This document discusses gastritis, including its causes, types, signs and symptoms, diagnosis, treatment, prevention, complications, and relevant nursing diagnoses and interventions. Gastritis is inflammation of the stomach lining and can be acute or chronic. It has various causes like infections, NSAIDs, stress, and alcohol. Symptoms include abdominal pain, bloating, weight loss and nausea. Treatment involves antacids, H2 blockers, PPIs, and antibiotics. Nurses address pain management and ensuring adequate nutrition for patients with gastritis.