BIOD 331 PATHOPHYSIOLOGY MODULE 8 EXAM 2026–2027||qUESTIOnS
AnD AnSwErS wITH rATIOnALES/GrADED A+/2026 UPDATE/100%
cOrrEcT /InSTAnT DOwnLOAD
SECTION 1: GASTROINTESTINAL DISORDERS (QUESTIONS 1-15)
Question 1
A patient with gastroesophageal reflux disease (GERD) reports heartburn that wakes the patient at
night. Which recommendation should the nurse practitioner make?
A) Eat a large meal right before bedtime
B) Elevate the head of the bed on 6-8 inch blocks
C) Lie flat immediately after meals
D) Increase consumption of caffeinated beverages
Answer: B) Elevate the head of the bed on 6-8 inch blocks
Rationale: Elevating the head of the bed (using blocks under the head of the bed, not just pillows)
uses gravity to prevent gastric contents from refluxing into the esophagus during sleep. Pillows alone
are not effective because they can increase intra-abdominal pressure. Patients should also avoid
eating within 3 hours of bedtime (not large meals before bed, A), avoid lying flat after meals (C), and
avoid caffeine (D), chocolate, alcohol, spicy foods, fatty foods, and citrus (which relax the lower
esophageal sphincter or increase gastric acidity). Other interventions include weight loss, smoking
cessation, and medications (antacids, H2 blockers, PPIs).
Question 2
A patient with peptic ulcer disease (PUD) tests positive for Helicobacter pylori (H. pylori). Which
regimen is first-line treatment?
A) Proton pump inhibitor (PPI) alone
B) Triple therapy: PPI + amoxicillin + clarithromycin (or metronidazole) for 14 days
C) H2 blocker alone
,D) Antacids alone
Answer: B) Triple therapy: PPI + amoxicillin + clarithromycin for 14 days
Rationale: First-line treatment for H. pylori-associated peptic ulcer disease is triple therapy (or
quadruple therapy) for 10-14 days. Triple therapy includes a PPI (omeprazole, esomeprazole,
lansoprazole) plus two antibiotics (amoxicillin and clarithromycin; or metronidazole for penicillin-
allergic patients). Quadruple therapy (PPI + bismuth subsalicylate + metronidazole + tetracycline) is an
alternative. Eradication of H. pylori (confirmed by stool antigen test or urea breath test 4 weeks after
treatment) cures PUD and prevents recurrence. H. pylori is a Gram-negative bacterium that colonizes
the gastric mucosa and is the most common cause of PUD (80-90 percent of duodenal ulcers, 70-80
percent of gastric ulcers).
Question 3
A patient with acute pancreatitis has a calcium level of 7.0 mg/dL (normal 8.5-10.2). The mechanism of
hypocalcemia in acute pancreatitis is:
A) Hyperparathyroidism
B) Saponification (binding) of calcium by free fatty acids (fat necrosis)
C) Vitamin D deficiency
D) Hypomagnesemia
Answer: B) Saponification of calcium by free fatty acids
Rationale: In acute pancreatitis, pancreatic lipase breaks down peripancreatic fat into free fatty acids.
Free fatty acids then bind to calcium to form insoluble calcium soaps (saponification), consuming
serum calcium and causing hypocalcemia. Severe hypocalcemia is a poor prognostic sign (Ranson
criteria, Glasgow criteria). Hyperparathyroidism (A) causes hypercalcemia. Vitamin D deficiency (C)
causes hypocalcemia but is not the mechanism in acute pancreatitis. Hypomagnesemia (D) can cause
hypocalcemia but is not the primary mechanism. Treatment of hypocalcemia in acute pancreatitis
includes IV calcium gluconate (for symptomatic hypocalcemia) and treatment of the underlying
pancreatitis.
Question 4
,A patient with cirrhosis has ascites. Which mechanism contributes to ascites?
A) Portal hypertension and hypoalbuminemia
B) Increased plasma oncotic pressure
C) Lymphatic obstruction
D) Heart failure with increased hydrostatic pressure
Answer: A) Portal hypertension and hypoalbuminemia
Rationale: Ascites in cirrhosis results from: (1) Portal hypertension increases hydrostatic pressure in
splanchnic capillaries, forcing fluid into the peritoneal space; (2) Hypoalbuminemia (decreased liver
synthesis of albumin) reduces plasma oncotic pressure, worsening fluid extravasation. Splanchnic
vasodilation activates the RAAS, causing sodium and water retention, further contributing to ascites.
Other causes of ascites include heart failure (D), malignancy (peritoneal carcinomatosis), pancreatitis,
and tuberculosis. Treatment includes sodium restriction (less than 2 g/day), diuretics (spironolactone,
furosemide), and possibly paracentesis (therapeutic) for tense ascites.
