This case study analyzes the professional nursing practice of a registered nurse in the care of an 81-year-old patient admitted to the hospital with breathlessness and other symptoms. The case study details the patient's declining health, the nurse's actions, and the eventual diagnosis of a urinary tract infection that led to septicemia and the patient's death. The assignment critically examines the nursing practices, identifies several professional errors, and discusses how these errors contributed to the patient's deteriorating condition. The analysis references key standards, including the NMBA and NSQHS standards, to evaluate the nurse's actions regarding patient assessment, medication administration, and communication. The study emphasizes the importance of critical thinking, therapeutic relationships, and timely diagnoses in professional nursing practice, concluding with implications for future practice and how the nurse's behaviors could have made a difference in the patient's outcome. The assignment also highlights the need for proper assessment, communication, and adherence to established nursing standards to prevent similar incidents in the future.