Chapter 45: Obesity Nursing Management

Obesity affects over 43% of U.S. adults and results from multifactorial interactions between genetic predisposition, environmental influences, and behavioral patterns, with particular emphasis on energy imbalance between caloric intake and expenditure. The pathophysiology involves hormonal dysregulation including leptin resistance and ghrelin imbalance, contributing to appetite control disruption and metabolic complications. Nurses must understand the classification system using body mass index, waist circumference measurements, and body fat distribution patterns, recognizing that android obesity poses greater metabolic risks than gynoid distribution. The chapter details extensive comorbidities associated with obesity including type 2 diabetes mellitus, cardiovascular disease, hypertension, dyslipidemia, nonalcoholic steatohepatitis, obstructive sleep apnea, gastroesophageal reflux disease, gallstone formation, osteoarthritis, and increased cancer risk. Metabolic syndrome emerges as a critical concept, defined by clustering of risk factors including abdominal obesity, elevated triglycerides, reduced high-density lipoprotein, hypertension, and impaired glucose metabolism. Management strategies encompass interprofessional approaches including nutritional counseling with caloric restriction, structured exercise programs, behavioral modification techniques, pharmacological interventions such as semaglutide and liraglutide, and surgical options ranging from restrictive procedures like sleeve gastrectomy to combination approaches like Roux-en-Y gastric bypass. Nursing care emphasizes holistic assessment, perioperative management of bariatric surgery patients, monitoring for complications including anastomotic leaks and nutritional deficiencies, psychosocial support addressing body image concerns and weight stigma, and long-term follow-up to promote sustainable lifestyle modifications and prevent weight regain.