ULTIMATE NURS 5334 FINAL EXAM
BUNDLE | UTA Advanced Pharmacology
200 Actual Q&A + Rationales | Academic
Year 2026-2027
SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS
(Questions 1-25)
1. A patient with heart failure is prescribed digoxin. The nurse understands
that digoxin has a narrow therapeutic index. Which statement best describes
the clinical significance of a narrow therapeutic index?
A) The drug has a wide margin of safety
B) Small changes in dose can lead to toxicity
C) The drug requires no therapeutic drug monitoring
D) The drug has a high protein binding capacity
Answer: B
Rationale: A narrow therapeutic index means there is a small margin between the
therapeutic dose and toxic dose. Small changes in drug concentration can lead to
therapeutic failure or toxicity. Digoxin requires careful monitoring of serum levels
to maintain therapeutic range (0.8-2.0 ng/mL) and prevent toxicity.
2. Which pharmacokinetic process is most affected by hepatic impairment?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
Answer: C
Rationale: The liver is the primary site of drug metabolism (biotransformation).
Hepatic impairment significantly reduces the liver's ability to metabolize drugs,
,leading to increased drug concentrations and prolonged half-life. This is especially
important for drugs that undergo extensive first-pass metabolism.
3. A patient with chronic kidney disease has a GFR of 25 mL/min. Which
medication adjustment is most appropriate for a drug that is 80% renally
excreted?
A) No adjustment needed
B) Increase the dose by 50%
C) Decrease the dose or increase the dosing interval
D) Administer the drug via IV route only
Answer: C
Rationale: With significant renal impairment (GFR <30 mL/min), drugs that are
primarily renally excreted require dose reduction or extended dosing intervals to
prevent accumulation and toxicity. The dose should be adjusted based on
creatinine clearance and GFR.
4. The nurse is teaching a patient about enteric-coated medications. Which
statement indicates the patient understands the teaching?
A) "I can crush the tablet if I have difficulty swallowing"
B) "This coating prevents the drug from being destroyed by stomach acid"
C) "The coating helps the drug dissolve faster in the stomach"
D) "I should take this medication with orange juice"
Answer: B
Rationale: Enteric coating protects drugs from being destroyed by gastric acid and
prevents gastric irritation. The coating allows the drug to pass through the
stomach and dissolve in the more alkaline environment of the small intestine.
Enteric-coated tablets should never be crushed or chewed.
5. A patient is taking a medication with a half-life of 24 hours. Approximately
how long will it take for the drug to reach steady state?
A) 2-3 days
,B) 4-5 days
C) 7-10 days
D) 14-21 days
Answer: B
Rationale: Steady state is achieved after approximately 4-5 half-lives. With a half-
life of 24 hours, steady state would be reached in approximately 4-5 days (96-120
hours). This is when drug elimination equals drug administration and plasma
concentrations remain relatively constant.
6. Which patient factor would most significantly increase the volume of
distribution of a lipid-soluble drug?
A) Decreased renal function
B) Increased body fat
C) Decreased liver function
D) Increased muscle mass
Answer: B
Rationale: Lipid-soluble drugs distribute into adipose tissue. Increased body fat
provides a larger reservoir for drug storage, increasing the volume of distribution.
This can lead to prolonged drug action and accumulation over time.
7. A patient with an infection is prescribed gentamicin. The nurse monitors
peak and trough levels. Which trough level indicates appropriate dosing?
A) 0.5 mcg/mL
B) 2.5 mcg/mL
C) 5.0 mcg/mL
D) 10.0 mcg/mL
Answer: A
Rationale: For gentamicin, therapeutic trough levels should be <2 mcg/mL to
minimize nephrotoxicity and ototoxicity. A trough of 0.5 mcg/mL indicates
adequate clearance between doses. High trough levels suggest drug accumulation
and increased toxicity risk.
, 8. Which drug property most facilitates passage across the blood-brain
K. K. K. K. K. K. K. K.
barrier?
K.
A) High water solubility K. K.
B) High protein binding K. K.
C) High lipid solubility K. K.
D) High molecular weight K. K.
Answer: C K.
Rationale: Lipid-soluble drugs cross the blood-brain barrier more readily because
K. K. K. K. K. K. K. K. K.
they can diffuse through the lipid bilayer of cell membranes. The blood-brain
K. K. K. K. K. K. K. K. K. K. K. K.
barrier has tight junctions that restrict the passage of water-soluble, large, or
K. K. K. K. K. K. K. K. K. K. K. K.
highly protein-bound molecules.
K. K. K.
9. The cytochrome P450 enzyme system is responsible for drug metabolism.
K. K. K. K. K. K. K. K. K.
Which factor can induce CYP3A4 activity?
K. K. K. K. K. K.
A) Grapefruit juice K.
B) Ketoconazole
C) Rifampin
D) Cimetidine
Answer: C K.
Rationale: Rifampin is a potent inducer of CYP3A4, increasing the metabolism of
K. K. K. K. K. K. K. K. K. K. K.
drugs metabolized by this enzyme. This can reduce the therapeutic effect of drugs
K. K. K. K. K. K. K. K. K. K. K. K. K.
like oral contraceptives, warfarin, and many statins. Grapefruit juice,
K. K. K. K. K. K. K. K. K.
ketoconazole, and cimetidine are inhibitors. K. K. K. K.
10. A patient is prescribed a drug that is 95% protein-bound. Which condition
K. K. K. K. K. K. K. K. K. K. K.
would most likely increase the risk of drug toxicity?
K. K. K. K. K. K. K. K. K.
A) Obesity
B) Diabetes mellitus K.
