NCLEX-RN Pharmacology Practice
Questions: 20 Gastrointestinal System
Medication Safety MCQs with Detailed
Rationales |
ATI & NGN Style Nursing Exam Prep
Question 1
Clinical Scenario
A 65-year-old male with a history of chronic gastroesophageal reflux
disease (GERD) is being discharged with a new prescription for
omeprazole 20 mg daily. He has a history of mild osteopenia.
Question Stem
Which statement by the client indicates understanding of the
teaching regarding long-term omeprazole therapy?
A. "I will take this medication 30 minutes before my evening meal."
B. "I should increase my intake of calcium and vitamin D
supplements."
C. "I can crush the capsule and mix it with applesauce if I have
trouble swallowing."
D. "I will stop taking this medication immediately once my heartburn
resolves."
,Correct Answer
Correct Answer: B. "I should increase my intake of calcium and
vitamin D supplements."
Detailed Rationale
The correct answer is B. Long-term use of proton pump inhibitors
(PPIs) like omeprazole is associated with decreased gastric acid
production, which can impair the intestinal absorption of calcium,
magnesium, and vitamin B12. Over time, this significantly increases
the client's risk for osteoporosis and bone fractures. Therefore,
educating the client to ensure adequate calcium and vitamin D
intake is a crucial preventive safety measure. Option A is incorrect
because PPIs are most effective when administered 30 to 60
minutes before the first meal of the day (breakfast), not the evening
meal, to maximize the inhibition of meal-stimulated acid pumps.
Option C is incorrect because omeprazole delayed-release
capsules should not be crushed or chewed, as this destroys the
enteric coating designed to protect the medication from stomach
acid degradation. Option D is incorrect because PPIs should not be
stopped abruptly without provider guidance, as this can cause
rebound acid hypersecretion, worsening the client's GERD
symptoms.
Learning Objective
After completing this question, the learner should be able to:
• Identify the long-term adverse effects of proton pump inhibitors.
• Prioritize patient education regarding nutritional supplementation
for clients on chronic PPI therapy.
• Recognize the correct administration timing for delayed-release
PPI formulations.
,Medication Safety Focus
Patient education
Question 2
Clinical Scenario
A 78-year-old female with stage 3 chronic kidney disease (CKD) and
a history of dyspepsia is prescribed famotidine 20 mg twice daily.
Her most recent basic metabolic panel shows a blood urea nitrogen
(BUN) of 38 mg/dL and a serum creatinine of 2.1 mg/dL.
Question Stem
Which action should the nurse take prior to administering the first
dose of famotidine?
A. Administer the medication with a full glass of milk to prevent
gastric irritation.
B. Assess the client's bowel sounds to ensure no signs of paralytic
ileus are present.
C. Request a prescription for a reduced dose based on the client's
creatinine clearance.
D. Instruct the client to chew the tablet thoroughly before
swallowing to enhance absorption.
Correct Answer
Correct Answer: C. Request a prescription for a reduced dose based
on the client's creatinine clearance.
Detailed Rationale
The correct answer is C. Famotidine is an H2-receptor antagonist
that is primarily excreted unchanged by the kidneys. In clients with
, renal impairment, the drug can accumulate, significantly increasing
the risk of central nervous system (CNS) toxicity, which may
manifest as confusion, delirium, hallucinations, or seizures,
especially in older adults. The nurse must recognize the elevated
creatinine and request a dose adjustment (e.g., reducing the dose or
extending the dosing interval) based on the client's creatinine
clearance. Option A is incorrect because famotidine does not
require milk for administration and can be taken without regard to
meals. Option B is incorrect because assessing bowel sounds is not
a priority intervention specific to famotidine administration. Option
D is incorrect because famotidine tablets are designed to be
swallowed whole or dissolved in water, not chewed, and chewing
does not enhance its therapeutic absorption.
Learning Objective
After completing this question, the learner should be able to:
• Recognize the renal excretion pathway of H2-receptor antagonists.
• Identify signs of CNS toxicity associated with medication
accumulation in renal impairment.
• Prioritize dose verification for older adults with compromised
kidney function.
