How many systems are covered in an Extended Review of Systems (ROS)?

The Extended Review of Systems (ROS) addresses a broader range of issues than the Problem Focused or Expanded Problem Focused ROS. Specifically, it typically evaluates 2 to 9 systems, providing a comprehensive overview of the patient's health status. This extensive approach allows clinicians to identify additional health problems that may not be the primary focus of the visit but are nonetheless important for patient care.

For instance, a thorough assessment might include systems such as cardiovascular, respiratory, gastrointestinal, neurological, and others, thereby ensuring that any potential issues are detected and considered in the management plan. The requirement to review multiple systems is a crucial aspect of the Extended ROS, as it informs diagnoses and treatment plans that incorporate the patient's overall health.