ANSWERS (VERIFIED ANSWERS) Q&A
2026|INSTANT DOWNLOAD PDF
1.
Which best describes pharmacokinetics?
A. Drug effects on the body
B. Body effects on drugs
C. Drug storage methods
D. Drug manufacturing process
Rationale: Pharmacokinetics involves absorption, distribution,
metabolism, and excretion.
Correct answer: B
2.
Which organ is primarily responsible for drug metabolism?
A. Heart
B. Liver
C. Lungs
D. Kidney
Rationale: The liver is the main site of drug biotransformation.
Correct answer: B
3.
,What is the route with the fastest drug absorption?
A. Oral
B. Subcutaneous
C. IV
D. Rectal
Rationale: IV administration delivers directly into circulation.
Correct answer: C
4.
Which factor affects drug distribution?
A. Blood flow
B. Hair color
C. Height
D. Age only
Rationale: Perfusion and protein binding affect distribution.
Correct answer: A
5.
First-pass metabolism occurs in the:
A. Kidney
B. Liver
C. Pancreas
D. Brain
Rationale: Oral drugs pass through the liver first.
Correct answer: B
,6.
Which route bypasses first-pass metabolism?
A. Oral
B. Sublingual
C. Rectal only
D. Both B and C
Rationale: Sublingual and rectal partially bypass liver
metabolism.
Correct answer: D
7.
Therapeutic index refers to:
A. Drug cost effectiveness
B. Safety margin between effective and toxic dose
C. Drug absorption rate
D. Drug half-life
Rationale: Narrow index means higher toxicity risk.
Correct answer: B
8.
Half-life of a drug is:
A. Time to peak effect
B. Time for 50% elimination
, C. Time for absorption
D. Duration of side effects
Rationale: Half-life measures elimination rate.
Correct answer: B
9.
Steady state is achieved after:
A. One dose
B. 1–2 half-lives
C. 4–5 half-lives
D. 10 half-lives
Rationale: Steady state occurs after repeated dosing.
Correct answer: C
10.
Which is a beta blocker?
A. Albuterol
B. Metoprolol
C. Atropine
D. Dopamine
Rationale: Metoprolol blocks beta-adrenergic receptors.
Correct answer: B
11.