Question 5
A patient with hepatic encephalopathy presents with asterixis (liver flap). This finding is caused by:
A) Accumulation of ammonia and other neurotoxins due to liver failure
B) Direct alcohol toxicity to the basal ganglia
C) Thiamine deficiency (Wernicke encephalopathy)
D) Hypoglycemia from impaired gluconeogenesis
Answer: A) Accumulation of ammonia and other neurotoxins
Rationale: Hepatic encephalopathy results from the liver's inability to detoxify ammonia and other
neurotoxins (e.g., manganese, mercaptans, short-chain fatty acids). Ammonia is converted to
glutamine in astrocytes, causing cerebral edema and altered neurotransmission. Asterixis (bilateral
flapping tremor when wrists are extended) is a characteristic finding in early hepatic encephalopathy
(Stage 2). Precipitants include GI bleeding (blood in the gut increases ammonia production), infection,
, constipation, electrolyte disturbances, medications (benzodiazepines, opioids, sedatives), and high
protein intake. Treatment includes lactulose (non-absorbable disaccharide that acidifies the colon,
converting NH3 to NH4+ which is trapped in the gut and excreted), rifaximin (antibiotic that reduces
ammonia-producing gut bacteria), and identifying and treating the precipitating cause.
Question 6
A patient with chronic hepatitis B is at risk for which long-term complication?
A) Hepatocellular carcinoma (HCC) (liver cancer)
B) Hepatic encephalopathy
C) Esophageal varices
D) All of the above
Answer: D) All of the above
Rationale: Chronic hepatitis B (and chronic hepatitis C) infection is a major risk factor for cirrhosis,
which can lead to portal hypertension (esophageal varices, C), ascites, hepatic encephalopathy (B),
and hepatocellular carcinoma (HCC) (A) (liver cancer). The risk of HCC is increased even in patients
without cirrhosis (especially in Asian patients with HBV). Patients with chronic HBV should be
monitored regularly with liver function tests (LFTs), HBV DNA, AFP (alpha-fetoprotein), and liver
ultrasound every 6 months for early detection of HCC. Antiviral therapy (entecavir, tenofovir) reduces
the risk of complications, including HCC, but does not eliminate it. Vaccination is the best prevention
for HBV.
Question 7
A patient with diverticulitis is prescribed a low-fiber diet during the acute phase. Which food selection
is most appropriate?
A) Whole grain bread
B) Raw vegetables
C) White rice
D) Popcorn
AnD AnSwErS wITH rATIOnALES/GrADED A+/2026 UPDATE/100%
cOrrEcT /InSTAnT DOwnLOAD
SECTION 1: GASTROINTESTINAL DISORDERS (QUESTIONS 1-15)
Question 1
A patient with gastroesophageal reflux disease (GERD) reports heartburn that wakes the patient at
night. Which recommendation should the nurse practitioner make?
A) Eat a large meal right before bedtime
B) Elevate the head of the bed on 6-8 inch blocks
C) Lie flat immediately after meals
D) Increase consumption of caffeinated beverages
Answer: B) Elevate the head of the bed on 6-8 inch blocks
Rationale: Elevating the head of the bed (using blocks under the head of the bed, not just pillows)
uses gravity to prevent gastric contents from refluxing into the esophagus during sleep. Pillows alone
are not effective because they can increase intra-abdominal pressure. Patients should also avoid
eating within 3 hours of bedtime (not large meals before bed, A), avoid lying flat after meals (C), and
avoid caffeine (D), chocolate, alcohol, spicy foods, fatty foods, and citrus (which relax the lower
esophageal sphincter or increase gastric acidity). Other interventions include weight loss, smoking
cessation, and medications (antacids, H2 blockers, PPIs).
Question 2
A patient with peptic ulcer disease (PUD) tests positive for Helicobacter pylori (H. pylori). Which
regimen is first-line treatment?
A) Proton pump inhibitor (PPI) alone
B) Triple therapy: PPI + amoxicillin + clarithromycin (or metronidazole) for 14 days
C) H2 blocker alone
,D) Antacids alone
Answer: B) Triple therapy: PPI + amoxicillin + clarithromycin for 14 days
Rationale: First-line treatment for H. pylori-associated peptic ulcer disease is triple therapy (or
quadruple therapy) for 10-14 days. Triple therapy includes a PPI (omeprazole, esomeprazole,
lansoprazole) plus two antibiotics (amoxicillin and clarithromycin; or metronidazole for penicillin-
allergic patients). Quadruple therapy (PPI + bismuth subsalicylate + metronidazole + tetracycline) is an
alternative. Eradication of H. pylori (confirmed by stool antigen test or urea breath test 4 weeks after
treatment) cures PUD and prevents recurrence. H. pylori is a Gram-negative bacterium that colonizes
the gastric mucosa and is the most common cause of PUD (80-90 percent of duodenal ulcers, 70-80
percent of gastric ulcers).
