A client diagnosed with bipolar I disorder is distraught over insomnia experienced over the last 3 nights and a 12-pound weight loss over the past 2 weeks. Which should be this client's priority nursing diagnosis given the current symptoms?

Choice A reason: While ineffective coping may be present, it is not the most immediate physiological concern. The client’s distress centers on sleep disruption, which is a key symptom of mania and affects overall functioning. Choice B reason: This diagnosis directly addresses the client’s primary complaint—insomnia. Sleep disturbance is a hallmark of manic episodes and contributes to worsening symptoms. Addressing sleep is critical for stabilization. Choice C reason: Knowledge deficit is not the priority. The client is aware of their symptoms and is seeking help. Education is important but secondary to physiological and safety needs. Choice D reason: Nutrition is a concern, but the weight loss is less acute than the sleep deprivation. Sleep disruption can exacerbate mania and lead to further deterioration, making it the higher priority.