SPRING SEMESTER 2026 AANP FAMILY NURSE
PRACTITIONER (FNP) GASTROINTESTINAL
DISORDERS PRACTICE EXAM PDF | 250+
BOARD-STYLE QUESTIONS, VERIFIED
ANSWERS & DETAILED RATIONALES | GERD,
PEPTIC ULCER DISEASE, IBD, IBS & GI
DISORDERS | UPDATED 2026
Q1. A 42-year-old patient presents with heartburn >2×/week for 8 weeks, regurgitation, and mild
dysphagia. Most appropriate initial pharmacologic treatment? A. Ranitidine 150 mg BID B.
Omeprazole 20 mg once daily before breakfast ✓ CORRECT ANSWERC.
Metoclopramide 10 mg before meals D. Calcium carbonate antacid as needed
RATIONALE: PPIs such as omeprazole are first-line for GERD with frequent symptoms,
suppressing gastric acid more effectively than H2 blockers. Ranitidine is second-line; antacids
are symptomatic only; metoclopramide is for motility issues, not first-line GERD.
Q2. Which lifestyle modification is MOST effective in reducing GERD in an obese patient? A.
Avoiding spicy foods exclusively B. Sleeping on the right side C. Weight loss and elevation of
the head of the bed ✓ CORRECT ANSWERD. Increasing dietary fiber intake
RATIONALE: Weight loss reduces intra-abdominal pressure decreasing LES incompetence.
Elevating the head of bed 6–8 inches reduces nocturnal reflux. Sleeping on the right side
worsens GERD (left-lateral is recommended).
Q3. Patient on omeprazole 20 mg daily × 8 weeks without adequate relief. Best next step? A.
Switch to an H2 blocker B. Double the PPI dose or switch to a higher-potency PPI ✓
CORRECT ANSWERC. Refer immediately for fundoplication D. Add sucralfate
RATIONALE: For refractory GERD after standard-dose PPI × 8 weeks, double the dose or
switch to a more potent PPI (e.g., esomeprazole). Surgical referral is reserved for confirmed
refractory disease after medical optimization.
Q4. Which alarm symptom requires prompt endoscopic evaluation in suspected GERD? A. Mild
nausea after meals B. Belching and bloating C. Unintentional weight loss and progressive
dysphagia ✓ CORRECT ANSWERD. Nocturnal cough RATIONALE: Alarm/red flag
,symptoms for upper GI malignancy — unintentional weight loss, progressive dysphagia,
odynophagia, iron-deficiency anemia, hematemesis, or palpable mass — warrant urgent EGD.
Q5. Barrett's esophagus histologic change is: A. Intestinal metaplasia replacing squamous
epithelium in the distal esophagus ✓ CORRECT ANSWERB. Squamous cell hyperplasia
C. Eosinophilic infiltration D. Mucosal erosion into the muscularis propria RATIONALE:
Barrett's = replacement of stratified squamous epithelium with specialized intestinal metaplasia
(columnar epithelium with goblet cells), increasing risk of esophageal adenocarcinoma.
Q6. Barrett's esophagus without dysplasia surveillance interval: A. Annual EGD for all GERD
patients B. EGD every 6 months C. EGD surveillance every 3–5 years ✓ CORRECT
ANSWERD. Immediate esophagectomy RATIONALE: ACG guidelines — Barrett's
without dysplasia: EGD every 3–5 years. Low-grade dysplasia: every 6–12 months or
endoscopic eradication. High-grade: eradication therapy or surgery.
Q7. Foods with strongest evidence for reducing LES pressure and worsening GERD: A. Bananas
B. Chocolate and peppermint ✓ CORRECT ANSWERC. Whole grains D. Lean proteins
RATIONALE: Chocolate (methylxanthines + serotonin), peppermint, fatty foods, alcohol,
and caffeine directly reduce LES pressure. Bananas and whole grains are generally GERD-
neutral.
Q8. CORRECT ANSWERtiming for omeprazole administration: A. Take with food B. Take
at bedtime C. Take 30–60 minutes before the first meal of the day ✓ CORRECT
ANSWERD. Take with antacids RATIONALE: PPIs are prodrugs requiring activation by
parietal cell H⁺/K⁺-ATPase. Most effective 30–60 minutes before eating, when food stimulates
parietal cell activity needed to activate the PPI.
Q9. Long-term PPI use is associated with: A. Hypercalcemia and nephrolithiasis B.
Hypomagnesemia, vitamin B12 deficiency, and increased fracture risk ✓ CORRECT
ANSWERC. Hyperkalemia and metabolic alkalosis D. Hepatotoxicity RATIONALE:
Long-term PPI use: hypomagnesemia, B12 deficiency, hip/spine fracture risk, C. diff infection.
