Chapter 70: Complex Care

Intravenous therapy forms a foundational element, with understanding of solution osmolality categories—isotonic, hypotonic, and hypertonic—essential for predicting fluid shifts and managing complications such as infiltration, phlebitis, air embolism, and circulatory overload. Blood product administration demands meticulous verification protocols and recognition of immediate transfusion reactions requiring rapid intervention. Advanced airway and tube management encompasses nasogastric placement verification, endotracheal and tracheostomy cuff pressure monitoring, and chest tube water seal assessment, each requiring specific nursing vigilance. Burn injury management integrates the Rule of Nines for severity estimation and progresses through resuscitation phases employing the Parkland formula for fluid replacement while monitoring urine output as a physiological indicator. The chapter covers life-threatening oncological emergencies including superior vena cava syndrome, spinal cord compression, and syndrome of inappropriate antidiuretic hormone secretion. Endocrine crises demand rapid recognition and treatment, particularly diabetic ketoacidosis managed through aggressive fluid and insulin therapy and hyperosmolar hyperglycemic syndrome presenting without significant ketosis. Cardiovascular emergencies encompass shock classifications—hypovolemic, cardiogenic, vasogenic, and obstructive—each requiring differentiated management approaches, alongside cardiac tamponade recognition and post-operative coronary artery bypass graft monitoring. Respiratory failure, particularly acute respiratory distress syndrome with its characteristic hypoxemia unresponsive to supplemental oxygen, demands immediate intervention. Neurological emergencies include increased intracranial pressure assessment using altered consciousness as the earliest indicator and Cushing's Triad recognition, plus spinal cord injury management emphasizing immobilization and autonomic dysreflexia prevention in patients with injuries above T6. These interconnected concepts represent the foundation of complex critical care nursing practice.