Which of the following is the best example of the affective domain?

The best example of the affective domain is defending or respecting a patient's right to refuse care. The affective domain pertains to emotions, attitudes, values, and the ways individuals respond to things emotionally. It encompasses how one feels about certain issues, such as ethical considerations in patient care.

In this context, advocating for a patient's autonomy and right to refuse care demonstrates an understanding and respect for ethical principles and patient rights, which are fundamental aspects of the affective domain. It involves personal attitudes and values towards patients' decisions, making it a clear representation of this domain.

On the other hand, understanding how an IV works pertains to cognitive knowledge, which relates to the intellectual learning processes. Performing chest compressions and demonstrating how to splint a leg are examples of psychomotor skills, reflecting physical activities or manual competencies rather than the emotional or value-oriented aspects of patient care. Thus, option A distinctly aligns with the principles of the affective domain.