Monitor magnesium and B12 periodically.
,Q10. Safest GERD medication in a 16-week pregnant patient: A. Calcium carbonate antacid ✓
CORRECT ANSWERB. Omeprazole 20 mg daily C. Metoclopramide 10 mg before meals
D. Ranitidine 150 mg BID RATIONALE: Antacids (calcium carbonate) are safest first-line
in pregnancy — not systemically absorbed, no fetal risk. PPIs and H2 blockers are options if
antacids fail.
Q11. Eosinophilic esophagitis — all TRUE except: A. Food impaction and dysphagia B. ≥15
eosinophils/HPF on esophageal biopsy C. Strong association with atopy and food allergies D.
Resolution of symptoms with PPI therapy alone in all cases ✓ CORRECT
ANSWERRATIONALE: EoE is immune/antigen-mediated. Treatment typically requires
dietary elimination and/or topical swallowed corticosteroids. EoE does NOT resolve with PPI
alone in all cases.
Q12. Patient taking clopidogrel for cardiac stent — most appropriate PPI: A. Omeprazole B.
Esomeprazole C. Pantoprazole or rabeprazole — least CYP2C19 interaction ✓
CORRECT ANSWERD. Lansoprazole RATIONALE: Omeprazole and esomeprazole
strongly inhibit CYP2C19, reducing clopidogrel's antiplatelet activation. Pantoprazole and
rabeprazole have least CYP2C19 interaction and are preferred.
Q13. Gold standard for diagnosing GERD when diagnosis is uncertain: A. Barium esophagram
B. Upper endoscopy (EGD) C. 24-hour ambulatory pH monitoring ✓ CORRECT
ANSWERD. Esophageal manometry RATIONALE: Ambulatory 24-hour pH monitoring
is gold standard — measures acid exposure time and correlates symptoms with reflux events.
EGD may be normal in GERD.
Q14. Patient with persistent GERD despite twice-daily PPI, lifestyle changes, and confirmed
compliance. Next step: A. Add H2 blocker at bedtime B. Increase PPI to three times daily C.
Refer to gastroenterology for pH impedance testing ✓ CORRECT ANSWERD.
Prescribe baclofen RATIONALE: Refractory GERD despite optimized twice-daily PPI
warrants GI referral. pH-impedance testing identifies non-acid reflux, functional heartburn, or
true refractory GERD.
, Q15. Sour taste in mouth, morning cough, nocturnal coughing — GERD-related condition: A.
Peptic ulcer disease B. Laryngopharyngeal reflux (LPR) ✓ CORRECT ANSWERC.
Achalasia D. Zenker's diverticulum RATIONALE: LPR (extraesophageal GERD) — acid
refluxes into laryngopharynx causing hoarseness, throat clearing, post-nasal drip, chronic
cough, sour taste — often without classic heartburn.
Q16. Most common type of hiatal hernia: A. Type I — sliding hiatal hernia ✓ CORRECT
ANSWERB. Type II — paraesophageal hernia C. Type III — mixed hernia D. Type IV —
large mixed hernia RATIONALE: Type I (sliding) accounts for ~95% of hiatal hernias. GEJ
and gastric cardia slide above the diaphragm. Strongly correlates with GERD.
Q17. Most appropriate initial approach to a 28-year-old with classic GERD, no alarm features:
A. Order upper endoscopy first B. Order H. pylori serology first C. Empiric PPI trial with
lifestyle modifications ✓ CORRECT ANSWERD. Refer to gastroenterology before
treatment RATIONALE: For patients <60 without alarm symptoms, empiric 4–8-week PPI
trial with lifestyle modifications is both diagnostic and therapeutic. EGD reserved for alarm
features, age ≥60, or PPI failure.
Q18. Long-term PPI use without periodic reassessment: A. Contraindicated in Barrett's
esophagus B. Contraindicated with chronic NSAID use C. No absolute contraindication, but
ongoing need must be reassessed periodically ✓ CORRECT ANSWERD.
Contraindicated with warfarin RATIONALE: PPIs have no absolute contraindication for
long-term use, but lowest effective dose and periodic reassessment (at least annually) are
recommended per guidelines.
Q19. GERD patient with solid food dysphagia; EGD shows mucosal rings and linear furrows.
Most likely diagnosis: A. Barrett's esophagus B. Esophageal adenocarcinoma C. Eosinophilic
esophagitis (EoE) ✓ CORRECT ANSWERD. Esophageal stricture from GERD
RATIONALE: EoE — dysphagia to solids, food impaction; endoscopy: rings
(trachealization), linear furrows, white exudates. Diagnosis: ≥15 eos/HPF after PPI trial.
