Clinical meaning
Gout results from sustained hyperuricemia leading to monosodium urate (MSU) crystal deposition in joints and periarticular tissues. Crystal formation triggers NLRP3 inflammasome activation and massive interleukin-1β release, producing an intense neutrophilic inflammatory response. Acute attacks feature severe monoarticular pain, erythema, and edema, classically in the first MTP joint. Chronic tophaceous gout develops after years of inadequately treated hyperuricemia, with urate deposits (tophi) causing joint destruction. The nurse performs comprehensive joint assessment, manages acute pharmacologic therapy, monitors renal function during treatment, and coordinates lifestyle modification education.
Exam relevance
Risk factors: - Sustained hyperuricemia (>6.8 mg/dL) - Male sex; postmenopausal women losing estrogen's uricosuric effect - High-purine diet and fructose-sweetened beverages - Alcohol use (beer and spirits increase uric acid production) - Chronic kidney disease (decreased uric acid excretion) - Thiazide and loop diuretics - Organ transplant recipients on cyclosporine - Metabolic syndrome and obesity