Which information obtained by the nurse is subjective when a patient experiences adverse effects of a medication?.

Choice A rationale:
An allergic reaction refers to an immune response to a foreign substance. It does not describe the interaction between an antacid and ketoconazole.
Choice B rationale:
Displacement refers to one drug replacing another at the drug-binding site on proteins, altering the distribution of the displaced drug. It does not describe the interaction between an antacid and ketoconazole.
Choice C rationale:
Accumulation refers to the buildup of a drug in the body due to inadequate metabolism or excretion. It does not describe the interaction between an antacid and ketoconazole.
Choice D rationale:
A drug interaction occurs when the effect of one drug is altered by the administration of another drug. Antacids can slow the dissolution and absorption of ketoconazole, which is a type of drug interaction.

Choice A rationale:
While distribution can affect a person’s response to medication, it is not the aspect of genetic makeup most likely to alter this response.
Choice B rationale:
Absorption can affect how a drug is taken up by the body, but it is not the aspect of genetic makeup most likely to alter a person’s response to medication.
Choice C rationale:
Excretion, or how the body eliminates a drug, can affect drug response, but it is not the aspect of genetic makeup most likely to alter this response.
Choice D rationale:
Metabolism, or how the body processes a drug, is the aspect of genetic makeup most likely to alter a person’s response to medication. Genetic differences can lead to variations in drug-metabolizing enzymes, affecting how quickly or slowly drugs are metabolized.