This essay examines a case study involving a nurse named Mary and her professional conduct within a healthcare setting. It delves into the core components of therapeutic interpersonal relationships and their significance in enhancing patient-clinician experiences, emphasizing the role of the Nursing and Midwifery Board of Australia (NMBA) and the Registered Nurse Standards for Practice. The essay analyzes Mary's practices, highlighting areas where she fails to meet the required standards, particularly in applying person-centered and evidence-based care. It discusses the importance of ethical conduct, adherence to the NMBA Code of Conduct, and the benefits of therapeutic relationships in improving patient outcomes. The essay emphasizes the need for corrective actions by Mary's colleagues and supervisors to address her unethical behaviors and ensure the delivery of safe, quality care, as well as the importance of the patient's wellbeing.