The hospitalized client who contracted Clostridium difficile should be considered for which PRIORITY patient problem?

Clostridium difficile causes a profound inflammatory response in the colon, leading to the hypersecretion of water and electrolytes. Clients can experience 20 or more liquid stools per day, leading to rapid intravascular depletion and metabolic derangements. Management of hypovolemic shock and electrolyte imbalance is the primary physiological concern in these patients. A. Altered body image: While fecal incontinence and the odor associated with C. difficile can be distressing, psychological concerns are lower on the Maslow hierarchy than physiological stability. This is not an immediate threat to the client's life. Physical needs always take precedence in acute infection. B. Ineffective tissue perfusion: This could occur as a late stage of untreated dehydration, but it is a consequence rather than the primary problem. The most direct result of profuse diarrhea is fluid loss. Addressing the volume deficit is the intervention that prevents systemic perfusion failure. C. Fluid volume deficit: The loss of liquid stool leads to significant depletion of water, potassium, and sodium. This can result in acute kidney injury or fatal cardiac arrhythmias if not aggressively managed with rehydration. This is the most urgent physiological threat to the patient. D. Risk for infection: The client already has an active infection, so "Risk for" is an inappropriate nursing diagnosis for the current state. While transmission prevention to others is important, it does not address the immediate physiological crisis occurring within the affected client.