Exam 2: NUR2063 / NUR 2063
Essentials of Pathophysiology
Latest Update | Review Guide Questions and Verified Answers | 100% Correct
Rasmussen University | Modules 4, 5, and 6 | 75 Questions
Section 1: Gastrointestinal Disorders (Q1 - Q25)
GERD, Hiatal Hernia, Gastritis, Peptic Ulcer Disease, Inflammatory Bowel Disease, Diverticular Disease, Hepatitis,
Cirrhosis Complications, Pancreatitis
Q1. A 48-year-old male presents with a burning sensation in his chest that worsens after eating a large meal
and when lying down at night. He reports occasional regurgitation of sour-tasting fluid. An endoscopy reveals
erosions in the lower esophagus. Which pathophysiologic mechanism is the primary cause of this patient's
condition?
A. Decreased gastric acid production by parietal cells
B. Incompetence of the lower esophageal sphincter (LES) allowing retrograde flow of gastric
contents **[CORRECT]**
C. Hyperactive gastric emptying leading to duodenal reflux
D. Increased esophageal peristalsis causing mucosal trauma
Correct Answer: B | Rationale: Gastroesophageal reflux disease (GERD) is primarily caused by incompetence of the
lower esophageal sphincter (LES), which normally acts as a barrier between the stomach and esophagus. When the LES
tone is reduced or it relaxes inappropriately, gastric acid and pepsin flow retrograde into the esophagus, causing the
characteristic burning sensation (heartburn). Decreased acid production would not cause these symptoms. Hyperactive
gastric emptying and increased peristalsis would reduce, not promote, reflux. [Rasmussen NUR2063 Module 4: Upper GI
Disorders]
Q2. A nurse is educating a patient with chronic GERD about complications of untreated disease. The nurse
explains that chronic exposure of the esophageal mucosa to gastric acid can lead to a precancerous condition.
Which cellular change best describes this progression?
A. Squamous cell carcinoma developing directly from normal epithelium
B. Metaplastic transformation of esophageal squamous epithelium to intestinal-type columnar
epithelium (Barrett's esophagus) **[CORRECT]**
C. Hypertrophic changes in the esophageal smooth muscle layer
D. Ulceration leading to direct perforation into the mediastinum
Correct Answer: B | Rationale: Barrett's esophagus is a complication of chronic GERD in which the normal stratified
squamous epithelium of the distal esophagus undergoes metaplastic transformation to intestinal-type columnar epithelium
with goblet cells. This is an adaptive response to chronic acid exposure but is considered a premalignant condition because
it significantly increases the risk of developing esophageal adenocarcinoma. Squamous cell carcinoma is associated with
smoking and alcohol, not GERD. Hypertrophy and perforation are not the primary precancerous pathway. [Rasmussen
NUR2063 Module 4: Complications of GERD]
Q3. A 55-year-old woman presents with persistent heartburn and is diagnosed with a hiatal hernia. The nurse
practitioner explains that the most common type of hiatal hernia involves the gastroesophageal junction sliding
through the esophageal hiatus. Which description accurately characterizes a sliding hiatal hernia compared to a
Page 1
,rolling (paraesophageal) hernia?
A. The fundus of the stomach pushes through the diaphragm alongside the esophagus while the
gastroesophageal junction remains in its normal position
B. Both the gastroesophageal junction and a portion of the stomach slide upward through the
esophageal hiatus **[CORRECT]**
C. The entire stomach herniates into the thoracic cavity and rotates 180 degrees
D. Only the duodenum passes through the esophageal hiatus into the chest
Correct Answer: B | Rationale: A sliding hiatal hernia (Type I) accounts for approximately 95% of all hiatal hernias. In
this type, both the gastroesophageal junction and a portion of the stomach slide upward through the esophageal hiatus. It is
often associated with GERD because the anatomic disruption compromises LES function. In contrast, a rolling or
paraesophageal hernia (Type II) involves the fundus herniating alongside the esophagus while the GE junction remains
fixed in its normal intra-abdominal position. The entire stomach herniating describes a Type IV hernia, which is rare.
[Rasmussen NUR2063 Module 4: Hiatal Hernia]
Q4. A patient asks the nurse why lifestyle modifications are recommended for managing GERD. Which
explanation best describes the pathophysiologic rationale for avoiding large meals and lying down after eating?
