CLINICAL DRUG THERAPY CERTIFICATION
EVALUATION 2026 PRACTICE QUESTIONS
AND ANSWERS FULL SOLUTION VIEW
●● Agonist.
Answer: drug that produces effects similar to those produced by
naturally occurring hormones, neurotransmitters, and other substances
●● Antagonist.
Answer: Drug that inhibits cell function by occupying receptor sites
●● Antidote.
Answer: substance that relieves, prevents, or counteracts the effect of a
poison
●● Bioavailability.
Answer: portion of a drug dose that reaches the systemic circulation and
is available to act on body cells
●● Biotransformation.
Answer: when drugs are altered from their original form into a new form
by the body; also referred to as metabolism
, ●● Distribution.
Answer: Transport of drug molecules within the body; after a drug is
injected or absorbed into the bloodstream it is carried by the blood and
tissue fluids to its sites of action, metabolism, and excretion
●● Enterohepatic Recirculation.
Answer: drugs or metabolites that are excreted in bile, reabsorbed from
the small intestine, returned to the liver, metabolized, and eventually
excreted in urine
●● Enzyme induction.
Answer: production of larger amounts of drug-metabolizing enzymes by
liver cells; process accelerates drug metabolism because larger amounts
of the enzymes (and more binding sites) allow larger amounts of a drug
to be metabolized during a given time
●● Enzyme inhibition.
Answer: process in which a molecule binds to enzymes and inhibits their
activity
●● Excretion.
Answer: Elimination of a drug from the body; effective excretion
requires adequate functioning of the circulatory system and of the organs
of excretion (kidneys, bowel,lungs, and skin)
EVALUATION 2026 PRACTICE QUESTIONS
AND ANSWERS FULL SOLUTION VIEW
●● Agonist.
Answer: drug that produces effects similar to those produced by
naturally occurring hormones, neurotransmitters, and other substances
●● Antagonist.
Answer: Drug that inhibits cell function by occupying receptor sites
●● Antidote.
Answer: substance that relieves, prevents, or counteracts the effect of a
poison
●● Bioavailability.
Answer: portion of a drug dose that reaches the systemic circulation and
is available to act on body cells
●● Biotransformation.
Answer: when drugs are altered from their original form into a new form
by the body; also referred to as metabolism
, ●● Distribution.
Answer: Transport of drug molecules within the body; after a drug is
injected or absorbed into the bloodstream it is carried by the blood and
tissue fluids to its sites of action, metabolism, and excretion
●● Enterohepatic Recirculation.
Answer: drugs or metabolites that are excreted in bile, reabsorbed from
the small intestine, returned to the liver, metabolized, and eventually
excreted in urine
●● Enzyme induction.
Answer: production of larger amounts of drug-metabolizing enzymes by
liver cells; process accelerates drug metabolism because larger amounts
of the enzymes (and more binding sites) allow larger amounts of a drug
to be metabolized during a given time
●● Enzyme inhibition.
Answer: process in which a molecule binds to enzymes and inhibits their
activity
●● Excretion.
Answer: Elimination of a drug from the body; effective excretion
requires adequate functioning of the circulatory system and of the organs
of excretion (kidneys, bowel,lungs, and skin)
