Pharmacology Chapter 2: NCLEX
Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
Which term describes how a drug is absorbed, distributed, metabolized, and excreted?
A. Pharmacodynamics
B. Drug interaction
✔✔C. Pharmacokinetics
D. Adverse effect
What does pharmacodynamics study?
A. Drug absorption only
B. Drug excretion only
✔✔C. How drugs affect the body
D. How the body metabolizes drugs
Which route of drug administration has the fastest onset of action?
A. Oral
✔✔B. Intravenous
1
,C. Subcutaneous
D. Intramuscular
Which organ is primarily responsible for drug metabolism?
A. Kidneys
B. Lungs
✔✔C. Liver
D. Stomach
Which process describes the movement of a drug from the bloodstream to body tissues?
A. Absorption
B. Metabolism
✔✔C. Distribution
D. Excretion
What does the half-life of a drug indicate?
A. The duration of pain relief
✔✔B. The time it takes for half of the drug to be eliminated
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, C. The time to reach peak effect
D. The onset of action
Which organ is primarily responsible for drug excretion?
A. Liver
✔✔B. Kidneys
C. Lungs
D. Skin
What is the first-pass effect?
A. The time it takes for a drug to peak in blood
✔✔B. Drug metabolism by the liver before reaching systemic circulation
C. Drug excretion via urine
D. Drug absorption in the stomach
Which factor can alter drug absorption in elderly patients?
A. Increased liver enzymes
✔✔B. Decreased gastric motility and acid production
3
Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
Which term describes how a drug is absorbed, distributed, metabolized, and excreted?
A. Pharmacodynamics
B. Drug interaction
✔✔C. Pharmacokinetics
D. Adverse effect
What does pharmacodynamics study?
A. Drug absorption only
B. Drug excretion only
✔✔C. How drugs affect the body
D. How the body metabolizes drugs
Which route of drug administration has the fastest onset of action?
A. Oral
✔✔B. Intravenous
1
,C. Subcutaneous
D. Intramuscular
Which organ is primarily responsible for drug metabolism?
A. Kidneys
B. Lungs
✔✔C. Liver
D. Stomach
Which process describes the movement of a drug from the bloodstream to body tissues?
A. Absorption
B. Metabolism
✔✔C. Distribution
D. Excretion
What does the half-life of a drug indicate?
A. The duration of pain relief
✔✔B. The time it takes for half of the drug to be eliminated
2
, C. The time to reach peak effect
D. The onset of action
Which organ is primarily responsible for drug excretion?
A. Liver
✔✔B. Kidneys
C. Lungs
D. Skin
What is the first-pass effect?
A. The time it takes for a drug to peak in blood
✔✔B. Drug metabolism by the liver before reaching systemic circulation
C. Drug excretion via urine
D. Drug absorption in the stomach
Which factor can alter drug absorption in elderly patients?
A. Increased liver enzymes
✔✔B. Decreased gastric motility and acid production
3
