Critical thinking is used by nurses in clinical situations to reason systematically and logically while remaining open to inquiry and self-reflection. This improves patient outcomes. Interpretation skills help the nurse to identify the problem by orderly collecting and clarifying patient data. Analyzing helps nurses recognize the potential cause of the problem. Inference aids nurses in examining the significance of the patient's findings and the relationship between the results. Evaluation helps nurses to determine the results of nursing interventions objectively. Explanation guides nurses in drawing conclusions that are supported by evidence-based practice. Self-regulation helps nurses to evaluate their performance and the methods used to address the identified problems. In addition, critical thinking can be applied at three levels: basic, complex, and commitment. At the basic level, the nurse believes that experts have the correct answers to all problems.