Wilkes NSG 533 Exam 1 Advanced Pharmacology
, Pass with Confidence.
Question 1
What is the standard first-line treatment regimen for Helicobacter pylori
infection in a patient without penicillin allergy and low clarithromycin
resistance?
A) Metronidazole + Tetracycline + Bismuth + PPI
B) Clarithromycin + Amoxicillin or Metronidazole + PPI
C) Clarithromycin + Metronidazole + Bismuth + PPI
D) Amoxicillin + Metronidazole + Tetracycline without PPI
Answer: B) Clarithromycin + Amoxicillin or Metronidazole + PPI
Explanation: This clarithromycin triple therapy is standard in areas
with low clarithromycin resistance and no penicillin allergy.
Clarithromycin inhibits bacterial protein synthesis; amoxicillin or
metronidazole provides cell wall or DNA disruption; PPI reduces
gastric acidity, enhancing antibiotic activity and mucosal healing.
Question 2
Which of the following is the nonbismuth-based quadruple therapy used to
treat H. pylori infection?
A) Amoxicillin + Clarithromycin + Metronidazole + PPI
B) Bismuth + Metronidazole + Tetracycline + PPI
,C) Clarithromycin + Metronidazole + Amoxicillin without PPI
D) Amoxicillin + Clarithromycin + Bismuth + PPI
Answer: A) Amoxicillin + Clarithromycin + Metronidazole + PPI
Explanation: This regimen, called concomitant therapy, uses three
antibiotics plus PPI to overcome resistance and improve eradication
rates, especially in areas with high clarithromycin resistance or
prior treatment failure.
Question 3
A patient with a penicillin allergy requires treatment for H. pylori. Which
regimen is recommended?
A) Clarithromycin + Amoxicillin + PPI
B) Bismuth subsalicylate + Metronidazole + Tetracycline + PPI
C) Clarithromycin + Metronidazole + Amoxicillin + PPI
D) Metronidazole + Amoxicillin + PPI
Answer: B) Bismuth subsalicylate + Metronidazole + Tetracycline +
PPI
Explanation: Penicillin allergy precludes amoxicillin use; the bismuth
quadruple regimen is preferred, combining bismuth's mucosal
protective and antimicrobial effects with metronidazole and
tetracycline antibiotics plus acid suppression.
,Question 4
Which proton pump inhibitor (PPI) is considered the most efficacious for
acid suppression in GERD?
A) Omeprazole only
B) Esomeprazole only
C) All PPIs have similar efficacy when dosed appropriately
D) Pantoprazole only
Answer: C) All PPIs have similar efficacy when dosed appropriately
Explanation: Head-to-head trials demonstrate similar effectiveness
of all PPIs in symptom relief and mucosal healing. Choice depends
mainly on availability, cost, and patient factors.
Question 5
Which of the following lifestyle modifications is NOT recommended for
managing gastroesophageal reflux disease (GERD)?
A) Eating smaller meals
B) Losing weight
C) Smoking cessation
D) Eating large fatty meals before bedtime
Answer: D) Eating large fatty meals before bedtime
Explanation: Large fatty meals relax the lower esophageal sphincter
and delay gastric emptying, worsening GERD symptoms.
Recommended are smaller meals, weight loss, elevating the head of
bed, and avoiding smoking and alcohol.
, Question 6
Which type of over-the-counter (OTC) medication is best suited for
treating mild diarrhea by absorbing excess stool water?
A) Bulk-forming agents (e.g., psyllium)
B) Antimotility agents (e.g., loperamide)
C) Antisecretory agents (e.g., bismuth subsalicylate)
D) Stimulant laxatives (e.g., bisacodyl)
Answer: A) Bulk-forming agents (e.g., psyllium)
Explanation: Bulk-forming fibers absorb water, adding stool bulk and
normalizing consistency, suitable for mild, non-infectious diarrhea.
Question 7
A patient has been diagnosed today with T2DM. A criterion for diagnosis is:
A) An abnormal blood glucose
B) Proteinuria
C) A fasting glucose > or equal to 126 and confirmed on a previous day
D) An abnormal postprandial glucose
Answer: C) A fasting glucose > or equal to 126 and confirmed on a
previous day
Explanation: T2DM is diagnosed after a random fasting glucose
greater than or equal to 126 mg/dL and confirmed on a subsequent
day. Other diagnostic criteria include a random glucose >200 mg/dL
, Pass with Confidence.
