SGNA Medications and Pharmacology 2

Question 1

What is the primary mechanism of action of bisacodyl (Dulcolax)?

Accepted Answer

Stimulates intestinal peristalsis and increases fluid secretion

Answer

Bisacodyl is a stimulant laxative that directly stimulates colonic smooth muscle and nerve endings, increasing peristalsis and promoting bowel movements.

Question 2

A patient is on warfarin therapy and needs an elective colonoscopy with polypectomy. What is the standard management approach?

Accepted Answer

Temporarily hold warfarin per provider guidance and monitor INR

Answer

Warfarin is typically held 5 days before high-bleed-risk procedures like polypectomy, with INR checked pre-procedure and bridge therapy considered based on thromboembolic risk.

Question 3

Which medication is used to treat Helicobacter pylori infection as part of standard triple therapy?

Accepted Answer

Clarithromycin + amoxicillin + proton pump inhibitor

Answer

Standard first-line H. pylori triple therapy combines clarithromycin, amoxicillin, and a PPI for 10–14 days to eradicate the organism causing peptic ulcer disease.

Question 4

Dicyclomine (Bentyl) is an antispasmodic used in GI patients. What is its drug class?

Accepted Answer

Anticholinergic (antimuscarinic)

Answer

Dicyclomine is an anticholinergic agent that blocks muscarinic receptors, reducing smooth muscle spasm in the GI tract and treating irritable bowel syndrome symptoms.

Question 5

Simethicone is administered before upper endoscopy for which reason?

Accepted Answer

Reduce gas bubbles to improve mucosal visualization

Answer

Simethicone is an anti-foaming agent that coalesces gas bubbles in the GI tract, clearing the visual field during endoscopy for better mucosal inspection.

SGNA - Society of Gastroenterology Nurses and Associates Practice Test

SGNA - Society of Gastroenterology Nurses and Associates Practice Test

SGNA Medications and Pharmacology 2