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Gastritis (Diagnosis (Test for H. pylori (Urea breath test, Stool antigen…

- - - - Results from destruction of the mucosa due to drugs, chemicals, or H. pylori
        
        Drugs (NSAIDs, alcohol) prevents prostaglandin, which induces mucosal secretion
      - Can heal within few days
    - - Older adults
      - Inflammation is chronic
      - Type A
        
        immune
        
        causes: H. pylori infection progression
      - Type B
        
        nonimmune
        
        causes: H. pylori, alcohol, smoking, or NSAIDs
      - Type AB
        
        both immune and nonimmune
      - Type C
        
        chemical damage from bile and pancreatic secretions going into the stomach
      - Stomach may atrophy
      - Diminished production of hydrochloric acid, pepsinogen, and intrinsic factor, which are all necessary for proper food absorption