Question 1
What is the standard first-line treatment regimen for Helicobacter pylori
infection in a patient without penicillin allergy and low clarithromycin
resistance?
A) Metronidazole + Tetracycline + Bismuth + PPI
B) Clarithromycin + Amoxicillin or Metronidazole + PPI
C) Clarithromycin + Metronidazole + Bismuth + PPI
D) Amoxicillin + Metronidazole + Tetracycline without PPI
Answer: B) Clarithromycin + Amoxicillin or Metronidazole + PPI
Explanation: This clarithromycin triple therapy is standard in areas
with low clarithromycin resistance and no penicillin allergy.
Clarithromycin inhibits bacterial protein synthesis; amoxicillin or
metronidazole provides cell wall or DNA disruption; PPI reduces
gastric acidity, enhancing antibiotic activity and mucosal healing.
Question 2
Which of the following is the nonbismuth-based quadruple therapy used to
treat H. pylori infection?
A) Amoxicillin + Clarithromycin + Metronidazole + PPI
B) Bismuth + Metronidazole + Tetracycline + PPI
,C) Clarithromycin + Metronidazole + Amoxicillin without PPI
D) Amoxicillin + Clarithromycin + Bismuth + PPI
Answer: A) Amoxicillin + Clarithromycin + Metronidazole + PPI
Explanation: This regimen, called concomitant therapy, uses three
antibiotics plus PPI to overcome resistance and improve eradication
rates, especially in areas with high clarithromycin resistance or
prior treatment failure.
Question 3
A patient with a penicillin allergy requires treatment for H. pylori. Which
regimen is recommended?
A) Clarithromycin + Amoxicillin + PPI
B) Bismuth subsalicylate + Metronidazole + Tetracycline + PPI
C) Clarithromycin + Metronidazole + Amoxicillin + PPI
D) Metronidazole + Amoxicillin + PPI
Answer: B) Bismuth subsalicylate + Metronidazole + Tetracycline +
PPI
Explanation: Penicillin allergy precludes amoxicillin use; the bismuth
quadruple regimen is preferred, combining bismuth's mucosal
protective and antimicrobial effects with metronidazole and
tetracycline antibiotics plus acid suppression.
,Question 4
Which proton pump inhibitor (PPI) is considered the most efficacious for
acid suppression in GERD?
A) Omeprazole only
B) Esomeprazole only
C) All PPIs have similar efficacy when dosed appropriately
D) Pantoprazole only
Answer: C) All PPIs have similar efficacy when dosed appropriately
Explanation: Head-to-head trials demonstrate similar effectiveness
of all PPIs in symptom relief and mucosal healing. Choice depends
mainly on availability, cost, and patient factors.
Question 5
Which of the following lifestyle modifications is NOT recommended for
managing gastroesophageal reflux disease (GERD)?
A) Eating smaller meals
B) Losing weight
C) Smoking cessation
D) Eating large fatty meals before bedtime
Answer: D) Eating large fatty meals before bedtime
Explanation: Large fatty meals relax the lower esophageal sphincter
and delay gastric emptying, worsening GERD symptoms.
Recommended are smaller meals, weight loss, elevating the head of
bed, and avoiding smoking and alcohol.
, Question 6
Which type of over-the-counter (OTC) medication is best suited for
treating mild diarrhea by absorbing excess stool water?
A) Bulk-forming agents (e.g., psyllium)
B) Antimotility agents (e.g., loperamide)
C) Antisecretory agents (e.g., bismuth subsalicylate)
D) Stimulant laxatives (e.g., bisacodyl)
Answer: A) Bulk-forming agents (e.g., psyllium)
Explanation: Bulk-forming fibers absorb water, adding stool bulk and
normalizing consistency, suitable for mild, non-infectious diarrhea.
Question 7
A patient has been diagnosed today with T2DM. A criterion for diagnosis is:
A) An abnormal blood glucose
B) Proteinuria
C) A fasting glucose > or equal to 126 and confirmed on a previous day
D) An abnormal postprandial glucose
Answer: C) A fasting glucose > or equal to 126 and confirmed on a
previous day
Explanation: T2DM is diagnosed after a random fasting glucose
greater than or equal to 126 mg/dL and confirmed on a subsequent
day. Other diagnostic criteria include a random glucose >200 mg/dL
