Nursing assessment is a continuous, systematic process that involves collecting and analyzing data about a person's physical, psychological, social, and other needs. There are two main components of health assessment: taking history and physical examination. A health assessment evaluates characteristics like physical, social, spiritual/cultural, and mental health. Assessments are tailored based on factors like age, from newborns to adults to elderly individuals. Comprehensive assessments involve collecting medical history, conducting a physical exam, and reviewing laboratory results.