A nurse on an inpatient mental health unit is caring for a client diagnosed with major depressive disorder and malnutrition. Which of the following actions should the nurse take to improve the client's nutritional status?

Choice A reason:
Complicated grieving is a natural response to the loss of a loved one, characterized by intense sorrow and longing. However, the client's statement indicates a sense of hopelessness and a lack of desire to continue living, which goes beyond the typical symptoms of complicated grieving. While it is important to assess for complicated grieving, the client's expression of not wanting to go on suggests a more immediate risk.

Choice B reason:
Chronic pain can lead to depression and decreased quality of life, but the client does not mention any physical pain. The absence of such complaints makes chronic pain a less likely cause for the client's current state. It is still important to assess for any physical discomfort that the client may not be communicating.

Choice C reason:
The client's statement of questioning the purpose of continuing life is a clear indicator of suicidal ideation, which warrants immediate further assessment. The risk for suicide is often heightened following significant life events such as the loss of a spouse. The nurse must prioritize this assessment to ensure the client's safety.

Choice D reason:
Social isolation can contribute to feelings of loneliness and depression, particularly in the elderly who have lost a significant other. While social isolation is a concern and can exacerbate other mental health issues, the client's explicit questioning of life's worth points more directly to a risk for suicide.

Choice A: Turn on a dance video so the client can burn off excess energy.
This intervention might help the client to channel their energy in a safe and controlled manner. However, it might also reinforce the manic behavior, which could be counterproductive in the long term.

Choice B: Take the client to a calm environment and offer snacks.
This intervention could help to distract the client from their manic behavior and provide them with a calming and grounding experience. Offering snacks could also help to stabilize their energy levels.

Choice C: Offer the client a low-calorie snack in return for stopping the behavior.
This intervention could be seen as a form of behavioral reinforcement. However, it might not be effective if the client is not motivated by food or if they perceive it as a form of manipulation.

Choice D: Observe the client closely for the development of aggressive behavior.
This intervention is crucial for ensuring the safety of the client and others in the unit. If the client's behavior escalates to aggression, the nurse would need to take immediate steps to de-escalate the situation and protect everyone involved.