A. Large meals increase gastric acid secretion, and lying down decreases esophageal peristalsis
B. A large meal distends the stomach, increasing intra-abdominal pressure and promoting LES
relaxation; a supine position eliminates the gravity-assisted barrier to reflux **[CORRECT]**
C. Large meals delay gastric emptying, causing the pyloric sphincter to spasm and force contents upward
D. Lying down after eating increases saliva production, which neutralizes less acid when supine
Correct Answer: B | Rationale: The pathophysiologic rationale for avoiding large meals is that gastric distension from a
large volume increases intra-abdominal pressure, which overcomes LES pressure and promotes reflux. Lying flat
eliminates the protective effect of gravity, which normally assists in keeping gastric contents below the GE junction.
Together, these factors create optimal conditions for retrograde flow of acidic gastric contents into the esophagus. This is
why elevating the head of the bed and eating smaller, more frequent meals are cornerstone lifestyle interventions.
[Rasmussen NUR2063 Module 4: GERD Management]
Q5. A patient with a rolling (paraesophageal) hiatal hernia is asymptomatic regarding reflux but the nurse
practitioner explains that surgical repair may still be recommended. What is the primary reason for surgical
intervention in an asymptomatic paraesophageal hernia?
A. It carries a high risk of malignant transformation to adenocarcinoma
B. There is risk of strangulation and ischemia of the herniated gastric portion **[CORRECT]**
C. It causes chronic blood loss leading to iron deficiency anemia
D. The hernia will inevitably progress to a sliding hernia with severe GERD
Correct Answer: B | Rationale: Paraesophageal (rolling) hiatal hernias, while often causing less reflux than sliding
hernias, carry a significant risk of mechanical complications. The herniated portion of the stomach can become
incarcerated or strangulated within the hiatal opening, leading to ischemia, necrosis, and perforation. This potentially
life-threatening complication is the primary indication for surgical repair even in asymptomatic patients. Malignant
transformation is associated with Barrett's esophagus (from chronic GERD), not with the hernia itself. [Rasmussen
NUR2063 Module 4: Hiatal Hernia Complications]
Q6. A 35-year-old female presents with epigastric pain, nausea, and vomiting after chronic NSAID use for
rheumatoid arthritis. Endoscopy reveals erosions and mucosal inflammation in the stomach body. Which type
of gastritis does this patient most likely have?
A. Type A (autoimmune) chronic gastritis
B. Type B (H. pylori-associated) chronic gastritis
C. Acute erosive gastritis related to NSAID-induced mucosal injury **[CORRECT]**
, D. Hypertrophic gastritis (Menetrier's disease)
Correct Answer: C | Rationale: Acute erosive gastritis is most commonly caused by NSAIDs, which inhibit
cyclooxygenase-1 (COX-1) and reduce the production of protective prostaglandins (particularly PGE2 and PGI2) in the
gastric mucosa. Prostaglandins normally stimulate mucus and bicarbonate secretion and maintain mucosal blood flow.
Without this protective layer, gastric acid causes erosions and inflammation. Type A gastritis is autoimmune and affects
the fundus. Type B is associated with H. pylori and primarily affects the antrum. Menetrier's disease involves massive
fold hypertrophy. [Rasmussen NUR2063 Module 4: Gastritis]
Q7. A 42-year-old male tests positive for Helicobacter pylori via urea breath test. The nurse explains that H.
pylori contributes to gastric mucosal damage through multiple mechanisms. Which virulence factor of H.
pylori is most directly responsible for disrupting the gastric mucosal barrier?
A. The organism produces a toxin that increases gastric acid secretion to dangerous levels
B. Urease enzyme produces ammonia, creating a neutral microenvironment, while VacA toxin
causes vacuolation and CagA protein alters cell signaling **[CORRECT]**
C. The bacteria directly invade gastric epithelial cells and cause lytic cell death
D. H. pylori stimulates autoimmune destruction of parietal cells by molecular mimicry
Correct Answer: B | Rationale: H. pylori survives in the acidic stomach by producing urease, which converts urea to
ammonia and carbon dioxide, creating a neutral microenvironment around the bacterium. The VacA (vacuolating
cytotoxin A) toxin induces vacuole formation in gastric epithelial cells, causing direct cellular damage. The CagA
(cytotoxin-associated gene A) protein is injected into host cells via a type IV secretion system and alters intracellular
signaling pathways, promoting inflammation and potentially contributing to carcinogenesis. H. pylori does not
significantly increase acid secretion directly, nor does it invade cells. [Rasmussen NUR2063 Module 4: H. pylori
Pathogenesis]
Q8. A 40-year-old male presents with burning epigastric pain that occurs 30 to 60 minutes after eating. The
pain is partially relieved by antacids. Endoscopy reveals a gastric ulcer. Which statement best explains why
gastric ulcer pain typically occurs after meals, unlike duodenal ulcer pain which occurs before meals?
