Many nursing practices are rooted in the work of original theorists. Key frameworks include:

: Outlines the five stages of clinical competence—novice, advanced beginner, competent, proficient, and expert—as nurses gain skill and experience. The Role of Theory in Clinical Practice

: Focuses on the impact of a patient's surroundings—such as light, air, and cleanliness—on their recovery.

Nursing Theories & Theorists: The Definitive Guide for Nurses