You are an AGACNP practicing as a hospitalist in a tertiary care center

You are an AGACNP practicing as a hospitalist in a tertiary care center. You are tasked with admitting a patient with a chief complaint of an acute gastrointestinal disease state. Choose from one of the following and try not to post duplicate posts on the same subject.

• Nausea and Vomiting
• Bowel Obstruction
• Unintentional Weight Loss
• Gastroesophageal Reflux Disease (GERD)
• Esophagitis
• Peptic Ulcer Disease
• Gastrointestinal Bleeding
• Esophageal Varices
• Gastroparesis
• Constipation
• Intestinal Parasites
• Peritonitis/Surgical Abdomen
• Inflammatory Bowel Disease
• Ulcerative Colitis
• Diverticulitis
• Diarrhea
• Pancreatitis
• Gall Bladder Disease
• Hepatitis B and C
• Alcoholic Liver Disease
• Nonalcoholic Fatty Liver Disease (NAFLD)/ Nonalcoholic Steatohepatitis (NASH)
• Anatomic Intestinal Disorders

Outline typical presentation, etiology including risk factors, common differential diagnosis, typical diagnostic work-up, treatment plan based on current evidence-based clinical guidelines, any appropriate environmental or nutritional interventions associated with the disease process, preventative measures, appropriate referrals, screening tools/diagnostic specific scales tools (if any), and additional information that would be important to the geriatric population. Highlight differences in presentation of adult versus geriatric patients with this diagnosis. Support your answer with two or three peer-reviewed resources.