Medication Safety Focus
Monitoring / Renal impairment
Question 3
Clinical Scenario
A 52-year-old male receiving highly emetogenic chemotherapy for
colon cancer is prescribed ondansetron 8 mg IV push prior to the
Questions: 20 Gastrointestinal System
Medication Safety MCQs with Detailed
Rationales |
ATI & NGN Style Nursing Exam Prep
Question 1
Clinical Scenario
A 65-year-old male with a history of chronic gastroesophageal reflux
disease (GERD) is being discharged with a new prescription for
omeprazole 20 mg daily. He has a history of mild osteopenia.
Question Stem
Which statement by the client indicates understanding of the
teaching regarding long-term omeprazole therapy?
A. "I will take this medication 30 minutes before my evening meal."
B. "I should increase my intake of calcium and vitamin D
supplements."
C. "I can crush the capsule and mix it with applesauce if I have
trouble swallowing."
D. "I will stop taking this medication immediately once my heartburn
resolves."
,Correct Answer
Correct Answer: B. "I should increase my intake of calcium and
vitamin D supplements."
Detailed Rationale
The correct answer is B. Long-term use of proton pump inhibitors
(PPIs) like omeprazole is associated with decreased gastric acid
production, which can impair the intestinal absorption of calcium,
magnesium, and vitamin B12. Over time, this significantly increases
the client's risk for osteoporosis and bone fractures. Therefore,
educating the client to ensure adequate calcium and vitamin D
intake is a crucial preventive safety measure. Option A is incorrect
because PPIs are most effective when administered 30 to 60
minutes before the first meal of the day (breakfast), not the evening
meal, to maximize the inhibition of meal-stimulated acid pumps.
Option C is incorrect because omeprazole delayed-release
capsules should not be crushed or chewed, as this destroys the
enteric coating designed to protect the medication from stomach
acid degradation. Option D is incorrect because PPIs should not be
stopped abruptly without provider guidance, as this can cause
rebound acid hypersecretion, worsening the client's GERD
symptoms.
Learning Objective
After completing this question, the learner should be able to:
• Identify the long-term adverse effects of proton pump inhibitors.
• Prioritize patient education regarding nutritional supplementation
for clients on chronic PPI therapy.
• Recognize the correct administration timing for delayed-release
PPI formulations.
,Medication Safety Focus
Patient education
Question 2
Clinical Scenario
A 78-year-old female with stage 3 chronic kidney disease (CKD) and
a history of dyspepsia is prescribed famotidine 20 mg twice daily.
Her most recent basic metabolic panel shows a blood urea nitrogen
(BUN) of 38 mg/dL and a serum creatinine of 2.1 mg/dL.
Question Stem
Which action should the nurse take prior to administering the first
dose of famotidine?
A. Administer the medication with a full glass of milk to prevent
gastric irritation.
B. Assess the client's bowel sounds to ensure no signs of paralytic
ileus are present.
C. Request a prescription for a reduced dose based on the client's
creatinine clearance.
D. Instruct the client to chew the tablet thoroughly before
swallowing to enhance absorption.
Correct Answer
Correct Answer: C. Request a prescription for a reduced dose based
on the client's creatinine clearance.
Detailed Rationale
The correct answer is C. Famotidine is an H2-receptor antagonist
that is primarily excreted unchanged by the kidneys. In clients with
, renal impairment, the drug can accumulate, significantly increasing
the risk of central nervous system (CNS) toxicity, which may
manifest as confusion, delirium, hallucinations, or seizures,
especially in older adults. The nurse must recognize the elevated
creatinine and request a dose adjustment (e.g., reducing the dose or
extending the dosing interval) based on the client's creatinine
clearance. Option A is incorrect because famotidine does not
require milk for administration and can be taken without regard to
meals. Option B is incorrect because assessing bowel sounds is not
a priority intervention specific to famotidine administration. Option
D is incorrect because famotidine tablets are designed to be
swallowed whole or dissolved in water, not chewed, and chewing
does not enhance its therapeutic absorption.
Learning Objective
After completing this question, the learner should be able to:
• Recognize the renal excretion pathway of H2-receptor antagonists.
• Identify signs of CNS toxicity associated with medication
accumulation in renal impairment.
• Prioritize dose verification for older adults with compromised
kidney function.
Medication Safety Focus
Monitoring / Renal impairment
Question 3
Clinical Scenario
A 52-year-old male receiving highly emetogenic chemotherapy for
colon cancer is prescribed ondansetron 8 mg IV push prior to the
