, NSG 530 EXAM 3
Advanced Pathophysiology
Wilkes University
100-Question Original Practice Examination
2026/2027 Edition
This study assessment is an original practice resource modeled on the supported course scope. It is not an official, leaked, or
reconstructed Wilkes University examination.
1. After a fatty meal, a patient develops right upper-quadrant pain radiating to the right scapula.
Which mechanism most directly produces biliary colic?
A) Transient cystic duct obstruction by a gallstone
B) Inflammation limited to the pancreatic tail
C) Autoimmune destruction of gastric parietal cells
D) Failure of colonic water absorption
Correct Answer: A) Transient cystic duct obstruction by a gallstone
Rationale: Biliary colic occurs when a gallstone transiently obstructs the cystic duct, increasing gallbladder
pressure during contraction after a fatty meal. The pain may radiate to the right shoulder or scapular region.
Pancreatic inflammation, pernicious anemia, and colonic malabsorption do not create the characteristic
episodic postprandial obstruction pattern.
2. A person with chronic gastroesophageal reflux develops intestinal-type columnar epithelium in the
distal esophagus. This change is best described as:
A) Dysplasia
B) Metaplasia
C) Hypertrophy
D) Hyperplasia
Correct Answer: B) Metaplasia
Rationale: Barrett esophagus represents metaplasia, an adaptive replacement of normal squamous
epithelium by columnar epithelium better able to tolerate chronic acid exposure. Dysplasia refers to
disordered premalignant growth and may arise later. Hypertrophy increases cell size, whereas hyperplasia
increases cell number without changing mature cell type.
3. Severe epigastric pain radiating to the back is accompanied by elevated serum lipase. What
pathophysiologic event initiates most acute pancreatitis?
A) Loss of intrinsic factor secretion
B) Portal venous thrombosis as the universal trigger
C) Failure of bile salt synthesis in the liver
D) Premature activation of pancreatic digestive enzymes within the pancreas
NSG 530 Exam 3 | Original Practice Examination | 2026/2027 Edition Page 1
, Correct Answer: D) Premature activation of pancreatic digestive enzymes within the pancreas
Rationale: Acute pancreatitis begins when digestive zymogens, especially trypsinogen, become
inappropriately activated within pancreatic tissue, leading to autodigestion, inflammation, edema, and
sometimes necrosis. Intrinsic factor loss causes vitamin B12 deficiency, not pancreatitis. Portal thrombosis
and impaired bile salt synthesis can cause other gastrointestinal problems but are not the initiating
mechanism.
4. A patient with cirrhosis develops ascites. Which combination best explains the fluid accumulation?
A) Isolated increased plasma oncotic pressure
B) Excess intestinal lymphatic drainage
C) Reduced aldosterone activity with natriuresis
D) Portal hypertension plus renal sodium and water retention
Correct Answer: D) Portal hypertension plus renal sodium and water retention
Rationale: Ascites in cirrhosis reflects portal hypertension, splanchnic vasodilation, reduced effective arterial
volume, activation of the renin-angiotensin-aldosterone system, and renal sodium-water retention.
Hypoalbuminemia also contributes. Increased oncotic pressure would oppose edema, increased lymphatic
drainage would reduce it, and reduced aldosterone would promote sodium loss rather than retention.
5. Progressive dysphagia begins with solids and later involves liquids. Which process is most
concerning?
A) Primary failure of lower esophageal sphincter relaxation only
B) Mechanical narrowing from an esophageal malignancy
C) Acute infectious gastroenteritis
D) Diffuse colonic hypomotility
Correct Answer: B) Mechanical narrowing from an esophageal malignancy
Rationale: Dysphagia that first affects solids and later liquids suggests a progressively narrowing mechanical
lesion such as esophageal carcinoma. Achalasia more often causes difficulty with both solids and liquids from
early in the course. Gastroenteritis and colonic hypomotility do not explain a localized progressive esophageal
obstruction pattern.
6. An ulcer in the first portion of the duodenum most commonly results from which imbalance?
A) Complete absence of gastric acid
B) Acid-peptic injury exceeding mucosal defenses, often related to Helicobacter pylori
C) Excess pancreatic bicarbonate secretion
D) Primary loss of colonic mucus
Correct Answer: B) Acid-peptic injury exceeding mucosal defenses, often related to Helicobacter
pylori
Rationale: Duodenal peptic ulcer disease develops when acid-peptic exposure overwhelms mucosal
defenses, frequently in association with Helicobacter pylori or NSAID-related injury. Complete absence of
gastric acid would reduce ulcer risk. Pancreatic bicarbonate is protective, and colonic mucus abnormalities do
not directly produce proximal duodenal ulcers.
7. A child has projectile, nonbilious vomiting and a palpable olive-like mass. The underlying lesion is:
A) Hypertrophy of the pyloric circular muscle
B) Aganglionosis of the distal colon
NSG 530 Exam 3 | Original Practice Examination | 2026/2027 Edition Page 2
Advanced Pathophysiology
Wilkes University
100-Question Original Practice Examination
2026/2027 Edition
This study assessment is an original practice resource modeled on the supported course scope. It is not an official, leaked, or
reconstructed Wilkes University examination.
