Gastritis & Peptic Ulcer Disease Flashcards
inflammation, infection, or damage to the stomach’s mucosal lining
gastritis
gastric irritation and atrophy caused by cellular changes or weakened host mechanisms
nonerosive gastritis
what are the 2 most common causes of nonerosive gastritis?
pernicious anemia
H. pylori
auto-immune disease resulting in B12 malabsorption due to decreased intrinsic factor
pernicious anemia
what is the treatment for nonerosive gastritis caused by pernicious anemia? (2)
parenteral B12
PPI
how does H. pylori cause nonerosive gastritis?
H. pylori secretes ammonia which breaks down the mucosal layer
nonerosive gastritis caused by H. pylori in the body of the stomach would result in what?
gastric atrophy and irritation
nonerosive gastritis caused by H. pylori in the atrum of the stomach would result in what?
erosions and ulcers
a patient presents with anorexia, mid-epigastric pain and tenderness, and nausea. Dx?
nonerosive gastritis caused by H. pylori
what are 3 non-invasive diagnostics that can be used for nonerosive gastritis caused by H. pylori?
fecal antigen immunoassay
urea breath test
serological ELISA
what do fecal and breath tests both require?
D/C of PPI for 7-14 days and antibiotics for 28 days
what is an invasive diagnostic that can be used for nonerosive gastritis caused by H. pylori?
upper endoscopy with biopsy
what is the treatment for nonerosive and erosive gastritis caused by H. pylori?
standard triple therapy
PPI + clarithromycin + amoxicillin (metronidazole if PCN allergy)
when should we test for eradication after completing the standard triple therapy?
> 4 weeks after completing treatment
when should we expect for symptoms to improve after starting treatment for erosive and nonerosive gastritis caused by H. pylori?
7-14 days from starting therapy