Final answer:
The Review of Systems (ROS) is a systematic method used in healthcare to collect information about symptoms affecting different organ systems as part of a patient's medical history.
Step-by-step explanation:
The Review of Systems (ROS) is an integral component of the medical history taken during a patient's examination. It is a systematic approach that healthcare providers use to assess the presence of symptoms related to various organ systems throughout the body. During an ROS, a clinician will typically ask the patient about symptoms pertaining to different bodily systems such as cardiovascular, respiratory, gastrointestinal, and neurological, among others. This information helps to create a comprehensive picture of the patient's health and can guide further diagnostic testing or treatment planning.