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NSG 318 EXAM 1 – GCU PHARMACOLOGY – 2026
## PRACTICE TEST BANK WITH ANSWERS &
RATIONALES
### HIGH-YIELD | FIRST-TIME PASS | GRAND
CANYON UNIVERSITY ALIGNED
## Table of Contents
| Domain | Topic | Question Numbers |
|--------|-------|------------------|
| 1 | Pharmacokinetics (ADME) | 1–20 |
| 2 | Pharmacodynamics (Receptors, Agonists, Antagonists) | 21–35 |
| 3 | Medication Safety & Error Prevention | 36–45 |
| 4 | Legal & Ethical Issues in Pharmacology | 46–55 |
| 5 | Adverse Drug Reactions & Interactions | 56–65 |
| 6 | Autonomic Nervous System Drugs (Cholinergic & Adrenergic) | 66–80 |
| 7 | Central Nervous System Drugs | 81–90 |
| 8 | Cardiovascular & Renal Drugs | 91–100 |
| 9 | Anti-inflammatory & Immune Drugs | 101–110 |
| 10 | Mixed Comprehensive Review (Exam-Style) | 111–120 |
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# DOMAIN 1: PHARMACOKINETICS (ADME) (Questions 1–20)
**1. A nurse administers a medication orally. Which phase of pharmacokinetics
involves the movement of the drug from the gastrointestinal tract into the
bloodstream?**
A. Distribution
B. Absorption
C. Metabolism
D. Excretion
**Correct Answer: B – Absorption**
*Rationale:* Absorption is the process by which a drug moves from its
administration site (e.g., GI tract) into the bloodstream. Distribution is transport
throughout the body. Metabolism (biotransformation) occurs primarily in the liver.
Excretion is elimination (primarily kidneys).
**2. Which route of administration has the fastest absorption rate and bypasses the
first-pass effect?**
A. Oral
B. Sublingual
C. Intravenous (IV)
D. Intramuscular (IM)
**Correct Answer: C – Intravenous (IV)**
*Rationale:* IV administration delivers the drug directly into the bloodstream,
achieving 100% bioavailability and bypassing the first-pass effect (hepatic
metabolism). Sublingual also bypasses first-pass but absorption is slower than IV.
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**3. A patient is prescribed a medication that is highly protein-bound (98%).
Which statement best explains the clinical significance of protein binding?**
A. The drug will be rapidly excreted by the kidneys
B. Only the unbound (free) fraction is pharmacologically active
C. The drug will have a very short half-life
D. The drug cannot cross the blood-brain barrier
**Correct Answer: B – Only the unbound fraction is active**
*Rationale:* Only unbound (free) drug can bind to receptors, produce effects, and
be metabolized/excreted. Highly protein-bound drugs have a low volume of
distribution and may be displaced by other protein-bound drugs (increasing free
drug and toxicity risk).
**4. A patient with liver disease is prescribed a medication that is extensively
metabolized by the liver. The nurse anticipates:**
A. Increased drug excretion
B. Decreased drug half-life
C. Increased drug accumulation and prolonged effect
D. No change in drug levels
**Correct Answer: C – Increased drug accumulation**
*Rationale:* Liver disease (cirrhosis, hepatitis) reduces hepatic metabolism,
leading to higher drug levels, prolonged half-life, and increased risk of toxicity.
Dose reduction may be required.
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**5. The nurse understands that the first-pass effect occurs when a drug is:**
A. Administered intravenously and rapidly distributed
B. Absorbed from the GI tract and metabolized by the liver before reaching
systemic circulation
C. Excreted unchanged in the urine
D. Bound to albumin in the bloodstream
**Correct Answer: B – Absorbed from GI tract and metabolized by the liver before
reaching systemic circulation**
*Rationale:* The first-pass effect refers to hepatic metabolism of oral drugs after
absorption, reducing the amount of active drug reaching systemic circulation. This
is why oral doses are often higher than IV doses.
**6. A nurse administers a medication that has a half-life of 4 hours.
Approximately how long will it take for the drug to reach steady state?**
A. 4 hours
B. 8 hours
C. 16 hours
D. 20–24 hours
**Correct Answer: D – 20–24 hours (approximately 5 half-lives)**
*Rationale:* Steady state is achieved after approximately 4–5 half-lives. For a 4-
hour half-life, steady state is reached in 16–20 hours (closest option: 20–24 hours).