A. Gastric ulcers are caused by excess acid production, which peaks after meals
B. Food entering the stomach directly contacts the ulcer bed, and acid secretion stimulated by
food further irritates the damaged mucosa **[CORRECT]**
C. Gastric ulcers impair the pyloric sphincter, causing food to remain in the stomach longer
D. The vagus nerve is activated by the presence of food, intensifying the perception of pain
Correct Answer: B | Rationale: Gastric ulcer pain typically occurs within 30 to 60 minutes after eating because food
enters the stomach and directly contacts the ulcerated mucosa. Additionally, eating stimulates gastric acid secretion, which
further irritates the exposed ulcer bed where the protective mucosal barrier is lost. In contrast, duodenal ulcer pain
typically occurs 2 to 3 hours after meals (or during the night on an empty stomach) because acid secretion without the
buffering effect of food directly irritates the duodenal ulcer. This timing difference is a key clinical distinction between
gastric and duodenal ulcers. [Rasmussen NUR2063 Module 4: Peptic Ulcer Disease]
Q9. A 50-year-old male with a history of peptic ulcer disease presents to the emergency department with
sudden, severe abdominal pain. Examination reveals a rigid, board-like abdomen. The nurse recognizes this as
a potential complication of PUD. Which pathophysiologic event has most likely occurred?
A. Hemorrhage from erosion into a large artery
B. Perforation of the ulcer through the gastric or duodenal wall, allowing contents to enter the
peritoneal cavity **[CORRECT]**
C. Gastric outlet obstruction from chronic scarring and edema
D. Penetration of the ulcer into an adjacent organ such as the pancreas
Correct Answer: B | Rationale: The classic presentation of sudden, severe abdominal pain with a rigid, board-like
abdomen is characteristic of a perforated peptic ulcer. Perforation occurs when the ulcer erodes completely through the
Essentials of Pathophysiology
Latest Update | Review Guide Questions and Verified Answers | 100% Correct
Rasmussen University | Modules 4, 5, and 6 | 75 Questions
Section 1: Gastrointestinal Disorders (Q1 - Q25)
GERD, Hiatal Hernia, Gastritis, Peptic Ulcer Disease, Inflammatory Bowel Disease, Diverticular Disease, Hepatitis,
Cirrhosis Complications, Pancreatitis
Q1. A 48-year-old male presents with a burning sensation in his chest that worsens after eating a large meal
and when lying down at night. He reports occasional regurgitation of sour-tasting fluid. An endoscopy reveals
erosions in the lower esophagus. Which pathophysiologic mechanism is the primary cause of this patient's
condition?
A. Decreased gastric acid production by parietal cells
B. Incompetence of the lower esophageal sphincter (LES) allowing retrograde flow of gastric
contents **[CORRECT]**
C. Hyperactive gastric emptying leading to duodenal reflux
D. Increased esophageal peristalsis causing mucosal trauma
Correct Answer: B | Rationale: Gastroesophageal reflux disease (GERD) is primarily caused by incompetence of the
lower esophageal sphincter (LES), which normally acts as a barrier between the stomach and esophagus. When the LES
tone is reduced or it relaxes inappropriately, gastric acid and pepsin flow retrograde into the esophagus, causing the
characteristic burning sensation (heartburn). Decreased acid production would not cause these symptoms. Hyperactive
gastric emptying and increased peristalsis would reduce, not promote, reflux. [Rasmussen NUR2063 Module 4: Upper GI
Disorders]
Q2. A nurse is educating a patient with chronic GERD about complications of untreated disease. The nurse
explains that chronic exposure of the esophageal mucosa to gastric acid can lead to a precancerous condition.
Which cellular change best describes this progression?
