1. Which of the following is a primary characteristic of
pharmacokinetics?
- A. The study of drug interactions
- B. The study of drug absorption, distribution, metabolism, and
excretion
- C. The study of drug effects on the body
- D. The study of drug toxicity
, - ANS: B. The study of drug absorption, distribution,
metabolism, and excretion
- Rationale: Pharmacokinetics involves the study of how the
body absorbs, distributes, metabolizes, and excretes a drug.
2. What is the main purpose of beta-blockers in the treatment of
hypertension?
- A. To increase heart rate
- B. To decrease cardiac output and reduce blood pressure
- C. To dilate blood vessels
- D. To increase blood volume
- ANS: B. To decrease cardiac output and reduce blood
pressure
- Rationale: Beta-blockers decrease cardiac output by
reducing heart rate and contractility, leading to lower blood
pressure.
3. Which of the following best describes the concept of
'pharmacodynamics'?
- A. The study of drug absorption, distribution, metabolism, and
excretion
- B. The study of the effects of drugs on the body
- C. The study of drug interactions
, - D. The study of drug toxicity
- ANS: B. The study of the effects of drugs on the body
- Rationale: Pharmacodynamics involves the study of how
drugs affect the body, including their mechanisms of action and
therapeutic effects.
Fill-in-the-Blank Questions
4. The process by which a drug is metabolized and eliminated
from the body is known as __________.
- ANS: Excretion
- Rationale: Excretion is the process by which the body
eliminates drugs and their metabolites, primarily through the
kidneys.
5. __________ is a class of medications commonly used to treat
anxiety disorders by enhancing the effect of the neurotransmitter
GABA.
- ANS: Benzodiazepines
- Rationale: Benzodiazepines enhance the effect of GABA,
leading to increased inhibitory effects and reduced anxiety.
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