NR 507 Week 5 Peptic Ulcer Disease Study Guide 2026 | Gastric Disorders, H. pylori & Nursing
Management | Complete Solutions PDF
NR 507: Week 5 Edapt: Peptic Ulcer Disease
PUD is commonly associated with Helicobacter pylori (H. pylori) bacterial infection. H. pylori can colonize the gastric
mucosa, leading to chronic inflammation and disruption of the mucosal barrier. This can result in increased acid
secretion, impaired mucus production, and the development of ulcers.
Nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen are well-known risk factors for PUD. Regular and
prolonged use of NSAIDs can interfere with the protective mechanisms of the gastrointestinal mucosa, leading to the
development of ulcers.
Excessive alcohol consumption is a recognized risk factor for PUD. Alcohol can irritate the gastric mucosa and
increase the production of gastric acid, contributing to the development of ulcers.
Advancing age is associated with an increased risk of PUD. Older individuals may experience changes in the
mucosal lining of the stomach that make them more susceptible to ulcers.
A family history of PUD suggests a potential genetic predisposition. Genetic factors may influence an individual's
susceptibility to developing ulcers.
, Zollinger-Ellison syndrome causes an increased risk of peptic ulcers due to the increased
production of gastric acid resulting from the presence of gastrin-secreting tumors.
Mucosa
Mucosa:
Surface epithelium: The innermost layer of the mucosa is the surface epithelium, composed mainly of mucous cells.
These cells secrete mucus, forming a protective barrier that prevents the stomach's acidic contents from damaging
the underlying tissues.
Gastric pits: These pits are depressions in the surface epithelium that serve as openings to the gastric glands.
Submucosa:
Connective tissue: The submucosa contains connective tissue with blood vessels, lymphatic vessels, and nerves.
These vessels supply nutrients to the mucosal cells and transport absorbed substances away.
Muscularis:
Smooth muscle: The muscularis externa is responsible for the peristaltic contractions that mix and churn the stomach
contents. It consists of three layers of smooth muscle: an inner oblique layer, a middle circular layer, and an outer
longitudinal layer.
Serosa:
Outermost layer: The stomach is covered by a protective outer layer known as the serosa, which helps prevent
friction with surrounding structures.
Pathophysiology of Peptic Ulcer Disease
A peptic ulcer is an ulceration in the mucosal lining of the lower esophagus, stomach, or duodenum. As a
result, inflammation can occur and penetrate submucosa. Examine the image below to learn more about the
stages of peptic ulcer disease (PUD) progression.
Management | Complete Solutions PDF
NR 507: Week 5 Edapt: Peptic Ulcer Disease
PUD is commonly associated with Helicobacter pylori (H. pylori) bacterial infection. H. pylori can colonize the gastric
mucosa, leading to chronic inflammation and disruption of the mucosal barrier. This can result in increased acid
secretion, impaired mucus production, and the development of ulcers.
Nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen are well-known risk factors for PUD. Regular and
prolonged use of NSAIDs can interfere with the protective mechanisms of the gastrointestinal mucosa, leading to the
development of ulcers.
Excessive alcohol consumption is a recognized risk factor for PUD. Alcohol can irritate the gastric mucosa and
increase the production of gastric acid, contributing to the development of ulcers.
Advancing age is associated with an increased risk of PUD. Older individuals may experience changes in the
mucosal lining of the stomach that make them more susceptible to ulcers.
A family history of PUD suggests a potential genetic predisposition. Genetic factors may influence an individual's
susceptibility to developing ulcers.
, Zollinger-Ellison syndrome causes an increased risk of peptic ulcers due to the increased
production of gastric acid resulting from the presence of gastrin-secreting tumors.
Mucosa
Mucosa:
Surface epithelium: The innermost layer of the mucosa is the surface epithelium, composed mainly of mucous cells.
These cells secrete mucus, forming a protective barrier that prevents the stomach's acidic contents from damaging
the underlying tissues.
Gastric pits: These pits are depressions in the surface epithelium that serve as openings to the gastric glands.
Submucosa:
Connective tissue: The submucosa contains connective tissue with blood vessels, lymphatic vessels, and nerves.
These vessels supply nutrients to the mucosal cells and transport absorbed substances away.
Muscularis:
Smooth muscle: The muscularis externa is responsible for the peristaltic contractions that mix and churn the stomach
contents. It consists of three layers of smooth muscle: an inner oblique layer, a middle circular layer, and an outer
longitudinal layer.
Serosa:
Outermost layer: The stomach is covered by a protective outer layer known as the serosa, which helps prevent
friction with surrounding structures.
Pathophysiology of Peptic Ulcer Disease
A peptic ulcer is an ulceration in the mucosal lining of the lower esophagus, stomach, or duodenum. As a
result, inflammation can occur and penetrate submucosa. Examine the image below to learn more about the
stages of peptic ulcer disease (PUD) progression.
