Final answer:
The effective key brief intervention used by behavioral care managers for patients with opioid use disorder and depression is Motivational interviewing. It is a non-confrontational psychotherapeutic approach that increases motivation and commitment to change, and it's supported by evidence-based practice.
Step-by-step explanation:
The key brief intervention that is effective and used by the behavioral care manager for a patient with opioid use disorder and depression is C) Motivational interviewing. This method is part of psychotherapy and is known to be effective in treating substance use disorders. Unlike options such as electroconvulsive therapy or deep-brain stimulation, which are more invasive and often used for severe depression, motivational interviewing is a non-confrontational approach that helps patients identify their readiness to change, increase their motivation, and commit to a change strategy. Particularly for those dealing with addiction, this method fosters a sense of autonomy and empowerment.
It is essential to note that treating patients with dual diagnoses, such as opioid use disorder combined with depression, can involve multiple treatment modalities. Alongside motivational interviewing, other treatments might include cognitive-behavioral therapy (CBT), medication-assisted treatment (such as taking monoamine oxidase inhibitors or selective serotonin reuptake inhibitors), or in more resistant cases, potentially even electroconvulsive therapy. However, motivational interviewing is a foundational, evidence-based practice that supports the patient's psychological needs and readiness to change their behavior.