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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Free Nursing Study Resources

Correct Answer is A

Explanation

Choice A rationale
Pregabalin is a medication used to treat nerve pain, particularly in conditions like diabetic peripheral neuropathy. A reduced level of pain would indicate that the medication is effective.
Choice B rationale
Improved visual acuity is not a typical outcome of pregabalin treatment for diabetic peripheral neuropathy. Pregabalin does not typically affect vision.
Choice C rationale
Full volume of pedal pulses is not a typical outcome of pregabalin treatment for diabetic peripheral neuropathy. Pregabalin does not typically affect circulation.
Choice D rationale
Granulating tissue in a foot ulcer is not a typical outcome of pregabalin treatment for diabetic peripheral neuropathy. Pregabalin does not typically affect wound healing.

A. Mix the dextrose in a 50 mL piggyback for a total volume of 100 mL. B. Dilute the dextrose in one liter of 0.9% normal saline solution. C. Ask the pharmacist to add the dextrose to a total parenteral nutrition (TPN) solution. D. Push the undiluted dextrose slowly through the currently infusing IV.

Correct Answer is D

Explanation

Choice A rationale
Mixing the dextrose in a 50 mL piggyback for a total volume of 100 mL is not the best method for administering the medication. This would dilute the dextrose, potentially reducing its effectiveness.
Choice B rationale
Diluting the dextrose in one liter of 0.9% normal saline solution is not the best method for administering the medication. This would significantly dilute the dextrose, potentially reducing its effectiveness.
Choice C rationale
Asking the pharmacist to add the dextrose to a total parenteral nutrition (TPN) solution is not the best method for administering the medication. This would not provide the immediate glucose boost needed to counteract insulin shock.
Choice D rationale

Pushing the undiluted dextrose slowly through the currently infusing IV is the best method for administering the medication. This allows for rapid administration of a concentrated glucose solution, which is necessary to quickly raise blood glucose levels in a patient experiencing insulin shock.

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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

A patient with diabetic peripheral neuropathy has been taking pregabalin for the past four days. Which finding would indicate to the nurse that the medication is effective?

Correct Answer is A

Explanation

A nurse is preparing a 50 mL dose of 50% dextrose IV for a patient experiencing insulin shock. What is the best method for administering the medication?

Correct Answer is D

Explanation

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