PRACTITIONER (FNP) GASTROINTESTINAL
DISORDERS PRACTICE EXAM PDF | 250+
BOARD-STYLE QUESTIONS, VERIFIED
ANSWERS & DETAILED RATIONALES | GERD,
PEPTIC ULCER DISEASE, IBD, IBS & GI
DISORDERS | UPDATED 2026
Q1. A 42-year-old patient presents with heartburn >2×/week for 8 weeks, regurgitation, and mild
dysphagia. Most appropriate initial pharmacologic treatment? A. Ranitidine 150 mg BID B.
Omeprazole 20 mg once daily before breakfast ✓ CORRECT ANSWERC.
Metoclopramide 10 mg before meals D. Calcium carbonate antacid as needed
RATIONALE: PPIs such as omeprazole are first-line for GERD with frequent symptoms,
suppressing gastric acid more effectively than H2 blockers. Ranitidine is second-line; antacids
are symptomatic only; metoclopramide is for motility issues, not first-line GERD.
Q2. Which lifestyle modification is MOST effective in reducing GERD in an obese patient? A.
Avoiding spicy foods exclusively B. Sleeping on the right side C. Weight loss and elevation of
the head of the bed ✓ CORRECT ANSWERD. Increasing dietary fiber intake
RATIONALE: Weight loss reduces intra-abdominal pressure decreasing LES incompetence.
Elevating the head of bed 6–8 inches reduces nocturnal reflux. Sleeping on the right side
worsens GERD (left-lateral is recommended).
Q3. Patient on omeprazole 20 mg daily × 8 weeks without adequate relief. Best next step? A.
Switch to an H2 blocker B. Double the PPI dose or switch to a higher-potency PPI ✓
CORRECT ANSWERC. Refer immediately for fundoplication D. Add sucralfate
RATIONALE: For refractory GERD after standard-dose PPI × 8 weeks, double the dose or
switch to a more potent PPI (e.g., esomeprazole). Surgical referral is reserved for confirmed
refractory disease after medical optimization.
Q4. Which alarm symptom requires prompt endoscopic evaluation in suspected GERD? A. Mild
nausea after meals B. Belching and bloating C. Unintentional weight loss and progressive
dysphagia ✓ CORRECT ANSWERD. Nocturnal cough RATIONALE: Alarm/red flag
,symptoms for upper GI malignancy — unintentional weight loss, progressive dysphagia,
odynophagia, iron-deficiency anemia, hematemesis, or palpable mass — warrant urgent EGD.
Q5. Barrett's esophagus histologic change is: A. Intestinal metaplasia replacing squamous
epithelium in the distal esophagus ✓ CORRECT ANSWERB. Squamous cell hyperplasia
C. Eosinophilic infiltration D. Mucosal erosion into the muscularis propria RATIONALE:
Barrett's = replacement of stratified squamous epithelium with specialized intestinal metaplasia
(columnar epithelium with goblet cells), increasing risk of esophageal adenocarcinoma.
Q6. Barrett's esophagus without dysplasia surveillance interval: A. Annual EGD for all GERD
patients B. EGD every 6 months C. EGD surveillance every 3–5 years ✓ CORRECT
ANSWERD. Immediate esophagectomy RATIONALE: ACG guidelines — Barrett's
without dysplasia: EGD every 3–5 years. Low-grade dysplasia: every 6–12 months or
endoscopic eradication. High-grade: eradication therapy or surgery.
Q7. Foods with strongest evidence for reducing LES pressure and worsening GERD: A. Bananas
B. Chocolate and peppermint ✓ CORRECT ANSWERC. Whole grains D. Lean proteins
RATIONALE: Chocolate (methylxanthines + serotonin), peppermint, fatty foods, alcohol,
and caffeine directly reduce LES pressure. Bananas and whole grains are generally GERD-
neutral.
Q8. CORRECT ANSWERtiming for omeprazole administration: A. Take with food B. Take
at bedtime C. Take 30–60 minutes before the first meal of the day ✓ CORRECT
ANSWERD. Take with antacids RATIONALE: PPIs are prodrugs requiring activation by
parietal cell H⁺/K⁺-ATPase. Most effective 30–60 minutes before eating, when food stimulates
parietal cell activity needed to activate the PPI.
Q9. Long-term PPI use is associated with: A. Hypercalcemia and nephrolithiasis B.
Hypomagnesemia, vitamin B12 deficiency, and increased fracture risk ✓ CORRECT
ANSWERC. Hyperkalemia and metabolic alkalosis D. Hepatotoxicity RATIONALE:
Long-term PPI use: hypomagnesemia, B12 deficiency, hip/spine fracture risk, C. diff infection.
