Which of the following would indicate a need for careful monitoring of a client’s behavior?

A recent history of substance abuse is a key indicator for the need for careful monitoring of a client’s behavior. This is due to the potential for substance abuse to impact mental health and behavior significantly. Clients with such a history may be at higher risk for relapse or developing co-occurring mental health issues, which can provoke erratic or harmful behaviors. Therefore, close monitoring can help identify signs of relapse, assess the effectiveness of ongoing support and resources, and ensure the client adheres to any treatment plans that are in place.

While a diagnosis of generalized anxiety disorder, a recent change in medication, and a lack of family support are also important factors to consider for a client's overall care and stability, they do not carry the same immediate risks associated with monitoring as a recent history of substance abuse. Generalized anxiety disorder may result in anxiety-related behaviors but typically does not suggest a direct risk for dangerous behaviors. Changes in medication also require monitoring but are usually under medical supervision to mitigate risks. A lack of family support indicates a need for additional social resources rather than a direct need for behavioral observation.