Patient monitors are a type of diagnostic medical device that tracks key data points about a patient's health using a variety of sensors. The data that a particular patient monitor can track depends on its function, some basic vital signs monitors may only measure blood pressure and oxygen saturation while far more advanced machines may measure anesthesia gas levels and a large variety of patient parameters. This data is then processed and displayed in an easy to read format on the devices’ display. The types of data that can be measured by a specific patient monitor and the processing ability that each device has depends on its primary function. Patient monitors are a vital form of monitoring equipment that can help physicians provide adequate care in a variety of applications.