lOMoARcPSD|63525276
NR507 – Advanced Pathophysiology
Exam Study Guide – Final Study Guide
Exam Format: Cumulative
Question Type: Multiple Choice
Number of Questions: 100
Time Allotted: 120 minutes
Testing Timeframe: The final exam will only be available starting on
Wednesday Week 8 at 12:01 am MT until Saturday Week 8 at 11:59 pm MT.
1. Exam Coverage
Content Areas:
Week 5: Gastrointestinal and Neurobiological Pathologies
Week 6: Endocrine Pathologies
Week 7: CNS Sensory and Motor Pathologies
Week 8: Brain and Dermatological Pathologies
2. Key Concepts to Study
Gastrointestinal pathologies:
Pathophysiology of GERD
Gastroesophageal reflux disease (GERD) occurs when the lower esophageal sphincter (LES)
becomes weakened or relaxes inappropriately, allowing gastric acid to reflux into the esophagus.
Chronic exposure to acid causes mucosal inflammation, irritation, and possible erosion.
Signs and Symptoms of GERD
Common symptoms include heartburn, regurgitation, chest pain, dysphagia, chronic cough, and
hoarseness, particularly after meals or when lying down.
Pharmacologic Management of GERD
Treatment includes proton pump inhibitors (PPIs) such as omeprazole, H2 receptor antagonists
like famotidine, and antacids for symptomatic relief. Prokinetic agents may be used in selected
cases.
Risk Factors for Esophageal Stricture
, lOMoARcPSD|63525276
Chronic GERD, prolonged acid exposure, esophageal injury, radiation therapy, or ingestion of
caustic substances can lead to fibrosis and narrowing of the esophagus.
Hiatal Hernia Treatment
Treatment involves lifestyle modifications (weight loss, avoiding large meals), acid-suppressive
therapy, and surgical repair (e.g., Nissen fundoplication) in severe cases.
Pathophysiology of Appendicitis
Appendicitis results from obstruction of the appendix lumen, often by fecalith or lymphoid
hyperplasia, leading to increased pressure, bacterial overgrowth, ischemia, and inflammation.
Symptoms of Appendicitis
Patients typically experience right lower quadrant abdominal pain (McBurney’s point), nausea,
vomiting, fever, and rebound tenderness.
Diagnosing Appendicitis via Lab Work
Laboratory findings may show leukocytosis with a left shift (increased neutrophils), elevated C-
reactive protein (CRP), and occasionally mild electrolyte disturbances.
Risks for Appendectomy in Adults
Risks include infection, bleeding, anesthesia complications, bowel obstruction, and, rarely,
incisional hernia.
Peptic Ulcer Disease (PUD) Pathophysiology
PUD involves mucosal erosion in the stomach or duodenum due to an imbalance between
mucosal defense and acid-peptic injury, often associated with Helicobacter pylori infection or
NSAID use.
Risk Factors for PUD
Risk factors include H. pylori infection, chronic NSAID use, smoking, alcohol use, and stress.
Compare Gastric and Duodenal Ulcers
Gastric ulcers: Pain worsens with food; more likely associated with older age and
NSAIDs.
Duodenal ulcers: Pain improves with food; often related to H. pylori infection and
increased acid production.
Causes of Gastric Ulcers
NR507 – Advanced Pathophysiology
Exam Study Guide – Final Study Guide
Exam Format: Cumulative
Question Type: Multiple Choice
Number of Questions: 100
Time Allotted: 120 minutes
Testing Timeframe: The final exam will only be available starting on
Wednesday Week 8 at 12:01 am MT until Saturday Week 8 at 11:59 pm MT.
1. Exam Coverage
Content Areas:
Week 5: Gastrointestinal and Neurobiological Pathologies
Week 6: Endocrine Pathologies
Week 7: CNS Sensory and Motor Pathologies
Week 8: Brain and Dermatological Pathologies
2. Key Concepts to Study
Gastrointestinal pathologies:
Pathophysiology of GERD
Gastroesophageal reflux disease (GERD) occurs when the lower esophageal sphincter (LES)
becomes weakened or relaxes inappropriately, allowing gastric acid to reflux into the esophagus.
Chronic exposure to acid causes mucosal inflammation, irritation, and possible erosion.
Signs and Symptoms of GERD
Common symptoms include heartburn, regurgitation, chest pain, dysphagia, chronic cough, and
hoarseness, particularly after meals or when lying down.
Pharmacologic Management of GERD
Treatment includes proton pump inhibitors (PPIs) such as omeprazole, H2 receptor antagonists
like famotidine, and antacids for symptomatic relief. Prokinetic agents may be used in selected
cases.
Risk Factors for Esophageal Stricture
, lOMoARcPSD|63525276
Chronic GERD, prolonged acid exposure, esophageal injury, radiation therapy, or ingestion of
caustic substances can lead to fibrosis and narrowing of the esophagus.
Hiatal Hernia Treatment
Treatment involves lifestyle modifications (weight loss, avoiding large meals), acid-suppressive
therapy, and surgical repair (e.g., Nissen fundoplication) in severe cases.
Pathophysiology of Appendicitis
Appendicitis results from obstruction of the appendix lumen, often by fecalith or lymphoid
hyperplasia, leading to increased pressure, bacterial overgrowth, ischemia, and inflammation.
Symptoms of Appendicitis
Patients typically experience right lower quadrant abdominal pain (McBurney’s point), nausea,
vomiting, fever, and rebound tenderness.
Diagnosing Appendicitis via Lab Work
Laboratory findings may show leukocytosis with a left shift (increased neutrophils), elevated C-
reactive protein (CRP), and occasionally mild electrolyte disturbances.
Risks for Appendectomy in Adults
Risks include infection, bleeding, anesthesia complications, bowel obstruction, and, rarely,
incisional hernia.
Peptic Ulcer Disease (PUD) Pathophysiology
PUD involves mucosal erosion in the stomach or duodenum due to an imbalance between
mucosal defense and acid-peptic injury, often associated with Helicobacter pylori infection or
NSAID use.
Risk Factors for PUD
Risk factors include H. pylori infection, chronic NSAID use, smoking, alcohol use, and stress.
Compare Gastric and Duodenal Ulcers
Gastric ulcers: Pain worsens with food; more likely associated with older age and
NSAIDs.
Duodenal ulcers: Pain improves with food; often related to H. pylori infection and
increased acid production.
Causes of Gastric Ulcers
