Final answer:
It is true that nurses need to know the Nursing Practice Act and Rules and Regulations as it defines their scope of practice, ensuring patient safety and professional accountability.
Step-by-step explanation:
It is indeed true that it is a nurse's responsibility to know the NPA (Nursing Practice Act) and the associated Rules and Regulations. This legal framework outlines the scope of practice, standards of care, and other professional responsibilities that are crucial for the safe and effective practice of nursing. Understanding and adhering to these regulations are fundamental to ensuring patient safety, maintaining professional accountability, and avoiding legal issues that may arise from nursing practice.