This dissertation explores key indicators for the successful weaning of patients from Renal Replacement Therapy (RRT) in the Intensive Care Unit (ICU). Addressing the complications associated with RRT, the study emphasizes the importance of evidence-based strategies and timely initiation. Acute kidney injury affects a substantial number of individuals, leading to a significant need for RRT in critical cases. The research underscores the risks and potential adverse effects of prolonged RRT, emphasizing the need to identify the optimal time for discontinuation to prevent negative consequences. The methodology involves a systematic review and meta- analysis, examining existing literature to identify markers and predictors of successful RRT weaning. The results highlight urine output as a key variable, supported by multiple studies indicating its significance in predicting successful RRT discontinuation. The study also explores the roles of creatinine levels and diuretic therapy, offering a comprehensive overview of factors influencing the decision to wean patients from RRT. The study synthesizes findings, emphasizing the lack of consensus on certain indicators while underscoring the prominence of urine output. The conclusion highlights the importance of collaborative efforts among healthcare professionals, particularly critical care nursing, in monitoring patients and determining the optimal time for discontinuing RRT. Recommendations include the development of personalized guidelines, continuous education for healthcare teams, and regular monitoring of kidney function and fluid balance. In summary, this dissertation contributes insights into indicators for successful RRT weaning in the ICU, offering guidance for healthcare professionals to enhance patient outcomes and improve the quality of care in critical settings.