Background: Effective recognition and management of stressful obstetrical emergencies by healthcare providers are vital for achieving the best possible clinical outcomes. Thus, improving nurses' practice in these critical situations is imperative. Aim: to evaluate the effect of advanced nursing management guidelines on nurses' practices regarding emergency obstetrical care. Design: Quasi experimental (pre and posttest). Setting: Obstetrical and Gynecological Department in one of the hospitals in Ismailia city. Subjects: included 50 nurses. Tools: Two tools were used: 1st tool: Personal data of the studied nurses, 2nd tool: Nurses' Practices Observational Checklist. Results: Implementation of the guidelines led to a highly statistically significant and immediate improvement in nurses' practice concerning obstetrical emergencies, with this positive effect persisting after one month (p=0.000). Conclusion: Implementing of emergency obstetric guidelines had a positive effect on the practice of nurses who worked in Emergency Obstetric and Gynecologic Department. Recommendations: The study recommended regular updates to nursing staff training to improve their practical skills in managing obstetrical emergencies.