A client with gastrointestinal complaints asks how over-the-counter bismuth subsalicylate (pepto bismol) helps. Which response will the nurse make?
"It directly stimulates prostaglandin E1 receptors to help protect the stomach."
"It decreases flow of fluids into bowel, reduces inflammation, and may kill the organism causing diarrhea.”
"It coats the stomach and aids in the healing of the stomach lining."
"It inhibits the proton pump in the stomach which generates gastric acid."
The Correct Answer is B
A. "It directly stimulates prostaglandin E1 receptors to help protect the stomach” Prostaglandin analogs like misoprostol work by stimulating prostaglandin receptors. Bismuth’s action is more antimicrobial and anti-inflammatory, not receptor-based.
B. "It decreases flow of fluids into bowel, reduces inflammation, and may kill the organism causing diarrhea.” Bismuth subsalicylate has multiple effects: it reduces intestinal secretions, has anti-inflammatory properties due to its salicylate component, and possesses antimicrobial activity, especially against H. pylori and other diarrheal pathogens.
C. "It coats the stomach and aids in the healing of the stomach lining.” While bismuth does provide a mild protective effect, it is not primarily a mucosal-coating agent. Sucralfate is more effective for mucosal coating and ulcer protection than bismuth subsalicylate.
D. "It inhibits the proton pump in the stomach which generates gastric acid.” This describes the mechanism of proton-pump inhibitors (PPIs) like omeprazole. Bismuth subsalicylate does not block acid production at the cellular level.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Abdominal pain: Loperamide is not indicated for isolated abdominal pain and may actually worsen symptoms if used inappropriately, especially if the pain is related to a bowel obstruction or inflammatory condition.
B. Infection: While diarrhea may accompany infection, loperamide is typically avoided in infectious diarrhea, especially when caused by bacteria or toxins, because it can delay pathogen clearance and worsen the illness.
C. Diarrhea: Loperamide is an antidiarrheal agent that slows intestinal motility, allowing more fluid absorption in the colon. It is commonly prescribed PRN for symptomatic relief of non-infectious diarrhea.
D. Constipation: Administering loperamide in the setting of constipation would exacerbate the condition. It further reduces bowel motility, increasing the risk of fecal impaction or ileus.
Correct Answer is A
Explanation
A. Oxybutynin: Oxybutynin is an anticholinergic that reduces bladder spasms by relaxing the detrusor muscle. It is commonly prescribed post-TURP to relieve discomfort caused by involuntary bladder contractions, especially when a catheter is in place.
B. Phenazopyridine: Phenazopyridine is a urinary analgesic that helps relieve pain, burning, and urgency associated with urinary tract irritation. However, it does not address the underlying muscle spasms that occur post-TURP.
C. Finasteride: Finasteride is a 5-alpha-reductase inhibitor used for long-term management of BPH by shrinking the prostate. It is not effective for acute relief of post-procedural bladder spasms and works slowly over months.
D. Tamsulosin: Tamsulosin is an alpha-1 blocker that relaxes prostatic and bladder neck muscles to improve urine flow. While useful in BPH management, it does not treat the muscle spasms that can occur after catheterization or TURP.
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