Which of the following statements is TRUE?

A) Absorption means that most medications whether unchanged or metabolized are excreted in the urine.
B) Affinity is the process of chemically changing a medication through metabolism within the body.
C) Therapeutic index is a ratio comparing a medication's lethal dose with an effective dose of the same medication.
D) Half-life is the degree or rate at which a drug or other substance becomes available at the site of physiological activity after administration.


Answer: C

Health Professions

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