A patient asks the nurse to define hypersensitivity reaction. The nurse begins by telling the patient that a hypersensitivity reaction is also called:

antagonistic reaction

drug idiosyncracy

synergistic reaction

allergic reaction

Answer and Explanation

The Correct Answer is D

A. Antagonistic reaction:

An antagonistic reaction refers to a response where one substance opposes the action of another substance. In the context of hypersensitivity reactions, this term does not accurately describe the immune system's response to an allergen. Hypersensitivity reactions involve an overreaction of the immune system to a harmless substance, rather than opposing actions between substances. Therefore, choice A is not the correct term to describe hypersensitivity reactions.

B. Drug idiosyncrasy:

Drug idiosyncrasy refers to an unusual or unexpected response to a medication that is not related to the known pharmacological properties of the drug or the patient's characteristics. While idiosyncratic drug reactions can sometimes involve immune-mediated mechanisms, they are not synonymous with hypersensitivity reactions. Hypersensitivity reactions specifically involve the immune system's exaggerated response to an allergen, which may or may not be a medication. Therefore, while drug idiosyncrasy may involve unpredictable reactions, it does not specifically address the immune-mediated nature of hypersensitivity reactions.

C. Synergistic reaction:

A synergistic reaction occurs when the combined effect of two substances is greater than the sum of their individual effects. In the context of hypersensitivity reactions, this term does not accurately describe the immune system's response to an allergen. Hypersensitivity reactions involve an exaggerated response of the immune system to an allergen, rather than a synergistic interaction between substances. Therefore, choice C is not the correct term to describe hypersensitivity reactions.

D. Allergic reaction:

An allergic reaction is the correct term to describe hypersensitivity reactions. Hypersensitivity reactions involve the immune system's exaggerated response to a harmless substance, known as an allergen. This response can manifest in various symptoms, ranging from mild to severe, depending on the individual's sensitivity and the nature of the allergen. Allergic reactions can affect different organ systems and can be triggered by a wide range of substances, including foods, medications, environmental allergens, and insect venom. Therefore, choice D accurately describes hypersensitivity reactions.

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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.

A. Not affected B. delayed C. increased D. decreased

Correct Answer is D

Explanation

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.

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A patient asks the nurse to define hypersensitivity reaction. The nurse begins by telling the patient that a hypersensitivity reaction is also called:

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Naxlex Comprehensive Predictor Exams

When asked if there are any regulatory controls on herbal or dietary supplements, the nurse responds to the client by informing him that herbal and dietary supplements are regulated by the:

Correct Answer is D

Explanation

A nurse instructs the patient that if ciprofloxacin (Cipro) is taken with antacids, absorption is

Correct Answer is D

Explanation

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