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
Using a cushion when sitting can provide comfort but does not directly address the client’s electrolyte imbalance, elevated blood pressure, or weight gain.

Choice B rationale
Offering a high protein diet can be beneficial for clients with hepatic failure to support liver regeneration and prevent malnutrition. However, it does not directly address the client’s immediate issues.

Choice C rationale

Providing only distilled water does not address the client’s electrolyte imbalance, elevated blood pressure, or weight gain. In fact, it could potentially exacerbate electrolyte imbalances.

Choice D rationale
Documenting abdominal girth can help monitor for fluid accumulation (ascites), a common complication of hepatic failure that can contribute to weight gain and elevated blood pressure.

Correct Answer is ["1.8"]

Explanation

The client weighs 132 pounds. To convert pounds to kilograms, divide the weight in pounds by

2.2. So, the client’s weight in kilograms is: Step 1: 132 pounds ÷ 2.2 = 60 kg The prescription for dantrolene is 1.5 mg/kg. To find out how many milligrams the client should receive, multiply the client’s weight in kilograms by the dosage in mg/kg: Step 2: 60 kg × 1.5 mg/kg = 90 mg The vial is reconstituted to yield a concentration of 50 mg/mL. To find out how many mL the nurse should administer, divide the total dosage in milligrams by the concentration in mg/mL: Step 3: 90 mg ÷ 50 mg/mL = 1.8 mL So, the nurse should administer 1.8 mL of dantrolene.

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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

The nurse identifies an electrolyte imbalance, elevated blood pressure, and a weight gain of 4.4 lbs (2 kg) in 24 hours in a client with hepatic failure. Which intervention should the nurse include in the plan of care?

Correct Answer is D

Explanation

Correct Answer is ["1.8"]

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?

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A client with schizophrenia is admitted to the hospital reporting auditory hallucinations. Which query is most important for the nurse to include in the client’s assessment?

A client with hepatic failure has an electrolyte imbalance, elevated blood pressure, and a weight gain of 4.4 lbs (2 kg) in 24 hours. What intervention should the nurse include in the plan of care?