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Gastrointestinal

Chronic Pancreatitis

Snapshot A 32-year-old female is brought to the emergency room by her husband for

H2 Blockers

Introduction Other agents: cimetidine, famotidine, and nizatidine  Mechanism  indirectly inhibit proton pump by blocking stimulation

Acute Cholecystitis

Snapshot A 45-year-old obese woman presents to the emergency room with steady, severe, aching

Hirschsprung Disease

Snapshot A 2-day-old neonate is noted in the well-baby nursery to have some abdominal

Esophageal Varices

Snapshot A 60-year-old man with a history of alcoholic cirrhosis presents to the emergency

Zenker Diverticulum

Snapshot A 59-year-old man presents to the clinic for complaints of bad breath and

Hepatic Encephalopathy

Snapshot A 45-year-old man with a history of alcoholic cirrhosis is found on the

Carcinoid Tumor

Introduction Tumor of neuroendocrine origin most common small bowel tumor Location most common sites are

Celiac Trunk

Overview Celiac trunk originates from the abdominal aorta at the level of the aortic hiatus (T12)

Barrett Esophagus

Snapshot A 50-year-old woman complains of increased regurgitation, especially when lying down. Her father

Proton Pump Inhibitors

Omeprazole Other agents: lansoprazole and pantoprazole Mechanism irreversibly inhibits H+/K+-ATPase in gastric parietal cells    H+/K+-ATPase is