C) Hypoalbuminemia
D) Hypertension
BUNDLE | UTA Advanced Pharmacology
200 Actual Q&A + Rationales | Academic
Year 2026-2027
SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS
(Questions 1-25)
1. A patient with heart failure is prescribed digoxin. The nurse understands
that digoxin has a narrow therapeutic index. Which statement best describes
the clinical significance of a narrow therapeutic index?
A) The drug has a wide margin of safety
B) Small changes in dose can lead to toxicity
C) The drug requires no therapeutic drug monitoring
D) The drug has a high protein binding capacity
Answer: B
Rationale: A narrow therapeutic index means there is a small margin between the
therapeutic dose and toxic dose. Small changes in drug concentration can lead to
therapeutic failure or toxicity. Digoxin requires careful monitoring of serum levels
to maintain therapeutic range (0.8-2.0 ng/mL) and prevent toxicity.
2. Which pharmacokinetic process is most affected by hepatic impairment?
A) Absorption
B) Distribution
C) Metabolism
D) Excretion
Answer: C
Rationale: The liver is the primary site of drug metabolism (biotransformation).
Hepatic impairment significantly reduces the liver's ability to metabolize drugs,
,leading to increased drug concentrations and prolonged half-life. This is especially
important for drugs that undergo extensive first-pass metabolism.
3. A patient with chronic kidney disease has a GFR of 25 mL/min. Which
medication adjustment is most appropriate for a drug that is 80% renally
excreted?
A) No adjustment needed
B) Increase the dose by 50%
C) Decrease the dose or increase the dosing interval
D) Administer the drug via IV route only
Answer: C
Rationale: With significant renal impairment (GFR <30 mL/min), drugs that are
primarily renally excreted require dose reduction or extended dosing intervals to
prevent accumulation and toxicity. The dose should be adjusted based on
creatinine clearance and GFR.
4. The nurse is teaching a patient about enteric-coated medications. Which
statement indicates the patient understands the teaching?
A) "I can crush the tablet if I have difficulty swallowing"
B) "This coating prevents the drug from being destroyed by stomach acid"
C) "The coating helps the drug dissolve faster in the stomach"
D) "I should take this medication with orange juice"
Answer: B
Rationale: Enteric coating protects drugs from being destroyed by gastric acid and
prevents gastric irritation. The coating allows the drug to pass through the
stomach and dissolve in the more alkaline environment of the small intestine.
Enteric-coated tablets should never be crushed or chewed.
5. A patient is taking a medication with a half-life of 24 hours. Approximately
how long will it take for the drug to reach steady state?
A) 2-3 days
,B) 4-5 days
C) 7-10 days
D) 14-21 days
Answer: B
Rationale: Steady state is achieved after approximately 4-5 half-lives. With a half-
life of 24 hours, steady state would be reached in approximately 4-5 days (96-120
hours). This is when drug elimination equals drug administration and plasma
concentrations remain relatively constant.
6. Which patient factor would most significantly increase the volume of
distribution of a lipid-soluble drug?
A) Decreased renal function
B) Increased body fat
C) Decreased liver function
D) Increased muscle mass
Answer: B
Rationale: Lipid-soluble drugs distribute into adipose tissue. Increased body fat
provides a larger reservoir for drug storage, increasing the volume of distribution.
This can lead to prolonged drug action and accumulation over time.
7. A patient with an infection is prescribed gentamicin. The nurse monitors
peak and trough levels. Which trough level indicates appropriate dosing?
A) 0.5 mcg/mL
B) 2.5 mcg/mL
C) 5.0 mcg/mL
D) 10.0 mcg/mL
Answer: A
Rationale: For gentamicin, therapeutic trough levels should be <2 mcg/mL to
minimize nephrotoxicity and ototoxicity. A trough of 0.5 mcg/mL indicates
adequate clearance between doses. High trough levels suggest drug accumulation
and increased toxicity risk.
, 8. Which drug property most facilitates passage across the blood-brain
K. K. K. K. K. K. K. K.
barrier?
K.
A) High water solubility K. K.
B) High protein binding K. K.
C) High lipid solubility K. K.
D) High molecular weight K. K.
Answer: C K.
Rationale: Lipid-soluble drugs cross the blood-brain barrier more readily because
K. K. K. K. K. K. K. K. K.
they can diffuse through the lipid bilayer of cell membranes. The blood-brain
K. K. K. K. K. K. K. K. K. K. K. K.
barrier has tight junctions that restrict the passage of water-soluble, large, or
K. K. K. K. K. K. K. K. K. K. K. K.
highly protein-bound molecules.
K. K. K.
9. The cytochrome P450 enzyme system is responsible for drug metabolism.
K. K. K. K. K. K. K. K. K.
Which factor can induce CYP3A4 activity?
K. K. K. K. K. K.
A) Grapefruit juice K.
B) Ketoconazole
C) Rifampin
D) Cimetidine
Answer: C K.
Rationale: Rifampin is a potent inducer of CYP3A4, increasing the metabolism of
K. K. K. K. K. K. K. K. K. K. K.
drugs metabolized by this enzyme. This can reduce the therapeutic effect of drugs
K. K. K. K. K. K. K. K. K. K. K. K. K.
like oral contraceptives, warfarin, and many statins. Grapefruit juice,
K. K. K. K. K. K. K. K. K.
ketoconazole, and cimetidine are inhibitors. K. K. K. K.
10. A patient is prescribed a drug that is 95% protein-bound. Which condition
K. K. K. K. K. K. K. K. K. K. K.
would most likely increase the risk of drug toxicity?
K. K. K. K. K. K. K. K. K.
A) Obesity
B) Diabetes mellitus K.
C) Hypoalbuminemia
D) Hypertension
