NURS 5334 ADVANCED PHARM FINAL EXAM |
LATEST 2026/2027 UPDATES | QUESTIONS AND
ANSWERS LATEST SOLUTIONS
Section 1: Pharmacokinetics & Pharmacodynamics
1. Which phase of pharmacokinetics involves the
movement of a drug from its site of administration into
the bloodstream?
A. Absorption ✅
B. Distribution
C. Metabolism
D. Excretion
Rationale: Absorption is the process by which a drug enters the
bloodstream from its site of administration.
2. Which factor most significantly affects the rate of drug
absorption from the gastrointestinal tract?
A. Gastric emptying time ✅
B. Plasma protein binding
C. Hepatic blood flow
D. Renal clearance
Rationale: Slowed gastric emptying delays drug absorption; rapid
emptying accelerates it.
3. What is the primary organ responsible for drug
metabolism?
A. Kidney
B. Liver ✅
C. Lung
D. Spleen
Rationale: The liver is the primary site of drug metabolism,
primarily via cytochrome P450 enzymes.
4. Which cytochrome P450 enzyme is involved in the
metabolism of the largest number of drugs?
A. CYP3A4 ✅
,B. CYP2D6
C. CYP2C9
D. CYP1A2
Rationale: CYP3A4 metabolizes approximately 50% of all drugs.
5. What does the term "first-pass effect" refer to?
A. Metabolism of a drug in the liver before it reaches systemic
circulation ✅
B. Excretion of a drug in the bile
C. Binding of a drug to plasma proteins
D. Movement of a drug across the blood-brain barrier
Rationale: Orally administered drugs pass through the portal
circulation and are metabolized by the liver before reaching
systemic circulation.
6. Which route of administration avoids the first-pass
effect?
A. Oral
B. Intravenous ✅
C. Rectal
D. Enteral
Rationale: IV administration bypasses the GI tract and liver,
delivering drug directly to systemic circulation.
7. What is the volume of distribution (Vd)?
A. The theoretical volume into which a drug distributes in the
body ✅
B. The volume of blood cleared of drug per unit time
C. The volume of urine produced per hour
D. The volume of drug absorbed from the GI tract
Rationale: Vd relates the amount of drug in the body to its plasma
concentration.
8. A drug with a high volume of distribution is likely to:
A. Be extensively distributed into tissues ✅
B. Remain primarily in the plasma
C. Be rapidly excreted
D. Have a short half-life
Rationale: High Vd indicates extensive tissue distribution.
,9. What is drug clearance?
A. The volume of plasma cleared of drug per unit time ✅
B. The amount of drug absorbed
C. The volume of distribution
D. The half-life
Rationale: Clearance quantifies the efficiency of drug removal
from the body.
10. What is the half-life (t½) of a drug?
A. The time required for the plasma concentration to decrease by
50% ✅
B. The time to reach peak plasma concentration
C. The time to achieve steady state
D. The duration of drug action
Rationale: Half-life determines the time to steady state and dosing
interval.
11. How many half-lives are required to reach steady
state?
A. 2–3
B. 4–5 ✅
C. 6–7
D. 8–10
Rationale: Steady state is typically reached after 4–5 half-lives.
12. What is bioavailability?
A. The fraction of an administered dose that reaches systemic
circulation unchanged ✅
B. The rate of drug absorption
C. The extent of protein binding
D. The volume of distribution
Rationale: IV administration has 100% bioavailability.
13. Which drug formulation has the highest
bioavailability?
A. Oral tablet
B. Oral capsule
C. Intravenous solution ✅
, D. Transdermal patch
Rationale: IV administration provides 100% bioavailability.
14. What is the therapeutic index?
A. The ratio of toxic dose to therapeutic dose ✅
B. The ratio of effective dose to lethal dose
C. The ratio of plasma concentration to dose
D. The ratio of clearance to volume of distribution
Rationale: A narrow therapeutic index requires careful monitoring.
15. A drug with a narrow therapeutic index requires:
A. Routine therapeutic drug monitoring ✅
B. No monitoring
C. High doses
D. Rapid titration
Rationale: Narrow TI drugs (e.g., digoxin, warfarin, phenytoin)
need monitoring.
16. What is a loading dose used for?
A. To rapidly achieve therapeutic plasma concentration ✅
B. To maintain steady state
C. To reduce side effects
D. To prolong half-life
Rationale: Loading doses rapidly achieve therapeutic levels.
17. What is a maintenance dose used for?
A. To maintain therapeutic plasma concentration ✅
B. To rapidly achieve therapeutic levels
C. To reduce toxicity
D. To increase bioavailability
Rationale: Maintenance doses replace eliminated drug.
18. What is the mechanism of action of a competitive
antagonist?