**7. A patient is receiving a drug that is primarily excreted by the kidneys. The
patient develops acute kidney injury. The nurse anticipates:**
NSG 318 EXAM 1 – GCU PHARMACOLOGY – 2026
## PRACTICE TEST BANK WITH ANSWERS &
RATIONALES
### HIGH-YIELD | FIRST-TIME PASS | GRAND
CANYON UNIVERSITY ALIGNED
## Table of Contents
| Domain | Topic | Question Numbers |
|--------|-------|------------------|
| 1 | Pharmacokinetics (ADME) | 1–20 |
| 2 | Pharmacodynamics (Receptors, Agonists, Antagonists) | 21–35 |
| 3 | Medication Safety & Error Prevention | 36–45 |
| 4 | Legal & Ethical Issues in Pharmacology | 46–55 |
| 5 | Adverse Drug Reactions & Interactions | 56–65 |
| 6 | Autonomic Nervous System Drugs (Cholinergic & Adrenergic) | 66–80 |
| 7 | Central Nervous System Drugs | 81–90 |
| 8 | Cardiovascular & Renal Drugs | 91–100 |
| 9 | Anti-inflammatory & Immune Drugs | 101–110 |
| 10 | Mixed Comprehensive Review (Exam-Style) | 111–120 |
,2|Page
# DOMAIN 1: PHARMACOKINETICS (ADME) (Questions 1–20)
**1. A nurse administers a medication orally. Which phase of pharmacokinetics
involves the movement of the drug from the gastrointestinal tract into the
bloodstream?**
A. Distribution
B. Absorption
C. Metabolism
D. Excretion
**Correct Answer: B – Absorption**
*Rationale:* Absorption is the process by which a drug moves from its
administration site (e.g., GI tract) into the bloodstream. Distribution is transport
throughout the body. Metabolism (biotransformation) occurs primarily in the liver.
Excretion is elimination (primarily kidneys).
**2. Which route of administration has the fastest absorption rate and bypasses the
first-pass effect?**
A. Oral
B. Sublingual
C. Intravenous (IV)
D. Intramuscular (IM)
**Correct Answer: C – Intravenous (IV)**
*Rationale:* IV administration delivers the drug directly into the bloodstream,
achieving 100% bioavailability and bypassing the first-pass effect (hepatic
metabolism). Sublingual also bypasses first-pass but absorption is slower than IV.
,3|Page
**3. A patient is prescribed a medication that is highly protein-bound (98%).
Which statement best explains the clinical significance of protein binding?**
A. The drug will be rapidly excreted by the kidneys
B. Only the unbound (free) fraction is pharmacologically active
C. The drug will have a very short half-life
D. The drug cannot cross the blood-brain barrier
**Correct Answer: B – Only the unbound fraction is active**
*Rationale:* Only unbound (free) drug can bind to receptors, produce effects, and
be metabolized/excreted. Highly protein-bound drugs have a low volume of
distribution and may be displaced by other protein-bound drugs (increasing free
drug and toxicity risk).
**4. A patient with liver disease is prescribed a medication that is extensively
metabolized by the liver. The nurse anticipates:**
A. Increased drug excretion
B. Decreased drug half-life
C. Increased drug accumulation and prolonged effect
D. No change in drug levels
**Correct Answer: C – Increased drug accumulation**
*Rationale:* Liver disease (cirrhosis, hepatitis) reduces hepatic metabolism,
leading to higher drug levels, prolonged half-life, and increased risk of toxicity.
Dose reduction may be required.
, 4|Page
**5. The nurse understands that the first-pass effect occurs when a drug is:**
A. Administered intravenously and rapidly distributed
B. Absorbed from the GI tract and metabolized by the liver before reaching
systemic circulation
C. Excreted unchanged in the urine
D. Bound to albumin in the bloodstream
**Correct Answer: B – Absorbed from GI tract and metabolized by the liver before
reaching systemic circulation**
*Rationale:* The first-pass effect refers to hepatic metabolism of oral drugs after
absorption, reducing the amount of active drug reaching systemic circulation. This
is why oral doses are often higher than IV doses.
**6. A nurse administers a medication that has a half-life of 4 hours.
Approximately how long will it take for the drug to reach steady state?**
A. 4 hours
B. 8 hours
C. 16 hours
D. 20–24 hours
**Correct Answer: D – 20–24 hours (approximately 5 half-lives)**
*Rationale:* Steady state is achieved after approximately 4–5 half-lives. For a 4-
hour half-life, steady state is reached in 16–20 hours (closest option: 20–24 hours).
**7. A patient is receiving a drug that is primarily excreted by the kidneys. The
patient develops acute kidney injury. The nurse anticipates:**
