Define 'vital signs'.

Vital signs refer to key indicators of a patient's health status, which typically include temperature, pulse, respiration, and blood pressure. These measurements provide crucial information about the body's basic functions and can indicate the presence of health issues or the effectiveness of treatments. For instance, an elevated temperature may suggest infection, while changes in pulse or respiration can provide insights into cardiovascular and respiratory function. Monitoring these signs is essential in healthcare settings to assess a patient’s condition and guide clinical decisions.