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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
While seizure precautions are important for clients receiving certain medications or with certain conditions, they are not typically necessary for clients receiving dopamine. Dopamine, an adrenergic agonist, does not typically increase the risk of seizures.
Choice B rationale
Assessing pupillary response to light hourly is not typically necessary for clients receiving dopamine. Dopamine does not typically affect pupillary response.
Choice C rationale
Measuring urinary output every hour is an important intervention for a client receiving dopamine. Dopamine at low to moderate doses can dilate renal blood vessels, which can increase urine output. Therefore, monitoring urinary output can help assess the effectiveness of the medication and the client’s renal perfusion.
Choice D rationale
While it is important to monitor electrolyte levels in clients receiving certain medications, frequent monitoring of serum potassium is not typically necessary for clients receiving dopamine. Dopamine does not typically affect serum potassium levels.
Correct Answer is ["A","C","D"]
Explanation
Choice A rationale
Orange juice is a clear liquid and is allowed in the Mormon faith.
Choice B rationale
Hot chocolate is not a clear liquid and is not typically consumed by individuals who follow Mormon beliefs due to its caffeine content.
Choice C rationale
Apple juice is a clear liquid and is allowed in the Mormon faith.
Choice D rationale
Chicken broth is a clear liquid and is allowed in the Mormon faith.
Choice E rationale
Black coffee is not a clear liquid and is not typically consumed by individuals who follow Mormon beliefs due to its caffeine content.
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