What does "ROS" stand for in medical terminology?

In medical terminology, "ROS" stands for "Review of Systems." This term refers to a systematic approach to obtaining a comprehensive health history from a patient. During a patient encounter, healthcare providers often conduct a review of systems to gather information about various organ systems, which helps in identifying any potential issues or symptoms that may not have been previously disclosed or assessed.

The review typically includes inquiries about various areas such as the cardiovascular, respiratory, gastrointestinal, and neurological systems, among others. This thorough assessment not only aids in diagnosing existing conditions but also plays a crucial role in preventive care by identifying risk factors or emerging health issues.

The other options do not accurately represent the term "ROS" in the context of medical practice. "Return of signs" and "Record of services" are not standard terminology used in patient evaluations, while "Review of symptoms" is a common phrase but not the officially recognized acronym in this context. As such, "Review of Systems" is the correct interpretation of "ROS."