Nursing fundamentals is a core subject of the NCLEX exam. This topic is designed to help learners develop critical thinking skills while working as a nurse. Thus, all nurses must study and understand this area in order to be qualified. In this section, knowledge is categorized into 17 practice levels. In order to pass the NCLEX exam with a good result, you should do all the questions at least once. In addition, the question might appear on the actual test. Let's study now!