NR 507 WEEK 5 EDAPT OBSTRUCTIVE
GASTROINTESTINAL DISORDERS ADVANCED
PATHOPHYSIOLOGY
(CHAMBERLAIN UNIVERSITY)
NR 507: WEEK 5 EDAPT:
OBSTRUCTIVE GASTROINTESTINAL
DISORDERS
,NR 507: Week 5 Edapt: Obstructive Gastrointestinal Disorders
Obstructive gastrointestinal disorders like esophageal stricture and appendicitis occur with a
tightening or complete blockage of a part of the system. These can be deemed medical
emergencies in certain situations, but treatment is also available depending on the severity.
Chronic inflammation and the development of scar tissue are key contributors to the
development of esophageal strictures. Prolonged irritation and injury to the esophageal
mucosa trigger a reparative response, leading to the formation of scar tissue and thickening
of the esophageal wall, ultimately resulting in stricture formation.
Excessive gastric acid may contribute to esophageal injury but does not directly lead to
scar tissue formation. Accumulation of mucus and debris may cause obstruction but is not
a primary cause of esophageal stricture. Rapid cell proliferation is not a typical feature in
the pathophysiology of esophageal strictures.
he most common cause of appendicitis is the obstruction of the appendix by a fecalith
(hardened stool), leading to a buildup of bacteria, inflammation, and ultimately
appendicitis.
, The symptoms of food getting stuck during swallowing and pain when swallowing are
indicative of a potential esophageal stricture, which is a narrowing of the esophagus often
caused by inflammation or scarring. The NP should order an endoscopy. Endoscopy is a
direct visualization procedure that allows the healthcare provider to examine the
esophagus for abnormalities, such as strictures, and obtain biopsies if needed.
Normal Physiology of the Gastrointestinal System
• Ingestion: Ingestion is taking food into the mouth and chewing to break down food
into small er particles.
• Secretion: Various glands in the digestive system release digestive juices and
enzymes to bre ak down food.
• Propulsion: Peristalsis is the coordinated, rhythmic contraction and relaxation of
muscles that move food through the digestive tract. Swallowing helps propel food
from the mouth to the eso phagus, and peristalsis continues this movement through
the entire gastrointestinal tract.
• Digestion: Mechanical digestion is the physical breakdown of food into smaller
particles throu
gh chewing in the mouth and mixing in the stomach. Chemical digestion is when
enzymes brea k down complex molecules into simpler forms. For example, amylase
breaks down carbohydrat es, proteases break down proteins, and lipases break down
fats.
• Absorption: Nutrient absorption occurs primarily in the small intestine. Nutrients,
such as ami
no acids, fatty acids, glucose, and minerals, are absorbed into the bloodstream.
• Transport: Once absorbed, nutrients are transported through the bloodstream to
various cells and tissues in the body.
• Storage and metabolism: Nutrients not immediately needed are stored,
particularly in the li
ver and adipose tissue. The liver plays a key role in processing nutrients, regulating
blood gluc ose levels, and metabolizing fats.
• Formation of feces: Indigestible and unabsorbed materials, along with water and
waste prod
ucts, are formed into feces in the colon. Feces are stored in the rectum until
eliminated through the anus during defecation.
GASTROINTESTINAL DISORDERS ADVANCED
PATHOPHYSIOLOGY
(CHAMBERLAIN UNIVERSITY)
NR 507: WEEK 5 EDAPT:
OBSTRUCTIVE GASTROINTESTINAL
DISORDERS
,NR 507: Week 5 Edapt: Obstructive Gastrointestinal Disorders
Obstructive gastrointestinal disorders like esophageal stricture and appendicitis occur with a
tightening or complete blockage of a part of the system. These can be deemed medical
emergencies in certain situations, but treatment is also available depending on the severity.
Chronic inflammation and the development of scar tissue are key contributors to the
development of esophageal strictures. Prolonged irritation and injury to the esophageal
mucosa trigger a reparative response, leading to the formation of scar tissue and thickening
of the esophageal wall, ultimately resulting in stricture formation.
Excessive gastric acid may contribute to esophageal injury but does not directly lead to
scar tissue formation. Accumulation of mucus and debris may cause obstruction but is not
a primary cause of esophageal stricture. Rapid cell proliferation is not a typical feature in
the pathophysiology of esophageal strictures.
he most common cause of appendicitis is the obstruction of the appendix by a fecalith
(hardened stool), leading to a buildup of bacteria, inflammation, and ultimately
appendicitis.
, The symptoms of food getting stuck during swallowing and pain when swallowing are
indicative of a potential esophageal stricture, which is a narrowing of the esophagus often
caused by inflammation or scarring. The NP should order an endoscopy. Endoscopy is a
direct visualization procedure that allows the healthcare provider to examine the
esophagus for abnormalities, such as strictures, and obtain biopsies if needed.
Normal Physiology of the Gastrointestinal System
• Ingestion: Ingestion is taking food into the mouth and chewing to break down food
into small er particles.
• Secretion: Various glands in the digestive system release digestive juices and
enzymes to bre ak down food.
• Propulsion: Peristalsis is the coordinated, rhythmic contraction and relaxation of
muscles that move food through the digestive tract. Swallowing helps propel food
from the mouth to the eso phagus, and peristalsis continues this movement through
the entire gastrointestinal tract.
• Digestion: Mechanical digestion is the physical breakdown of food into smaller
particles throu
gh chewing in the mouth and mixing in the stomach. Chemical digestion is when
enzymes brea k down complex molecules into simpler forms. For example, amylase
breaks down carbohydrat es, proteases break down proteins, and lipases break down
fats.
• Absorption: Nutrient absorption occurs primarily in the small intestine. Nutrients,
such as ami
no acids, fatty acids, glucose, and minerals, are absorbed into the bloodstream.
• Transport: Once absorbed, nutrients are transported through the bloodstream to
various cells and tissues in the body.
• Storage and metabolism: Nutrients not immediately needed are stored,
particularly in the li
ver and adipose tissue. The liver plays a key role in processing nutrients, regulating
blood gluc ose levels, and metabolizing fats.
• Formation of feces: Indigestible and unabsorbed materials, along with water and
waste prod
ucts, are formed into feces in the colon. Feces are stored in the rectum until
eliminated through the anus during defecation.
