This document discusses critical thinking in nursing. It defines critical thinking as an organized cognitive process used to carefully examine one's own thinking and the thinking of others based on evidence rather than assumptions. Critical thinking is needed for nurses to make accurate clinical decisions, solve problems, plan individualized care, and think creatively. It involves reflection, language skills, and intuition. Critical thinking progresses from basic to complex levels and involves commitment to decisions. Key competencies include using the scientific method, problem solving, decision making, diagnostic reasoning, and clinical decision making. A critical thinking model incorporates knowledge, experience, competencies, attitudes like curiosity and integrity, and standards.