NURSING PHARMACOLOGY TEST BANK HIGH-YIELD NCLEX
STYLE PRACTICE
QUESTIONS WITH ANSWERS AND EXPLANATIONS VERIFIED
Unit 1 (Kinetics & Dynamics)
Topic: Absorption, Distribution, Metabolism, Excretion (ADME) & Pharmacodynamics
1. What is the primary site for drug metabolism in the body?
A. Kidneys
B. Lungs
C. Liver
D. Intestines
Answer: C. Liver
Rationale: The liver is the main organ for drug metabolism, where enzymes such as CYP450
help transform drugs into less active metabolites for excretion.
,2. Which pharmacokinetic phase involves drug movement from the site of administration
into the bloodstream?
A. Metabolism
B. Absorption
C. Excretion
D. Distribution
Answer: B. Absorption
Rationale: Absorption is the first step in pharmacokinetics, where the drug enters circulation
from the administration site.
3. What factor may decrease absorption of oral medications in older adults?
A. Increased gastric acid
B. Faster gastric emptying
C. Decreased blood flow to GI tract
D. Increased subcutaneous fat
Answer: C. Decreased blood flow to GI tract
Rationale: Age-related changes such as reduced GI blood flow can slow drug absorption in
elderly patients.
4. Which of the following is an advantage of transdermal medication administration?
1|Page
,A. Immediate peak effect
B. Avoidance of the first-pass effect
C. Reduced skin irritation
D. Rapid onset of action
Answer: B. Avoidance of the first-pass effect
Rationale: Transdermal drugs bypass the liver initially, improving bioavailability and reducing
metabolism losses.
5. What effect does albumin level have on drug distribution?
A. No effect
B. Low albumin increases free drug availability
C. High albumin decreases free drug availability
D. Both B and C
Answer: D. Both B and C
Rationale: Albumin binds drugs in plasma. Low levels increase free (active) drug, while high
levels reduce it.
6. What is the "first-pass effect"?
A. Drug bypasses liver metabolism
B. Drug is inactivated before systemic circulation
C. Drug binds immediately to receptors
D. Drug is excreted unchanged
Answer: B. Drug is inactivated before systemic circulation
Rationale: Oral drugs pass through the liver first, where a significant portion may be
metabolized and inactivated.
2|Page
, 7. Which route offers 100% bioavailability?
A. Oral
B. Intramuscular
C. Intravenous
D. Subcutaneous
Answer: C. Intravenous
Rationale: IV administration delivers the drug directly into the bloodstream, ensuring complete
bioavailability.
8. A drug has a long half-life. What does this indicate?
A. Rapid excretion
B. Frequent dosing
C. Slow elimination
D. Minimal metabolism
Answer: C. Slow elimination
Rationale: Half-life reflects the time taken for plasma concentration to halve; longer half-life
means slower excretion.
9. What is pharmacodynamics primarily concerned with?
A. Drug absorption
B. Drug action on the body
C. Drug excretion
D. Drug metabolism
Answer: B. Drug action on the body
Rationale: Pharmacodynamics explores how a drug affects target cells and tissues, including
receptor interactions.
3|Page
STYLE PRACTICE
QUESTIONS WITH ANSWERS AND EXPLANATIONS VERIFIED
Unit 1 (Kinetics & Dynamics)
Topic: Absorption, Distribution, Metabolism, Excretion (ADME) & Pharmacodynamics
1. What is the primary site for drug metabolism in the body?
A. Kidneys
B. Lungs
C. Liver
D. Intestines
Answer: C. Liver
Rationale: The liver is the main organ for drug metabolism, where enzymes such as CYP450
help transform drugs into less active metabolites for excretion.
,2. Which pharmacokinetic phase involves drug movement from the site of administration
into the bloodstream?
A. Metabolism
B. Absorption
C. Excretion
D. Distribution
Answer: B. Absorption
Rationale: Absorption is the first step in pharmacokinetics, where the drug enters circulation
from the administration site.
3. What factor may decrease absorption of oral medications in older adults?
A. Increased gastric acid
B. Faster gastric emptying
C. Decreased blood flow to GI tract
D. Increased subcutaneous fat
Answer: C. Decreased blood flow to GI tract
Rationale: Age-related changes such as reduced GI blood flow can slow drug absorption in
elderly patients.
4. Which of the following is an advantage of transdermal medication administration?
1|Page
,A. Immediate peak effect
B. Avoidance of the first-pass effect
C. Reduced skin irritation
D. Rapid onset of action
Answer: B. Avoidance of the first-pass effect
Rationale: Transdermal drugs bypass the liver initially, improving bioavailability and reducing
metabolism losses.
5. What effect does albumin level have on drug distribution?
A. No effect
B. Low albumin increases free drug availability
C. High albumin decreases free drug availability
D. Both B and C
Answer: D. Both B and C
Rationale: Albumin binds drugs in plasma. Low levels increase free (active) drug, while high
levels reduce it.
6. What is the "first-pass effect"?
A. Drug bypasses liver metabolism
B. Drug is inactivated before systemic circulation
C. Drug binds immediately to receptors
D. Drug is excreted unchanged
Answer: B. Drug is inactivated before systemic circulation
Rationale: Oral drugs pass through the liver first, where a significant portion may be
metabolized and inactivated.
2|Page
, 7. Which route offers 100% bioavailability?
A. Oral
B. Intramuscular
C. Intravenous
D. Subcutaneous
Answer: C. Intravenous
Rationale: IV administration delivers the drug directly into the bloodstream, ensuring complete
bioavailability.
8. A drug has a long half-life. What does this indicate?
A. Rapid excretion
B. Frequent dosing
C. Slow elimination
D. Minimal metabolism
Answer: C. Slow elimination
Rationale: Half-life reflects the time taken for plasma concentration to halve; longer half-life
means slower excretion.
9. What is pharmacodynamics primarily concerned with?
A. Drug absorption
B. Drug action on the body
C. Drug excretion
D. Drug metabolism
Answer: B. Drug action on the body
Rationale: Pharmacodynamics explores how a drug affects target cells and tissues, including
receptor interactions.
3|Page