A. Squamous cell carcinoma developing directly from normal epithelium
B. Metaplastic transformation of esophageal squamous epithelium to intestinal-type columnar
epithelium (Barrett's esophagus) **[CORRECT]**
C. Hypertrophic changes in the esophageal smooth muscle layer
D. Ulceration leading to direct perforation into the mediastinum
Correct Answer: B | Rationale: Barrett's esophagus is a complication of chronic GERD in which the normal stratified
squamous epithelium of the distal esophagus undergoes metaplastic transformation to intestinal-type columnar epithelium
with goblet cells. This is an adaptive response to chronic acid exposure but is considered a premalignant condition because
it significantly increases the risk of developing esophageal adenocarcinoma. Squamous cell carcinoma is associated with
smoking and alcohol, not GERD. Hypertrophy and perforation are not the primary precancerous pathway. [Rasmussen
NUR2063 Module 4: Complications of GERD]
Q3. A 55-year-old woman presents with persistent heartburn and is diagnosed with a hiatal hernia. The nurse
practitioner explains that the most common type of hiatal hernia involves the gastroesophageal junction sliding
through the esophageal hiatus. Which description accurately characterizes a sliding hiatal hernia compared to a
Page 1
,rolling (paraesophageal) hernia?
A. The fundus of the stomach pushes through the diaphragm alongside the esophagus while the
gastroesophageal junction remains in its normal position
B. Both the gastroesophageal junction and a portion of the stomach slide upward through the
esophageal hiatus **[CORRECT]**
C. The entire stomach herniates into the thoracic cavity and rotates 180 degrees
D. Only the duodenum passes through the esophageal hiatus into the chest
Correct Answer: B | Rationale: A sliding hiatal hernia (Type I) accounts for approximately 95% of all hiatal hernias. In
this type, both the gastroesophageal junction and a portion of the stomach slide upward through the esophageal hiatus. It is
often associated with GERD because the anatomic disruption compromises LES function. In contrast, a rolling or
paraesophageal hernia (Type II) involves the fundus herniating alongside the esophagus while the GE junction remains
fixed in its normal intra-abdominal position. The entire stomach herniating describes a Type IV hernia, which is rare.
[Rasmussen NUR2063 Module 4: Hiatal Hernia]
Q4. A patient asks the nurse why lifestyle modifications are recommended for managing GERD. Which
explanation best describes the pathophysiologic rationale for avoiding large meals and lying down after eating?
A. Large meals increase gastric acid secretion, and lying down decreases esophageal peristalsis
B. A large meal distends the stomach, increasing intra-abdominal pressure and promoting LES
relaxation; a supine position eliminates the gravity-assisted barrier to reflux **[CORRECT]**
C. Large meals delay gastric emptying, causing the pyloric sphincter to spasm and force contents upward
D. Lying down after eating increases saliva production, which neutralizes less acid when supine
Correct Answer: B | Rationale: The pathophysiologic rationale for avoiding large meals is that gastric distension from a
large volume increases intra-abdominal pressure, which overcomes LES pressure and promotes reflux. Lying flat
eliminates the protective effect of gravity, which normally assists in keeping gastric contents below the GE junction.
Together, these factors create optimal conditions for retrograde flow of acidic gastric contents into the esophagus. This is
why elevating the head of the bed and eating smaller, more frequent meals are cornerstone lifestyle interventions.
[Rasmussen NUR2063 Module 4: GERD Management]
Q5. A patient with a rolling (paraesophageal) hiatal hernia is asymptomatic regarding reflux but the nurse
practitioner explains that surgical repair may still be recommended. What is the primary reason for surgical
intervention in an asymptomatic paraesophageal hernia?
A. It carries a high risk of malignant transformation to adenocarcinoma
B. There is risk of strangulation and ischemia of the herniated gastric portion **[CORRECT]**
C. It causes chronic blood loss leading to iron deficiency anemia
D. The hernia will inevitably progress to a sliding hernia with severe GERD
Correct Answer: B | Rationale: Paraesophageal (rolling) hiatal hernias, while often causing less reflux than sliding
hernias, carry a significant risk of mechanical complications. The herniated portion of the stomach can become
incarcerated or strangulated within the hiatal opening, leading to ischemia, necrosis, and perforation. This potentially
life-threatening complication is the primary indication for surgical repair even in asymptomatic patients. Malignant
transformation is associated with Barrett's esophagus (from chronic GERD), not with the hernia itself. [Rasmussen
NUR2063 Module 4: Hiatal Hernia Complications]
Q6. A 35-year-old female presents with epigastric pain, nausea, and vomiting after chronic NSAID use for
rheumatoid arthritis. Endoscopy reveals erosions and mucosal inflammation in the stomach body. Which type
of gastritis does this patient most likely have?