Question 3
A patient with acute pancreatitis has a calcium level of 7.0 mg/dL (normal 8.5-10.2). The mechanism of
hypocalcemia in acute pancreatitis is:
A) Hyperparathyroidism
B) Saponification (binding) of calcium by free fatty acids (fat necrosis)
C) Vitamin D deficiency
D) Hypomagnesemia
Answer: B) Saponification of calcium by free fatty acids
Rationale: In acute pancreatitis, pancreatic lipase breaks down peripancreatic fat into free fatty acids.
Free fatty acids then bind to calcium to form insoluble calcium soaps (saponification), consuming
serum calcium and causing hypocalcemia. Severe hypocalcemia is a poor prognostic sign (Ranson
criteria, Glasgow criteria). Hyperparathyroidism (A) causes hypercalcemia. Vitamin D deficiency (C)
causes hypocalcemia but is not the mechanism in acute pancreatitis. Hypomagnesemia (D) can cause
hypocalcemia but is not the primary mechanism. Treatment of hypocalcemia in acute pancreatitis
includes IV calcium gluconate (for symptomatic hypocalcemia) and treatment of the underlying
pancreatitis.
Question 4
,A patient with cirrhosis has ascites. Which mechanism contributes to ascites?
A) Portal hypertension and hypoalbuminemia
B) Increased plasma oncotic pressure
C) Lymphatic obstruction
D) Heart failure with increased hydrostatic pressure
Answer: A) Portal hypertension and hypoalbuminemia
Rationale: Ascites in cirrhosis results from: (1) Portal hypertension increases hydrostatic pressure in
splanchnic capillaries, forcing fluid into the peritoneal space; (2) Hypoalbuminemia (decreased liver
synthesis of albumin) reduces plasma oncotic pressure, worsening fluid extravasation. Splanchnic
vasodilation activates the RAAS, causing sodium and water retention, further contributing to ascites.
Other causes of ascites include heart failure (D), malignancy (peritoneal carcinomatosis), pancreatitis,
and tuberculosis. Treatment includes sodium restriction (less than 2 g/day), diuretics (spironolactone,
furosemide), and possibly paracentesis (therapeutic) for tense ascites.
Question 5
A patient with hepatic encephalopathy presents with asterixis (liver flap). This finding is caused by:
A) Accumulation of ammonia and other neurotoxins due to liver failure
B) Direct alcohol toxicity to the basal ganglia
C) Thiamine deficiency (Wernicke encephalopathy)
D) Hypoglycemia from impaired gluconeogenesis
Answer: A) Accumulation of ammonia and other neurotoxins
Rationale: Hepatic encephalopathy results from the liver's inability to detoxify ammonia and other
neurotoxins (e.g., manganese, mercaptans, short-chain fatty acids). Ammonia is converted to
glutamine in astrocytes, causing cerebral edema and altered neurotransmission. Asterixis (bilateral
flapping tremor when wrists are extended) is a characteristic finding in early hepatic encephalopathy
(Stage 2). Precipitants include GI bleeding (blood in the gut increases ammonia production), infection,
, constipation, electrolyte disturbances, medications (benzodiazepines, opioids, sedatives), and high
protein intake. Treatment includes lactulose (non-absorbable disaccharide that acidifies the colon,
converting NH3 to NH4+ which is trapped in the gut and excreted), rifaximin (antibiotic that reduces
ammonia-producing gut bacteria), and identifying and treating the precipitating cause.
Question 6
A patient with chronic hepatitis B is at risk for which long-term complication?
A) Hepatocellular carcinoma (HCC) (liver cancer)
B) Hepatic encephalopathy
C) Esophageal varices
D) All of the above
Answer: D) All of the above
Rationale: Chronic hepatitis B (and chronic hepatitis C) infection is a major risk factor for cirrhosis,
which can lead to portal hypertension (esophageal varices, C), ascites, hepatic encephalopathy (B),
and hepatocellular carcinoma (HCC) (A) (liver cancer). The risk of HCC is increased even in patients
without cirrhosis (especially in Asian patients with HBV). Patients with chronic HBV should be
monitored regularly with liver function tests (LFTs), HBV DNA, AFP (alpha-fetoprotein), and liver
ultrasound every 6 months for early detection of HCC. Antiviral therapy (entecavir, tenofovir) reduces
the risk of complications, including HCC, but does not eliminate it. Vaccination is the best prevention
for HBV.
Question 7
A patient with diverticulitis is prescribed a low-fiber diet during the acute phase. Which food selection
is most appropriate?
A) Whole grain bread
B) Raw vegetables
C) White rice
D) Popcorn
