Gastritis: Etiology

Question 1

Acute Gastritis

Answer 1

1. Local irritants (drugs, alcohol, caffeine, ingestion of corrosive substances)
2. Stress
3. Bacterial invasion

Staphylococci
Salmonella
E. coli
H. pylori

Question 2

Genetically linked or autoimmune pathogenesis associated with presence of antibodies to parietal cells and intrinsic factors

Answer 2

Chronic Gastritis

Type A

Question 3

Most common, caused by H. pylori infection

Local irritation and toxic effects by alcohol ingestion

Answer 3

Chronic Gastritis

Type B

Question 4

Most common in older adults

Exposure to toxic substances in the workplace (lead, nickel, benzene)

Answer 4

Chronic Gastritis

Atrophic

Question 5

1. May occur d/t bile acid reflux (complication of gastrojejunal surgery or PUD)
2. Chronic use of irritants

Answer 5

Chronic Gastritis