PN Nclex Questions 2024 Related

Review PN Nclex Questions 2024 related questions and content

How can medication bound to protein affect drug availability?

  • A. enhanced drug availability
  • B. rapid distribution of the drug to receptor sites
  • C. less availability to produce desired medicinal effects
  • D. increased metabolism of the drug by the liver
Correct Answer: C

Rationale: Medication bound to protein reduces the availability of the drug to produce desired medicinal effects because only unbound drugs can effectively bind to active receptor sites. When a drug is bound to protein, it cannot bind with receptor sites, limiting its therapeutic impact. Choice A is incorrect because drug availability is reduced when it is bound to protein. Choice B is incorrect as rapid distribution to receptor sites is not possible if the drug is bound to protein and cannot bind with receptors. Choice D is incorrect as metabolism does not increase when the drug is bound to protein; the liver first needs to separate the drug from the protein before metabolism can occur.