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 ["A","B","C","F"]
Explanation
The correct answer is A. Ventilation, B. Neurological status, C. Exposure, F. Circulation.
Choice A: Ventilation Ventilation is a crucial part of the primary survey in trauma assessment. It involves assessing the patient’s respiratory rate and effort, use of accessory muscles, cyanosis, and chest wall movement. The normal respiratory rate for adults is between 12-20 breaths per minute.
Choice B: Neurological status Neurological status is another vital component of the primary survey. It often involves assessing the patient’s level of consciousness, often using tools like the Glasgow Coma Scale (GCS). The GCS score can range from 3 (completely unresponsive) to 15 (responsive).
Choice C: Exposure Exposure involves removing the patient’s clothing to check for any hidden injuries. It’s an essential step in trauma assessment, but there’s no “normal range” for this as it’s a process rather than a measurable variable.
Choice D: Current medications While knowing a patient’s current medications is important in managing their care, it’s not typically part of the primary survey in trauma assessment. This information is usually gathered during the secondary survey.
Choice E: Allergies Like current medications, information about allergies is also crucial in managing patient care, but it’s not part of the primary survey. This information is usually collected during the secondary survey.
Choice F: Circulation Circulation is a critical part of the primary survey. It involves checking the patient’s heart rate, blood pressure, capillary refill time, and looking for any signs of external bleeding. The normal resting heart rate can range between 60-99 beats per minute.
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.
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