Monitor magnesium and B12 periodically.
,Q10. Safest GERD medication in a 16-week pregnant patient: A. Calcium carbonate antacid ✓
CORRECT ANSWERB. Omeprazole 20 mg daily C. Metoclopramide 10 mg before meals
D. Ranitidine 150 mg BID RATIONALE: Antacids (calcium carbonate) are safest first-line
in pregnancy — not systemically absorbed, no fetal risk. PPIs and H2 blockers are options if
antacids fail.
Q11. Eosinophilic esophagitis — all TRUE except: A. Food impaction and dysphagia B. ≥15
eosinophils/HPF on esophageal biopsy C. Strong association with atopy and food allergies D.
Resolution of symptoms with PPI therapy alone in all cases ✓ CORRECT
ANSWERRATIONALE: EoE is immune/antigen-mediated. Treatment typically requires
dietary elimination and/or topical swallowed corticosteroids. EoE does NOT resolve with PPI
alone in all cases.
Q12. Patient taking clopidogrel for cardiac stent — most appropriate PPI: A. Omeprazole B.
Esomeprazole C. Pantoprazole or rabeprazole — least CYP2C19 interaction ✓
CORRECT ANSWERD. Lansoprazole RATIONALE: Omeprazole and esomeprazole
strongly inhibit CYP2C19, reducing clopidogrel's antiplatelet activation. Pantoprazole and
rabeprazole have least CYP2C19 interaction and are preferred.
Q13. Gold standard for diagnosing GERD when diagnosis is uncertain: A. Barium esophagram
B. Upper endoscopy (EGD) C. 24-hour ambulatory pH monitoring ✓ CORRECT
ANSWERD. Esophageal manometry RATIONALE: Ambulatory 24-hour pH monitoring
is gold standard — measures acid exposure time and correlates symptoms with reflux events.
EGD may be normal in GERD.
Q14. Patient with persistent GERD despite twice-daily PPI, lifestyle changes, and confirmed
compliance. Next step: A. Add H2 blocker at bedtime B. Increase PPI to three times daily C.
Refer to gastroenterology for pH impedance testing ✓ CORRECT ANSWERD.
Prescribe baclofen RATIONALE: Refractory GERD despite optimized twice-daily PPI
warrants GI referral. pH-impedance testing identifies non-acid reflux, functional heartburn, or
true refractory GERD.
, Q15. Sour taste in mouth, morning cough, nocturnal coughing — GERD-related condition: A.
Peptic ulcer disease B. Laryngopharyngeal reflux (LPR) ✓ CORRECT ANSWERC.
Achalasia D. Zenker's diverticulum RATIONALE: LPR (extraesophageal GERD) — acid
refluxes into laryngopharynx causing hoarseness, throat clearing, post-nasal drip, chronic
cough, sour taste — often without classic heartburn.
Q16. Most common type of hiatal hernia: A. Type I — sliding hiatal hernia ✓ CORRECT
ANSWERB. Type II — paraesophageal hernia C. Type III — mixed hernia D. Type IV —
large mixed hernia RATIONALE: Type I (sliding) accounts for ~95% of hiatal hernias. GEJ
and gastric cardia slide above the diaphragm. Strongly correlates with GERD.
Q17. Most appropriate initial approach to a 28-year-old with classic GERD, no alarm features:
A. Order upper endoscopy first B. Order H. pylori serology first C. Empiric PPI trial with
lifestyle modifications ✓ CORRECT ANSWERD. Refer to gastroenterology before
treatment RATIONALE: For patients <60 without alarm symptoms, empiric 4–8-week PPI
trial with lifestyle modifications is both diagnostic and therapeutic. EGD reserved for alarm
features, age ≥60, or PPI failure.
Q18. Long-term PPI use without periodic reassessment: A. Contraindicated in Barrett's
esophagus B. Contraindicated with chronic NSAID use C. No absolute contraindication, but
ongoing need must be reassessed periodically ✓ CORRECT ANSWERD.
Contraindicated with warfarin RATIONALE: PPIs have no absolute contraindication for
long-term use, but lowest effective dose and periodic reassessment (at least annually) are
recommended per guidelines.
Q19. GERD patient with solid food dysphagia; EGD shows mucosal rings and linear furrows.
Most likely diagnosis: A. Barrett's esophagus B. Esophageal adenocarcinoma C. Eosinophilic
esophagitis (EoE) ✓ CORRECT ANSWERD. Esophageal stricture from GERD
RATIONALE: EoE — dysphagia to solids, food impaction; endoscopy: rings
(trachealization), linear furrows, white exudates. Diagnosis: ≥15 eos/HPF after PPI trial.
