Final answer:
Professional and ethical standards are the universal guidelines that define appropriate measures for all nursing interventions.
Step-by-step explanation:
The universal guidelines that define appropriate measures for all nursing interventions are professional and ethical standards. These standards are developed by professional organizations, such as the American Nurses Association (ANA), and they provide a framework for nurses to deliver safe and competent care to their patients. These standards cover areas like patient rights, confidentiality, communication, infection control, and professional integrity.