The nurse is about to administer a histamine 2-receptor antagonist to a patient with peptic ulcer disease. What is the primary purpose of this class of medication?

It reduces the amount of HCl secreted by the parietal cells in the stomach.

It destroys the microorganisms causing inflammation in the stomach.

It neutralizes hydrochloric acid (HCl) in the stomach.

It inhibits the action of acetylcholine by blocking parasympathetic nerve endings.

Answer and Explanation

The Correct Answer is A

Choice A rationale
Histamine H2-receptor antagonists, also known as H2 blockers, are medications that help reduce the production of gastric acid. They achieve this by blocking H2 receptors in the parietal cells of the stomach, which are responsible for secreting hydrochloric acid (HCl)12. This reduction in acid secretion can help treat conditions such as peptic ulcers, gastroesophageal reflux disease (GERD), and Zollinger-Ellison syndrome, which are all conditions that can be exacerbated by excessive stomach acid.
Choice B rationale
While H2 blockers do help manage the symptoms of peptic ulcer disease, they do not directly destroy the microorganisms causing inflammation in the stomach. The primary cause of peptic ulcers is a bacterium called Helicobacter pylori, and the treatment for an H. pylori infection typically involves a combination of antibiotics and proton pump inhibitors, not H2 blockers.
Choice C rationale
H2 blockers do not neutralize hydrochloric acid (HCl) in the stomach. Instead, they work by reducing the amount of acid produced by the stomach. Antacids, not H2 blockers, are the class of drugs that work by neutralizing stomach acid.
Choice D rationale
H2 blockers do not inhibit the action of acetylcholine by blocking parasympathetic nerve endings. Anticholinergic medications are the ones that work by blocking the action of acetylcholine, a neurotransmitter that transmits signals in the nervous system.

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Correct Answer is D

Explanation

Choice A rationale
While switching to less anxiety-provoking questions might help in some situations, it does not address the immediate issue of the client undressing inappropriately.
Choice B rationale
Ignoring the client’s inappropriate behavior could potentially encourage further inappropriate actions and does not respect the therapeutic boundaries necessary in a nurse-client relationship.
Choice C rationale
Leaving the client’s room might escalate the situation further and does not address the immediate issue.
Choice D rationale
The nurse should assertively but respectfully communicate that undressing is not appropriate during the interview. This sets clear boundaries and expectations for the client’s behavior.

A. Blood glucose level of 90 mg/dL (5 mmol/L). B. Serum creatinine level of 5 mg/dL (442 µmol/L). C. Hemoglobin level of 13 g/dL (130 g/L). D. Potassium level of 4 mEq/L (4 mmol/L).

Correct Answer is B

Explanation

Choice A rationale
A blood glucose level of 90 mg/dL (5 mmol/L) is within the normal range and would not need to be reported to the surgeon.
Choice B rationale
A serum creatinine level of 5 mg/dL (442 µmol/L) is significantly elevated, indicating impaired kidney function. This is a critical lab value that should be reported to the surgeon immediately, as it could impact the patient’s ability to safely undergo surgery and recover postoperatively.

Choice C rationale
A hemoglobin level of 13 g/dL (130 g/L) is within the normal range and would not need to be reported to the surgeon.
Choice D rationale
A potassium level of 4 mEq/L (4 mmol/L) is within the normal range and would not need to be reported to the surgeon.

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The nurse is about to administer a histamine 2-receptor antagonist to a patient with peptic ulcer disease. What is the primary purpose of this class of medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is B

Explanation

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