A. Type A (autoimmune) chronic gastritis
B. Type B (H. pylori-associated) chronic gastritis
C. Acute erosive gastritis related to NSAID-induced mucosal injury **[CORRECT]**
, D. Hypertrophic gastritis (Menetrier's disease)
Correct Answer: C | Rationale: Acute erosive gastritis is most commonly caused by NSAIDs, which inhibit
cyclooxygenase-1 (COX-1) and reduce the production of protective prostaglandins (particularly PGE2 and PGI2) in the
gastric mucosa. Prostaglandins normally stimulate mucus and bicarbonate secretion and maintain mucosal blood flow.
Without this protective layer, gastric acid causes erosions and inflammation. Type A gastritis is autoimmune and affects
the fundus. Type B is associated with H. pylori and primarily affects the antrum. Menetrier's disease involves massive
fold hypertrophy. [Rasmussen NUR2063 Module 4: Gastritis]
Q7. A 42-year-old male tests positive for Helicobacter pylori via urea breath test. The nurse explains that H.
pylori contributes to gastric mucosal damage through multiple mechanisms. Which virulence factor of H.
pylori is most directly responsible for disrupting the gastric mucosal barrier?
A. The organism produces a toxin that increases gastric acid secretion to dangerous levels
B. Urease enzyme produces ammonia, creating a neutral microenvironment, while VacA toxin
causes vacuolation and CagA protein alters cell signaling **[CORRECT]**
C. The bacteria directly invade gastric epithelial cells and cause lytic cell death
D. H. pylori stimulates autoimmune destruction of parietal cells by molecular mimicry
Correct Answer: B | Rationale: H. pylori survives in the acidic stomach by producing urease, which converts urea to
ammonia and carbon dioxide, creating a neutral microenvironment around the bacterium. The VacA (vacuolating
cytotoxin A) toxin induces vacuole formation in gastric epithelial cells, causing direct cellular damage. The CagA
(cytotoxin-associated gene A) protein is injected into host cells via a type IV secretion system and alters intracellular
signaling pathways, promoting inflammation and potentially contributing to carcinogenesis. H. pylori does not
significantly increase acid secretion directly, nor does it invade cells. [Rasmussen NUR2063 Module 4: H. pylori
Pathogenesis]
Q8. A 40-year-old male presents with burning epigastric pain that occurs 30 to 60 minutes after eating. The
pain is partially relieved by antacids. Endoscopy reveals a gastric ulcer. Which statement best explains why
gastric ulcer pain typically occurs after meals, unlike duodenal ulcer pain which occurs before meals?
A. Gastric ulcers are caused by excess acid production, which peaks after meals
B. Food entering the stomach directly contacts the ulcer bed, and acid secretion stimulated by
food further irritates the damaged mucosa **[CORRECT]**
C. Gastric ulcers impair the pyloric sphincter, causing food to remain in the stomach longer
D. The vagus nerve is activated by the presence of food, intensifying the perception of pain
Correct Answer: B | Rationale: Gastric ulcer pain typically occurs within 30 to 60 minutes after eating because food
enters the stomach and directly contacts the ulcerated mucosa. Additionally, eating stimulates gastric acid secretion, which
further irritates the exposed ulcer bed where the protective mucosal barrier is lost. In contrast, duodenal ulcer pain
typically occurs 2 to 3 hours after meals (or during the night on an empty stomach) because acid secretion without the
buffering effect of food directly irritates the duodenal ulcer. This timing difference is a key clinical distinction between
gastric and duodenal ulcers. [Rasmussen NUR2063 Module 4: Peptic Ulcer Disease]
Q9. A 50-year-old male with a history of peptic ulcer disease presents to the emergency department with
sudden, severe abdominal pain. Examination reveals a rigid, board-like abdomen. The nurse recognizes this as
a potential complication of PUD. Which pathophysiologic event has most likely occurred?
A. Hemorrhage from erosion into a large artery
B. Perforation of the ulcer through the gastric or duodenal wall, allowing contents to enter the
peritoneal cavity **[CORRECT]**
C. Gastric outlet obstruction from chronic scarring and edema
D. Penetration of the ulcer into an adjacent organ such as the pancreas
Correct Answer: B | Rationale: The classic presentation of sudden, severe abdominal pain with a rigid, board-like
abdomen is characteristic of a perforated peptic ulcer. Perforation occurs when the ulcer erodes completely through the
