Chapter 34: Renal and Urinary Disorders

The chapter explores acute and chronic kidney diseases, including acute kidney injury and chronic kidney disease stages, their etiologies, clinical presentations, and progression patterns. Glomerulonephritis and nephrotic syndrome are discussed in detail, covering immune-mediated injury mechanisms, proteinuria, edema formation, and nursing interventions. The content addresses kidney stone formation, including the biochemical processes underlying calculi development, risk factors, clinical manifestations of renal colic, and treatment modalities ranging from conservative management to surgical intervention. Polycystic kidney disease is examined as an inherited disorder affecting kidney structure and function. Urinary tract infections, including cystitis and pyelonephritis, are reviewed with attention to pathogenic mechanisms, clinical features, diagnostic criteria, and antimicrobial management. The chapter integrates concepts of fluid and electrolyte regulation, acid-base balance, and the renin-angiotensin-aldosterone system as they relate to renal pathology. Diagnostic procedures such as urinalysis, imaging studies, and renal biopsy are presented with their clinical applications. Nursing assessment, patient education regarding medication adherence and dietary modifications, and considerations for managing chronic renal conditions are emphasized throughout. This comprehensive review prepares students to recognize renal dysfunction, understand disease progression, and provide evidence-based nursing care for patients across the spectrum of renal and urinary disorders.