1. After a fatty meal, a patient develops right upper-quadrant pain radiating to the right scapula.
Which mechanism most directly produces biliary colic?
A) Transient cystic duct obstruction by a gallstone
B) Inflammation limited to the pancreatic tail
C) Autoimmune destruction of gastric parietal cells
D) Failure of colonic water absorption
Correct Answer: A) Transient cystic duct obstruction by a gallstone
Rationale: Biliary colic occurs when a gallstone transiently obstructs the cystic duct, increasing gallbladder
pressure during contraction after a fatty meal. The pain may radiate to the right shoulder or scapular region.
Pancreatic inflammation, pernicious anemia, and colonic malabsorption do not create the characteristic
episodic postprandial obstruction pattern.
2. A person with chronic gastroesophageal reflux develops intestinal-type columnar epithelium in the
distal esophagus. This change is best described as:
A) Dysplasia
B) Metaplasia
C) Hypertrophy
D) Hyperplasia
Correct Answer: B) Metaplasia
Rationale: Barrett esophagus represents metaplasia, an adaptive replacement of normal squamous
epithelium by columnar epithelium better able to tolerate chronic acid exposure. Dysplasia refers to
disordered premalignant growth and may arise later. Hypertrophy increases cell size, whereas hyperplasia
increases cell number without changing mature cell type.
3. Severe epigastric pain radiating to the back is accompanied by elevated serum lipase. What
pathophysiologic event initiates most acute pancreatitis?
A) Loss of intrinsic factor secretion
B) Portal venous thrombosis as the universal trigger
C) Failure of bile salt synthesis in the liver
D) Premature activation of pancreatic digestive enzymes within the pancreas
NSG 530 Exam 3 | Original Practice Examination | 2026/2027 Edition Page 1
, Correct Answer: D) Premature activation of pancreatic digestive enzymes within the pancreas
Rationale: Acute pancreatitis begins when digestive zymogens, especially trypsinogen, become
inappropriately activated within pancreatic tissue, leading to autodigestion, inflammation, edema, and
sometimes necrosis. Intrinsic factor loss causes vitamin B12 deficiency, not pancreatitis. Portal thrombosis
and impaired bile salt synthesis can cause other gastrointestinal problems but are not the initiating
mechanism.
4. A patient with cirrhosis develops ascites. Which combination best explains the fluid accumulation?
A) Isolated increased plasma oncotic pressure
B) Excess intestinal lymphatic drainage
C) Reduced aldosterone activity with natriuresis
D) Portal hypertension plus renal sodium and water retention
Correct Answer: D) Portal hypertension plus renal sodium and water retention
Rationale: Ascites in cirrhosis reflects portal hypertension, splanchnic vasodilation, reduced effective arterial
volume, activation of the renin-angiotensin-aldosterone system, and renal sodium-water retention.
Hypoalbuminemia also contributes. Increased oncotic pressure would oppose edema, increased lymphatic
drainage would reduce it, and reduced aldosterone would promote sodium loss rather than retention.
5. Progressive dysphagia begins with solids and later involves liquids. Which process is most
concerning?
A) Primary failure of lower esophageal sphincter relaxation only
B) Mechanical narrowing from an esophageal malignancy
C) Acute infectious gastroenteritis
D) Diffuse colonic hypomotility
Correct Answer: B) Mechanical narrowing from an esophageal malignancy
Rationale: Dysphagia that first affects solids and later liquids suggests a progressively narrowing mechanical
lesion such as esophageal carcinoma. Achalasia more often causes difficulty with both solids and liquids from
early in the course. Gastroenteritis and colonic hypomotility do not explain a localized progressive esophageal
obstruction pattern.
6. An ulcer in the first portion of the duodenum most commonly results from which imbalance?
A) Complete absence of gastric acid
B) Acid-peptic injury exceeding mucosal defenses, often related to Helicobacter pylori
C) Excess pancreatic bicarbonate secretion
D) Primary loss of colonic mucus
Correct Answer: B) Acid-peptic injury exceeding mucosal defenses, often related to Helicobacter
pylori
Rationale: Duodenal peptic ulcer disease develops when acid-peptic exposure overwhelms mucosal
defenses, frequently in association with Helicobacter pylori or NSAID-related injury. Complete absence of
gastric acid would reduce ulcer risk. Pancreatic bicarbonate is protective, and colonic mucus abnormalities do
not directly produce proximal duodenal ulcers.
7. A child has projectile, nonbilious vomiting and a palpable olive-like mass. The underlying lesion is:
A) Hypertrophy of the pyloric circular muscle
B) Aganglionosis of the distal colon
NSG 530 Exam 3 | Original Practice Examination | 2026/2027 Edition Page 2
