A client diagnosed with peptic ulcer disease is experiencing fewer symptoms because of suppression of hydrochloric acid secretion into the lumen of the stomach. The nurse expects the client is most likely receiving which category of medication?

antipeptic agent

histamine-2 antagonist

proton pump inhibitor

prostaglandin

Answer and Explanation

The Correct Answer is C

A. antipeptic agent: Antipeptic agents, such as sucralfate, protect the ulcer site by forming a barrier over the lesion but do not reduce hydrochloric acid secretion. They provide symptomatic relief by shielding the stomach lining rather than altering acid production levels.

B. histamine-2 antagonist: H2-receptor antagonists like ranitidine or famotidine reduce acid secretion by blocking histamine receptors in the stomach lining. While effective, they are generally less potent than proton pump inhibitors in suppressing hydrochloric acid production

C. proton pump inhibitor: PPIs such as omeprazole or pantoprazole directly inhibit the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells. This action effectively blocks the final step in acid production, making them the most effective class for suppressing hydrochloric acid secretion.

D. prostaglandin: Prostaglandin analogs, like misoprostol, help protect the gastric mucosa by increasing mucus and bicarbonate production. They also mildly reduce acid secretion but are primarily used to prevent ulcers caused by NSAIDs rather than to suppress acid.

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Correct Answer is D

Explanation

A. sucralfate: Sucralfate is a gastrointestinal protectant used to treat and prevent ulcers by forming a barrier over damaged mucosa. It does not affect the vomiting center or chemoreceptor trigger zone and has no antiemetic properties.

B. bisacodyl: Bisacodyl is a stimulant laxative used to treat constipation by increasing peristalsis and fluid accumulation in the colon. It is not used for nausea or vomiting and has no action on the central nervous system.

C. omeprazole: Omeprazole is a proton pump inhibitor that decreases gastric acid secretion. It is used to manage GERD and peptic ulcers but has no antiemetic effects or influence on the chemoreceptor trigger zone.

D. prochlorperazine: Prochlorperazine is a phenothiazine antiemetic that works by blocking dopamine receptors in the chemoreceptor trigger zone. It is frequently used to manage nausea, vomiting, and vertigo.

A. laxative dependence B. stomach ulcers C. reflux disease D. laxative toxicity

Correct Answer is A

Explanation

A. laxative dependence: Chronic use of stimulant laxatives can lead to the bowel becoming reliant on external stimulation for defecation. Over time, this weakens natural peristalsis and results in need for progressively stronger doses or continued use to maintain bowel movements.

B. stomach ulcers: Stomach ulcers are typically caused by factors such as Helicobacter pylori infection or NSAID overuse. Laxatives do not erode the gastric lining or contribute to ulcer formation as part of their mechanism of action.

C. reflux disease: Gastroesophageal reflux disease (GERD) results from lower esophageal sphincter dysfunction and is unrelated to laxative use. Laxatives affect the colon and rectum, not the upper gastrointestinal structures involved in reflux.

D. laxative toxicity: While laxative abuse can lead to electrolyte imbalances, especially hypokalemia, "laxative toxicity" is not a widely recognized or specific medical condition. The main clinical concern is dependence, not toxicity per se.

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A client diagnosed with peptic ulcer disease is experiencing fewer symptoms because of suppression of hydrochloric acid secretion into the lumen of the stomach. The nurse expects the client is most likely receiving which category of medication?

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Naxlex Comprehensive Predictor Exams

Which of the following medications is an antiemetic agent?

Correct Answer is D

Explanation

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Correct Answer is A

Explanation

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