A man on dialysis misses two treatments and has nausea and epigastric pain and then starts vomiting non-bilious, food related material. Endoscopy shows patches of erythematous mucosa with scattered petechia are seen. 1. What type of gastritis is this? 2. In this particular case what is the likely cause of this?

The gastrointestinal tract (GIT) is the system of organs that allows for the consumption and digestion of food, absorption of nutrients, and excretion of waste in the form of fecal matter.