The LPN/LVN is aware that the bioavailability of a drug is based on multiple factors. Which factor(s) would be included? Select all that apply.

molecular weight

fat or liquid solubility

depth of breathing

development of a fever

presence of food

Answer and Explanation

Correct Answer : A,B,E

A. Molecular weight: Drugs with lower molecular weight tend to have higher bioavailability because they can more easily pass through biological membranes.

B. Fat or liquid solubility: Drugs that are fat-soluble can cross cell membranes more easily, affecting their bioavailability. Water-soluble drugs may require transport mechanisms, which can limit absorption.

C. Depth of breathing: The depth of breathing primarily affects the absorption of inhaled drugs, not the general bioavailability of orally or intravenously administered medications.

D. Development of a fever: While fever can affect drug metabolism, it doesn’t directly influence the bioavailability of a drug.

E. Presence of food: Food in the stomach can either enhance or inhibit drug absorption, depending on the drug’s characteristics. This directly impacts bioavailability.

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Correct Answer is D

Explanation

A. Verify that the patient is taking the medication as ordered: While it's important to verify medication adherence, this option doesn't fully address the need to ensure continued patient safety and care.

B. Schedule an appointment with the health-care provider: While follow-up appointments are important, this alone does not address the immediate need for a medication refill.

C. Ask the patient if this birth control method is effective: This question could be part of the conversation but is not the best response for addressing the refill request.

D. Document the message and ask the health-care provider for a refill and ensure patient schedules a follow-up appointment: This is the correct answer. It ensures that the patient receives the necessary medication without interruption and continues to receive appropriate follow-up care.

A. Nonscheduled medication B. Schedule III medication C. Schedule I medication D. Schedule V medication

Correct Answer is A

Explanation

A. Non-scheduled medication: OTC cough suppressants are typically classified as non-scheduled medications because they are not considered controlled substances and do not require a prescription for purchase.

B. Schedule III medication: Schedule III medications are controlled substances with a moderate potential for abuse and dependence. OTC cough suppressants do not fall under this category.

C. Schedule I medication: Schedule I medications are drugs with no accepted medical use and a high potential for abuse (e.g., heroin). OTC cough suppressants are not classified in this schedule.

D. Schedule V medication: Schedule V medications are controlled substances with a lower potential for abuse. While some cough medications containing codeine may be Schedule V, common OTC cough suppressants do not fall under this category unless they contain specific controlled substances.

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The LPN/LVN is aware that the bioavailability of a drug is based on multiple factors. Which factor(s) would be included? Select all that apply.

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

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