NUR 600 Exam 2 – Advanced Clinical
Pharmacology | Q&A (PDF) 2026/2027
Practice Exam | Instant Pdf Download
SECTION 1: PHARMACOKINETICS AND
PHARMACODYNAMICS (Questions 1–25)
1. A patient with hepatic cirrhosis is prescribed a
medication that undergoes extensive first-pass metabolism.
The nurse practitioner should anticipate which of the
following pharmacokinetic changes?
A. Decreased oral bioavailability
B. Increased oral bioavailability
C. Decreased volume of distribution
D. Increased renal clearance
Rationale: Hepatic cirrhosis impairs liver function, reducing first-
pass metabolism. Drugs that normally undergo extensive hepatic
extraction will have less degradation during their first pass
through the liver, resulting in increased systemic availability
when administered orally. This increases the risk of toxicity, and
dose reduction is often necessary.
,2. A drug with a half-life of 12 hours is administered
intravenously. Approximately how many hours will it take
to reach steady-state concentration?
A. 24 hours
B. 36 hours
C. 60 hours
D. 120 hours
Rationale: Steady state is achieved after approximately 4–5 half-
lives of drug administration. With a half-life of 12 hours, steady
state is reached at 5 × 12 = 60 hours. This principle applies to
drugs following first-order elimination kinetics.
3. A patient with severe hypoalbuminemia is prescribed a
highly protein-bound drug (99% protein bound). Which
pharmacokinetic consequence is most likely?
A. Decreased free drug concentration
B. Increased free drug concentration
C. Decreased elimination half-life
D. Reduced drug efficacy
Rationale: Low albumin levels reduce available protein-binding
sites, increasing the fraction of unbound (free and
pharmacologically active) drug in plasma. This can enhance both
therapeutic and toxic effects. For drugs with narrow therapeutic
indices, this displacement may precipitate toxicity.
,4. Which pharmacokinetic process is primarily responsible
for the irreversible removal of active drug from the body?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Rationale: Excretion—primarily via the kidneys (renal), but also
biliary and pulmonary routes—removes the active parent drug
from the body. While metabolism inactivates drugs, it is not the
final elimination step; metabolites must still be excreted.
5. A drug follows first-order elimination kinetics with a
half-life of 6 hours. A patient receives an IV bolus of 500
mg. Approximately how many milligrams remain after 18
hours?
A. 125 mg
B. 62.5 mg
C. 31.25 mg
D. 250 mg
Rationale: First-order kinetics means a constant fraction of the
drug is eliminated per unit time. After 18 hours (3 half-lives), the
remaining amount is 500 mg ÷ 2³ = 500 ÷ 8 = 62.5 mg. Option
, A (125 mg) corresponds to 2 half-lives, and Option C to 4 half-
lives.
6. A weak acid drug with a pKa of 4.4 is administered orally.
In the stomach (pH 1.4), the drug will be mostly:
A. Non-ionized and readily absorbed
B. Ionized and poorly absorbed
C. Trapped in the stomach
D. Bound to albumin
Rationale: Weak acids are predominantly non-ionized when the
environmental pH is below the pKa (pH < pKa). The non-ionized
form is lipophilic and readily crosses biological membranes,
favoring passive diffusion across the gastric mucosa. This is the
basis of the pH-partition hypothesis.
7. Phase II metabolism typically involves which type of
reaction?
A. Oxidation via CYP-450
B. Reduction reactions
C. Conjugation (e.g., glucuronidation)
D. Hydrolysis
Rationale: Phase II reactions are synthetic (conjugation) reactions
that attach polar molecules such as glucuronide, sulfate, or
Pharmacology | Q&A (PDF) 2026/2027
Practice Exam | Instant Pdf Download
SECTION 1: PHARMACOKINETICS AND
PHARMACODYNAMICS (Questions 1–25)
1. A patient with hepatic cirrhosis is prescribed a
medication that undergoes extensive first-pass metabolism.
The nurse practitioner should anticipate which of the
following pharmacokinetic changes?
A. Decreased oral bioavailability
B. Increased oral bioavailability
C. Decreased volume of distribution
D. Increased renal clearance
Rationale: Hepatic cirrhosis impairs liver function, reducing first-
pass metabolism. Drugs that normally undergo extensive hepatic
extraction will have less degradation during their first pass
through the liver, resulting in increased systemic availability
when administered orally. This increases the risk of toxicity, and
dose reduction is often necessary.
,2. A drug with a half-life of 12 hours is administered
intravenously. Approximately how many hours will it take
to reach steady-state concentration?
A. 24 hours
B. 36 hours
C. 60 hours
D. 120 hours
Rationale: Steady state is achieved after approximately 4–5 half-
lives of drug administration. With a half-life of 12 hours, steady
state is reached at 5 × 12 = 60 hours. This principle applies to
drugs following first-order elimination kinetics.
3. A patient with severe hypoalbuminemia is prescribed a
highly protein-bound drug (99% protein bound). Which
pharmacokinetic consequence is most likely?
A. Decreased free drug concentration
B. Increased free drug concentration
C. Decreased elimination half-life
D. Reduced drug efficacy
Rationale: Low albumin levels reduce available protein-binding
sites, increasing the fraction of unbound (free and
pharmacologically active) drug in plasma. This can enhance both
therapeutic and toxic effects. For drugs with narrow therapeutic
indices, this displacement may precipitate toxicity.
,4. Which pharmacokinetic process is primarily responsible
for the irreversible removal of active drug from the body?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Rationale: Excretion—primarily via the kidneys (renal), but also
biliary and pulmonary routes—removes the active parent drug
from the body. While metabolism inactivates drugs, it is not the
final elimination step; metabolites must still be excreted.
5. A drug follows first-order elimination kinetics with a
half-life of 6 hours. A patient receives an IV bolus of 500
mg. Approximately how many milligrams remain after 18
hours?
A. 125 mg
B. 62.5 mg
C. 31.25 mg
D. 250 mg
Rationale: First-order kinetics means a constant fraction of the
drug is eliminated per unit time. After 18 hours (3 half-lives), the
remaining amount is 500 mg ÷ 2³ = 500 ÷ 8 = 62.5 mg. Option
, A (125 mg) corresponds to 2 half-lives, and Option C to 4 half-
lives.
6. A weak acid drug with a pKa of 4.4 is administered orally.
In the stomach (pH 1.4), the drug will be mostly:
A. Non-ionized and readily absorbed
B. Ionized and poorly absorbed
C. Trapped in the stomach
D. Bound to albumin
Rationale: Weak acids are predominantly non-ionized when the
environmental pH is below the pKa (pH < pKa). The non-ionized
form is lipophilic and readily crosses biological membranes,
favoring passive diffusion across the gastric mucosa. This is the
basis of the pH-partition hypothesis.
7. Phase II metabolism typically involves which type of
reaction?
A. Oxidation via CYP-450
B. Reduction reactions
C. Conjugation (e.g., glucuronidation)
D. Hydrolysis
Rationale: Phase II reactions are synthetic (conjugation) reactions
that attach polar molecules such as glucuronide, sulfate, or
