Final answer:
To effectively treat a patient diagnosed with schizophrenia and concurrent family cannabis abuse, the treatment plan should consider each diagnosis primary and provide simultaneous treatment for both the schizophrenia symptoms and cannabis use. An integrated approach, including antipsychotic medication and support for cannabis withdrawal, is recommended to effectively manage the interplay between the two conditions.
Step-by-step explanation:
When considering the treatment plans for individuals diagnosed with schizophrenia and concurrent family cannabis abuse, it is important to provide a comprehensive approach that addresses both conditions simultaneously. Both schizophrenia and cannabis use can exacerbate each other, leading to an increase in symptoms such as hallucinations and delusions. Therefore, the treatment team should consider each diagnosis primary and provide simultaneous treatment (option C). This includes managing the symptoms of schizophrenia, often with antipsychotic medications which block dopamine receptors to reduce dopamine neurotransmission, as well as addressing the cannabis use, possibly through behavioral therapies or support groups.
It's also important to account for the individualized needs of the patient, which could influence whether a residential facility (option A) is necessary, or establishing a particular order in treating the conditions (option D). However, withdrawal from cannabis should indeed be part of the integrated treatment plan, as cannabis use is known to affect the onset and severity of psychotic symptoms (option B). This approach aligns with the evidence suggesting that cannabis use can lead to earlier onset and more severe courses of schizophrenia.