A. Binds to the receptor and prevents agonist binding ✅
B. Binds to the receptor and activates it
C. Binds to the agonist
D. Binds to plasma proteins
LATEST 2026/2027 UPDATES | QUESTIONS AND
ANSWERS LATEST SOLUTIONS
Section 1: Pharmacokinetics & Pharmacodynamics
1. Which phase of pharmacokinetics involves the
movement of a drug from its site of administration into
the bloodstream?
A. Absorption ✅
B. Distribution
C. Metabolism
D. Excretion
Rationale: Absorption is the process by which a drug enters the
bloodstream from its site of administration.
2. Which factor most significantly affects the rate of drug
absorption from the gastrointestinal tract?
A. Gastric emptying time ✅
B. Plasma protein binding
C. Hepatic blood flow
D. Renal clearance
Rationale: Slowed gastric emptying delays drug absorption; rapid
emptying accelerates it.
3. What is the primary organ responsible for drug
metabolism?
A. Kidney
B. Liver ✅
C. Lung
D. Spleen
Rationale: The liver is the primary site of drug metabolism,
primarily via cytochrome P450 enzymes.
4. Which cytochrome P450 enzyme is involved in the
metabolism of the largest number of drugs?
A. CYP3A4 ✅
,B. CYP2D6
C. CYP2C9
D. CYP1A2
Rationale: CYP3A4 metabolizes approximately 50% of all drugs.
5. What does the term "first-pass effect" refer to?
A. Metabolism of a drug in the liver before it reaches systemic
circulation ✅
B. Excretion of a drug in the bile
C. Binding of a drug to plasma proteins
D. Movement of a drug across the blood-brain barrier
Rationale: Orally administered drugs pass through the portal
circulation and are metabolized by the liver before reaching
systemic circulation.
6. Which route of administration avoids the first-pass
effect?
A. Oral
B. Intravenous ✅
C. Rectal
D. Enteral
Rationale: IV administration bypasses the GI tract and liver,
delivering drug directly to systemic circulation.
7. What is the volume of distribution (Vd)?
A. The theoretical volume into which a drug distributes in the
body ✅
B. The volume of blood cleared of drug per unit time
C. The volume of urine produced per hour
D. The volume of drug absorbed from the GI tract
Rationale: Vd relates the amount of drug in the body to its plasma
concentration.
8. A drug with a high volume of distribution is likely to:
A. Be extensively distributed into tissues ✅
B. Remain primarily in the plasma
C. Be rapidly excreted
D. Have a short half-life
Rationale: High Vd indicates extensive tissue distribution.
,9. What is drug clearance?
A. The volume of plasma cleared of drug per unit time ✅
B. The amount of drug absorbed
C. The volume of distribution
D. The half-life
Rationale: Clearance quantifies the efficiency of drug removal
from the body.
10. What is the half-life (t½) of a drug?
A. The time required for the plasma concentration to decrease by
50% ✅
B. The time to reach peak plasma concentration
C. The time to achieve steady state
D. The duration of drug action
Rationale: Half-life determines the time to steady state and dosing
interval.
11. How many half-lives are required to reach steady
state?
A. 2–3
B. 4–5 ✅
C. 6–7
D. 8–10
Rationale: Steady state is typically reached after 4–5 half-lives.
12. What is bioavailability?
A. The fraction of an administered dose that reaches systemic
circulation unchanged ✅
B. The rate of drug absorption
C. The extent of protein binding
D. The volume of distribution
Rationale: IV administration has 100% bioavailability.
13. Which drug formulation has the highest
bioavailability?
A. Oral tablet
B. Oral capsule
C. Intravenous solution ✅
, D. Transdermal patch
Rationale: IV administration provides 100% bioavailability.
14. What is the therapeutic index?
A. The ratio of toxic dose to therapeutic dose ✅
B. The ratio of effective dose to lethal dose
C. The ratio of plasma concentration to dose
D. The ratio of clearance to volume of distribution
Rationale: A narrow therapeutic index requires careful monitoring.
15. A drug with a narrow therapeutic index requires:
A. Routine therapeutic drug monitoring ✅
B. No monitoring
C. High doses
D. Rapid titration
Rationale: Narrow TI drugs (e.g., digoxin, warfarin, phenytoin)
need monitoring.
16. What is a loading dose used for?
A. To rapidly achieve therapeutic plasma concentration ✅
B. To maintain steady state
C. To reduce side effects
D. To prolong half-life
Rationale: Loading doses rapidly achieve therapeutic levels.
17. What is a maintenance dose used for?
A. To maintain therapeutic plasma concentration ✅
B. To rapidly achieve therapeutic levels
C. To reduce toxicity
D. To increase bioavailability
Rationale: Maintenance doses replace eliminated drug.
18. What is the mechanism of action of a competitive
antagonist?
A. Binds to the receptor and prevents agonist binding ✅
B. Binds to the receptor and activates it
C. Binds to the agonist
D. Binds to plasma proteins
