conducted in South Korean general acute hospitals. The study investigated the impact of nurse staffing, work environments, and nurse education on patient mortality rates. The researcher used questionnaires to gather data from nurses, alongside patient and hospital records. The analysis employed descriptive statistics and logistic regression models. The findings indicated a positive correlation between nurse staffing, work environment, nurse training and patient mortality. The report evaluates the study's methodology, results, and ethical considerations, highlighting limitations such as a small sample size and potential biases. The critique also discusses the implications of the findings for nursing practice and the need for further research.