Which of the following terms would best describe a recommendation intended for practitioners?

The term "Guideline" is the most appropriate choice to describe a recommendation intended for practitioners. Guidelines are designed to provide guidance based on best practices, expert opinions, or a consensus of professional bodies. They are not legally binding but serve as an influential tool for practitioners to follow, helping to ensure consistency in practice and decision-making.

Guidelines are often developed through extensive research and consultation within a specific field. They aim to improve patient care, ensure safety, and promote effective health practices among professionals. By offering recommendations, guidelines help practitioners navigate complex situations and apply the best available evidence to their work.

In contrast, regulations and by-laws often have legal implications and are enforceable by law. Regulations are formal rules created by governing bodies that specify what is permissible, while by-laws are specific rules set by organizations or institutions governing their operations. Standards typically refer to established criteria or benchmarks for quality and performance, which may also be formalized but are different from the recommendation-based nature of guidelines.