The document provides an overview of the components of a mental status examination (MSE). It describes the MSE as an assessment of a person's current mental state and behavior, including objective observations by the clinician and subjective reports from the patient. The MSE evaluates general appearance, mood, thought processes, cognition, and insight/judgment. It is used to inform diagnosis, assess treatment response, and allow comparison over time or between providers. The document outlines each component of the MSE in detail.