Final answer:
The medical situation when a drug should not be used is called a contraindication. Psychological dependence refers to craving for a drug, while tolerance is needing more of the drug for the same effect. Epinephrine is used for anaphylactic shocks, and drug antagonism can decrease drug effectiveness.
Step-by-step explanation:
The correct answer to the multiple-choice question
The medical situation when a particular drug should not be administered is referred to as D. contraindication. A contraindication means that a drug or treatment should not be used because it may be harmful to the patient. This may occur due to a current medical condition, potential drug allergy, or known adverse effects that outweigh the potential benefits of the drug.
Psychological dependence refers to drug craving, whereas tolerance occurs when a drug user requires more and more of a given drug to experience the same effects. The drug used to counteract the effects of anaphylactic shock is epinephrine. Antagonism in drugs can lead to harmful effects such as decreased effectiveness or increased toxicity, which is contrary to synergistic drug interactions that provide a benefit to the patient.
An allergic response can sometimes lead to a person's death due to an overwhelming immune reaction that affects vital systems in the body. An example of this is anaphylaxis, which can be potentially fatal if not treated promptly with medications like epinephrine. The term that refers to an antibody binding to an antigen other than the one that elicited its synthesis is cross-reactivity.