Syncopal episode

1.Acute gastric ulcer with perforation 2. Gastrointestinal hemorrhage (upper gi bleeding) 3. Hemorrhagic shock Please describe the 3 diagnoses in 3 different paragraphs with each diagnosis having peer reviewed references less than 5 years old. Write a case study a patient who came in through ED due to syncopal episode. In the ED patient complaining of epigastric pain that radiates to the back. On arrival patient is hypotensive. Episodes of hematemesis. Hemoglobin is 4 and lactic acid is 6. History esophageal cancer