The nurse is caring for a 51-year-old client admitted to the Emergency Department (ED). The nurse is caring for the client. Which nursing intervention is the priority?

Nursing management of a client with acute biliary obstruction and suspected pancreatic involvement requires close monitoring of fluid status, organ function, and potential complications such as dehydration, electrolyte imbalance, and evolving pancreatitis. In this case, the client presents with severe abdominal pain, jaundice, elevated liver enzymes, and elevated pancreatic enzymes consistent with biliary obstruction with possible pancreatitis. Care priorities focus on preventing deterioration and accurately tracking physiological changes during acute illness. A. Administering a TPN bolus every 4–6 hours is inappropriate because total parenteral nutrition (TPN) is administered as a continuous infusion with strict rate regulation. Boluses can lead to dangerous metabolic complications such as hyperglycemia, fluid overload, and electrolyte imbalance. Additionally, TPN is typically initiated after stabilization, not as intermittent dosing. B. Documenting strict intake and output is the priority because it provides essential data on fluid balance, renal perfusion, and disease progression in a critically ill patient. This client is at high risk for dehydration due to vomiting, decreased oral intake, and possible third-spacing from inflammation. Accurate I&O monitoring helps detect early hypovolemia, guide fluid resuscitation, and assess response to therapy. C. Changing TPN tubing and bag every 48 hours is an important infection control measure but not the immediate priority in this unstable client. Standard practice requires tubing changes at least every 24 hours for TPN to reduce infection risk. However, infection prevention is secondary to real-time monitoring of hemodynamic and metabolic status in acute care. D. Monitoring for peripheral intravenous infiltrates is necessary but less critical than systemic fluid balance assessment. While IV access must remain patent for medication and fluid administration, this client’s condition involves significant risk of internal fluid shifts and organ dysfunction. Prioritizing localized IV site complications does not address the broader physiologic instability present in this case.