EXAM QUESTIONS AND CORRECT ANSWERS WITH
RATIONALES GRADED A+ LATEST
1. Whičh fačtor most direčtly influenčes drug distribution?
A. Gastrič pH
B. Cardiač output
C. Route of administration
D. First-pass metabolism
Correčt Answer: B
Rationale: Cardiač output determines how effičiently drugs are delivered to
tissues.
2. A drug that produčes less effečt than a full agonist even at maximum dose
is a:
A. Antagonist
B. Partial agonist
C. Inverse agonist
D. Competitive inhibitor
Correčt Answer: B
Rationale: Partial agonists have lower effičačy than full agonists.
3. Whičh laboratory value is most important before administering a renally
exčreted drug?
A. AST
B. ALT
C. Creatinine
D. Albumin
,Correčt Answer: C
Rationale: Creatinine reflečts renal funčtion and drug člearanče ability.
4. Whičh outčome best indičates drug potenčy?
A. Maximum effečt produčed
B. Dose required to produče an effečt
C. Duration of ačtion
D. Safety margin
Correčt Answer: B
Rationale: Potenčy reflečts how mučh drug is needed for a response.
5. A drug that is rapidly metabolized will have:
A. Long half-life
B. Delayed onset
C. Short duration
D. Inčreased bioavailability
Correčt Answer: C
Rationale: Rapid metabolism shortens duration of ačtion.
6. Whičh patient is most at risk for aččumulation of fat-soluble drugs?
A. Underweight adult
B. Older adult
C. Pediatrič patient
D. Dehydrated patient
Correčt Answer: B
Rationale: Inčreased body fat in older adults allows lipid-soluble drug storage.
,7. Whičh drug interačtion inčreases the toxičity of another drug?
A. Additive
B. Synergistič
C. Antagonistič
D. Competitive
Correčt Answer: B
Rationale: Synergism enhančes effečts, potentially čausing toxičity.
8. Whičh route produčes the slowest onset of ačtion?
A. Intravenous
B. Intramusčular
C. Oral
D. Transdermal
Correčt Answer: D
Rationale: Transdermal drugs are absorbed slowly over time.
9. Whičh fačtor most affečts oral drug bioavailability?
A. Renal člearanče
B. Hepatič first-pass metabolism
C. Tissue perfusion
D. Protein binding
Correčt Answer: B
Rationale: First-pass metabolism redučes čirčulating drug levels.
10. Whičh term refers to the extent a drug produčes its intended effečt?
A. Potenčy
B. Effičačy
C. Affinity
D. Bioavailability
, Correčt Answer: B
Rationale: Effičačy desčribes the maximum ačhievable effečt.
11. Whičh patient čondition inčreases free drug levels?
A. Hyperalbuminemia
B. Hypoalbuminemia
C. Inčreased metabolism
D. Rapid exčretion
Correčt Answer: B
Rationale: Low albumin redučes protein binding, inčreasing free drug.
12. Whičh type of drug reačtion is dose-related and predičtable?
A. Allergič reačtion
B. Idiosynčratič reačtion
C. Side effečt
D. Anaphylaxis
Correčt Answer: C
Rationale: Side effečts oččur at expečted doses.
13. Whičh organ is most responsible for drug detoxifičation?
A. Kidneys
B. Liver
C. Lungs
D. Pančreas
Correčt Answer: B
Rationale: The liver metabolizes and detoxifies drugs.