A nurse is caring for a client with advanced lung cancer who is receiving palliative chemotherapy. The client reports severe fatigue, decreased appetite, and weight loss of 15 pounds over the past month. Laboratory results show hemoglobin 8.2 g/dL, albumin 2.8 g/dL, and total protein 5.5 g/dL. What is the priority nursing intervention?

The client shows signs of cancer cachexia with weight loss, low albumin, and fatigue. Priority is nutritional intervention with a high-protein, high-calorie plan to address protein-energy malnutrition. Other options do not directly target the underlying metabolic dysfunction.

Understanding the Client's Condition: Cancer Cachexia
The client's presentation of advanced lung cancer, severe fatigue, decreased appetite, and significant weight loss, combined with laboratory findings of anemia (hemoglobin 8.2 g/dL), hypoalbuminemia (albumin 2.8 g/dL), and low total protein (5.5 g/dL), is a classic clinical picture of cancer cachexia, specifically the anorexia-cachexia syndrome (ACS). It is critical to recognize that ACS is not simple starvation. It is a complex metabolic syndrome driven by a chronic pro-inflammatory response, and the resulting weight loss and muscle wasting cannot be fully reversed by conventional nutritional supplementation alone ^[2]. However, insufficient intake of calories and protein will exacerbate the weight loss, making a proactive nutritional strategy the cornerstone of management ^[2].

Why Nutritional Intervention is the Priority
The priority intervention is to collaborate with a dietitian to develop a high-protein, high-calorie nutritional plan and consider oral nutritional supplements. This approach directly addresses the inadequate intake that accelerates the client's clinical deterioration. The systematic review and meta-analysis by Okamura et al. supports this, indicating that interventions combining nutrition and exercise may offer benefits in mitigating cachexia-related impairments, with nutrition being a foundational component ^[3]. Before addressing the anemia with supplements or discussing activity and end-of-life care, the immediate physiological need is to halt the catabolic spiral by optimizing nutrient intake. The nurse's role is to initiate this interdisciplinary collaboration, as nurses often face challenges in managing cachexia without standardized tools and education ^[1].

Analysis of Incorrect Options
- Option 2 (Administer prescribed iron supplements): While the client has anemia, this is likely anemia of chronic disease related to the underlying inflammation of ACS, not a primary iron deficiency. Simply administering iron does not address the root cause of the cachexia-driven malnutrition and protein depletion, which are more immediately life-threatening ^[2].
- Option 3 (Encourage increased physical activity): Although physical activity is a valuable component of a multimodal intervention to combat muscle wasting, it is not the immediate priority. In a severely fatigued and malnourished client, increasing activity without first ensuring adequate caloric and protein intake can accelerate muscle breakdown and worsen the energy deficit ^[2].
- Option 4 (Provide emotional support and discuss end-of-life preferences): Psychosocial and spiritual support is a vital part of holistic palliative care. However, addressing the severe physiological imbalance from ACS takes precedence according to the hierarchy of needs. Uncontrolled physical symptoms like severe fatigue and anorexia will impair the client's ability to participate meaningfully in such discussions.

Integrating the Evidence into Nursing Practice
The pilot study by Sato and Hayashi highlights that nurses often lack standardized tools and education for assessing and managing cancer cachexia, which can lead to delayed or suboptimal interventions ^[1]. Therefore, a nurse who systematically identifies the hallmark signs—unintentional weight loss, fatigue, and low albumin indicative of protein-energy malnutrition—and promptly initiates a targeted nutritional strategy is applying best-practice principles. The meta-analysis on combined interventions further confirms that a multimodal approach, starting with nutritional repletion, is essential for managing the complex metabolic nature of cachexia ^[3]. The nurse’s action of collaborating with a dietitian is the first critical step in a comprehensive, evidence-based care plan to improve the client’s quality of life and potentially their tolerance of ongoing palliative chemotherapy ^[2].