What are vital signs?

Vital signs are essential measurements that provide critical information about a person's physiological status. They typically include body temperature, pulse (heart rate), respiration rate, and blood pressure. These indicators help healthcare professionals assess an individual's health and detect any potential medical issues that may require intervention. For instance, an elevated temperature might suggest an infection, while significant changes in pulse or blood pressure can indicate cardiovascular problems.

Other options describe different aspects of health care but do not pertain to vital signs. The screenings for mental health focus on psychological well-being, evaluations related to body mass index and diet assess nutritional status, and tests for infectious diseases are diagnostic procedures rather than measurements of basic physiological functions. Therefore, the precise definition of vital signs strictly aligns with the first choice, highlighting their crucial role in monitoring and assessing patient health.