Exam 5: Chapter 29, 30, 31, 32 Flashcards
Upper GI bleeding causes
bleeding varices, peptic ulcers, mallory-weiss tear
Lower GI bleeding causes
polyps, cancer, inflammatory disease, hemorrhoids
Sx of Gi bleeding
melena, decreased Hct and Hgb, tachycardia, hypotension, change in LOC, hematemesis, diarrhea
Pathophysiology of GERD
reflux of chyme through LES; decreased LES tone
Causes of GERD
increased abdominal pressure, delayed gastric emptying, and certain foods
Sx of GERD
heartburn, indigestion, acid regurgitation, dysphagia, cough, chest pain, asthma, abdominal pain with eating
Complications of GERD
esophageal cancer (Barretts tumor)
Pathophysiology of hiatal hernia
part of the stomach protrudes through diaphram into the thorax
Sx of hiatal hernia
GERD, esophagitis, dysphagia, epigastric pain
Pathophysiology of acute gastritis
usually superficial erosions due to injury to the mucosal barrier by drugs and chemicals like NSAIDs and aspirin
Pathophysiology of chronic gastritis
thinning and degeneration of the stomach wall; more in the elderly population
Pathophysiology of chronic fundal gastritis
the worst; leads to gastric atrophy, decreased acid secretion, pernicious anemia
Pathophysiology of peptic ulcer disease
a break or ulceration in the mucosal lining in the lower esophageal, stomach, or duodenum; exposed to gastric secretions and autodigestion
Causes of gastric ulcers
H. pylori and NSAIDs
Risk factors for gastric ulcers
chronic gastritis, decreased PG synthesis, duodenal reflux of bile and pancreatic enzymes
Causes of duodenal ulcers
H. pylori and NSAIDs; there is increased acid and pepsin secretion
Complications of duodenal gastritis
intestinal obstruction, bleeding, perforation, and death