The nurse is planning to administer an antacid to a patient diagnosed with PUD who will receive an H2 antagonist at 8:00 AM. When is the most appropriate time for the nurse to provide the antacid to this patient?
2 hours after the H2 antagonist
Within an hour after the H2 antagonist
With the H2 antagonist
30 minutes prior to the H2 antagonist
The Correct Answer is A
A. 2 hours after the H2 antagonist: Antacids should be administered at least 1 to 2 hours after H2 antagonists to avoid reducing the effectiveness of the H2 antagonist. H2 antagonists work by reducing stomach acid, and antacids neutralize it, so taking them too close together may reduce the effectiveness of both.
B. Within an hour after the H2 antagonist: This is incorrect because taking an antacid too soon after an H2 antagonist can interfere with the drug's action.
C. With the H2 antagonist: This is incorrect because administering antacids with an H2 antagonist could reduce the effectiveness of both medications.
D. 30 minutes prior to the H2 antagonist: This is incorrect because antacids should not be given before the H2 antagonist, as it may decrease the medication's effectiveness.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Serotonin antagonists: Serotonin antagonists are effective for nausea caused by chemotherapy or other medical treatments but are not the first line of treatment for motion sickness.
B. Corticosteroids: Corticosteroids are used for inflammation and immune response modulation but are not effective in preventing motion sickness.
C. Phenothiazines: While phenothiazines (e.g., promethazine) are used to treat nausea and vomiting, they are less commonly used for motion sickness prevention compared to anticholinergics.
D. Anticholinergics: Anticholinergic medications like scopolamine are the most effective for preventing motion sickness. They work by blocking the action of acetylcholine, a neurotransmitter involved in nausea and vomiting.
Correct Answer is B
Explanation
A. Herpes zoster: This virus causes shingles, not PUD.
B. H. pylori: This bacterium is the leading cause of PUD, contributing to ulcer formation by damaging the stomach lining and increasing acid production.
C. Candida albicans: This is a fungal infection that causes oral thrush or systemic infections, not PUD.
D. Escherichia coli: This bacterium is associated with gastrointestinal infections and urinary tract infections but not typically PUD.
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