FOCUS ON NURSING PHARMACOLOGY – CHAPTER
2: PHARMACODYNAMICS & PHARMACOKINETICS
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ 50 Questions and Answers
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1. What does pharmacodynamics study?
A. How the drug exits the body
B. Interactions between the body and drugs
C. Nutritional content of drugs
D. Drug pricing strategies
Answer: B
EXPLANATION: Pharmacodynamics is the study of the interactions between living organisms
and drugs, including the drug’s effects on the body.
2. TRUE or FALSE: Drugs can only replace missing chemicals in the body.
Answer: FALSE
EXPLANATION: Drugs can replace chemicals, stimulate or depress activity, and interfere with
foreign cell functioning.
3. Which of the following is NOT a drug action?
A. Stimulating cellular activities
B. Interfering with foreign cells
C. Slowing cellular activities
D. Making food digest faster
Answer: D
EXPLANATION: Digestive aid is not a primary drug action. Drugs act on chemical or cellular
processes, not food breakdown directly.
, 4. What analogy best describes receptor cells?
A. Battery and wire
B. Plug and outlet
C. Lock and key
D. Funnel and tube
Answer: C
EXPLANATION: Receptors work via a "lock and key" model — drugs bind to specific sites to
produce an effect.
5. TRUE or FALSE: A better receptor fit causes a more pronounced drug effect.
Answer: TRUE
EXPLANATION: The better the drug binds to the receptor, the stronger and more specific the
response.
6. What term refers to how the body acts on the drug?
A. Pharmacodynamics
B. Pharmacokinetics
C. Pharmaceutics
D. Pharmacy
Answer: B
EXPLANATION: Pharmacokinetics studies absorption, distribution, metabolism, and excretion
— how the body handles a drug.
7. Which of the following is NOT part of pharmacokinetics?
A. Onset of drug action
B. Drug half-life
C. Peak timing
D. Cost of therapy
Answer: D
EXPLANATION: Cost is unrelated to the pharmacokinetic processes of a drug.
8. What does critical concentration mean?
2: PHARMACODYNAMICS & PHARMACOKINETICS
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ 50 Questions and Answers
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1. What does pharmacodynamics study?
A. How the drug exits the body
B. Interactions between the body and drugs
C. Nutritional content of drugs
D. Drug pricing strategies
Answer: B
EXPLANATION: Pharmacodynamics is the study of the interactions between living organisms
and drugs, including the drug’s effects on the body.
2. TRUE or FALSE: Drugs can only replace missing chemicals in the body.
Answer: FALSE
EXPLANATION: Drugs can replace chemicals, stimulate or depress activity, and interfere with
foreign cell functioning.
3. Which of the following is NOT a drug action?
A. Stimulating cellular activities
B. Interfering with foreign cells
C. Slowing cellular activities
D. Making food digest faster
Answer: D
EXPLANATION: Digestive aid is not a primary drug action. Drugs act on chemical or cellular
processes, not food breakdown directly.
, 4. What analogy best describes receptor cells?
A. Battery and wire
B. Plug and outlet
C. Lock and key
D. Funnel and tube
Answer: C
EXPLANATION: Receptors work via a "lock and key" model — drugs bind to specific sites to
produce an effect.
5. TRUE or FALSE: A better receptor fit causes a more pronounced drug effect.
Answer: TRUE
EXPLANATION: The better the drug binds to the receptor, the stronger and more specific the
response.
6. What term refers to how the body acts on the drug?
A. Pharmacodynamics
B. Pharmacokinetics
C. Pharmaceutics
D. Pharmacy
Answer: B
EXPLANATION: Pharmacokinetics studies absorption, distribution, metabolism, and excretion
— how the body handles a drug.
7. Which of the following is NOT part of pharmacokinetics?
A. Onset of drug action
B. Drug half-life
C. Peak timing
D. Cost of therapy
Answer: D
EXPLANATION: Cost is unrelated to the pharmacokinetic processes of a drug.
8. What does critical concentration mean?
