A nurse instructs the patient that if ciprofloxacin (Cipro) is taken with antacids, absorption is
Not affected
delayed
increased
decreased
The Correct Answer is D
A. Not affected:
This choice suggests that taking ciprofloxacin with antacids does not alter its absorption. However, this is not correct. When ciprofloxacin is taken with antacids containing certain ions (such as aluminum, magnesium, or calcium), the absorption of ciprofloxacin can indeed be affected due to the formation of insoluble complexes, leading to decreased absorption.
B. Delayed:
This choice implies that taking ciprofloxacin with antacids delays its absorption. While it's true that the interaction between ciprofloxacin and certain antacids can alter absorption, the main effect is not typically a delay in absorption but rather a decrease due to the formation of insoluble complexes. Therefore, while "delayed" may somewhat describe the effect, it doesn't fully capture the nature of the interaction.
C. Increased:
This choice suggests that taking ciprofloxacin with antacids increases its absorption. However, this is not accurate. Antacids containing aluminum, magnesium, or calcium can interfere with the absorption of ciprofloxacin by forming insoluble complexes with the drug, leading to decreased absorption rather than an increase.
D. Decreased:
This choice correctly identifies the effect of taking ciprofloxacin with antacids. When ciprofloxacin is taken concurrently with antacids containing aluminum, magnesium, or calcium, the absorption of ciprofloxacin is decreased. The ions in the antacids bind with ciprofloxacin in the gastrointestinal tract, forming insoluble complexes that are poorly absorbed, thereby reducing the effectiveness of the antibiotic.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The patient stops taking the drug when he or she begins to feel better:
This choice refers to the common habit where patients discontinue their prescribed medication once they start to feel improvement in their symptoms, even if they haven't completed the full course of treatment. This premature cessation of medication can leave some microbes alive and potentially resistant to the antibiotic, allowing them to regrow and cause a recurrence of the infection.
B. The patient switches to multiple drug therapy from single drug therapy:
This choice describes a scenario where a patient switches from a single drug therapy to multiple drug therapy. While this may be a valid treatment approach in some cases, it is not directly related to the re-population and re-establishment of microbes causing an infection.
C. The patient uses OTC drugs prophylactically:
This choice involves patients using over-the-counter (OTC) drugs preventively without consulting a healthcare professional. While OTC drugs may have their own set of issues, such as contributing to antibiotic resistance, this behavior isn't specifically linked to the re-population and re-establishment of microbes causing an infection.
D. The patient increases the drug dosage when he or she perceives that the therapeutic effect of the drug is slowing down:
This choice describes a scenario where a patient independently increases the dosage of their medication without consulting a healthcare provider. While inappropriate dosage adjustments can lead to adverse effects, it doesn't directly address the re-population and re-establishment of microbes causing an infection.
Correct Answer is D
Explanation
A. Food, Drug and Cosmetic Act:
The Food, Drug, and Cosmetic Act (FD&C Act) is a federal law that regulates the manufacturing, labeling, and distribution of food, drugs, cosmetics, and medical devices in the United States. While the FD&C Act does provide some regulatory authority over certain aspects of dietary supplements, such as labeling requirements and good manufacturing practices, it is not the primary law governing the regulation of herbal and dietary supplements.
B. Joint Commission on the Accreditation of Healthcare Organizations:
The Joint Commission on the Accreditation of Healthcare Organizations (JCAHO), now known as The Joint Commission, is an independent, nonprofit organization that accredits and certifies healthcare organizations and programs in the United States. However, The Joint Commission is not responsible for regulating herbal and dietary supplements.
C. Health and Human Services (HHS):
The Department of Health and Human Services (HHS) is a cabinet-level executive branch department of the U.S. federal government. While HHS oversees various health-related agencies, including the Food and Drug Administration (FDA), it is not the primary regulatory authority for herbal and dietary supplements.
D. Dietary Supplement Health and Education Act (DSHEA):
The Dietary Supplement Health and Education Act (DSHEA) of 1994 is the primary law that regulates herbal and dietary supplements in the United States. DSHEA defines dietary supplements, sets forth labeling requirements, establishes good manufacturing practices, and outlines the responsibilities of manufacturers and distributors of dietary supplements. Under DSHEA, dietary supplements are regulated as a category of food rather than as drugs.
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