NURS 5334 Quiz 1 Practice Assessment | 2026/2027 Edition | Page 1
, NURS 5334 QUIZ 1
Advanced Pharmacology for Nurse Practitioners
University of Texas at Arlington (UTA)
100-Question Original Practice Assessment
2026/2027 Edition
Original study assessment.
Principles of Pharmacology
1. A nurse practitioner compares pharmacokinetics with pharmacodynamics. Which statement is accurate?
A) Pharmacodynamics describes renal clearance only
B) Pharmacokinetics describes receptor activation only
C) Pharmacodynamics describes drug elimination only
D) Pharmacokinetics describes what the body does to a drug
Correct Answer: D) Pharmacokinetics describes what the body does to a drug
Rationale: Pharmacokinetics encompasses absorption, distribution, metabolism, and excretion.
Pharmacodynamics focuses on what the drug does to the body, including receptor effects and dose-response
relationships. Distinguishing these concepts helps explain why the same dose can produce different
concentrations and effects among patients.
2. Which parameter is best defined as the fraction of an administered dose that reaches systemic circulation
unchanged?
A) Bioavailability
B) Volume of distribution
C) Half-life
D) Clearance
Correct Answer: A) Bioavailability
Rationale: Bioavailability is the fraction of a dose that reaches systemic circulation in unchanged form.
Intravenous administration has bioavailability of 100% because it bypasses absorption and first-pass metabolism.
Oral bioavailability may be reduced by incomplete absorption and hepatic or intestinal first-pass metabolism.
3. A drug concentration falls from 40 mg/L to 20 mg/L over 6 hours. What is the drug's approximate half-life?
A) 3 hours
B) 12 hours
C) 20 hours
D) 6 hours
Correct Answer: D) 6 hours
Rationale: Half-life is the time required for a drug concentration or amount in the body to decrease by 50%. A fall
from 40 mg/L to 20 mg/L represents one half-life. Therefore, the observed half-life is approximately 6 hours.
4. A medication has a narrow therapeutic index. Which implication is most important?
A) The drug is always safe without monitoring
NURS 5334 Quiz 1 Practice Assessment | 2026/2027 Edition | Page 2
, B) The drug is eliminated only by the kidneys
C) The drug cannot interact with other medications
D) Small concentration changes may cause toxicity or loss of effect
Correct Answer: D) Small concentration changes may cause toxicity or loss of effect
Rationale: A narrow therapeutic index means the concentration range between therapeutic and toxic effects is
small. Dosing changes, organ dysfunction, or drug interactions can therefore have major clinical consequences.
Such medications often require closer monitoring of concentrations, response, or toxicity.
5. Which condition is most likely to increase the free fraction of a highly protein-bound drug?
A) Hypoalbuminemia
B) Increased gastric acidity
C) Hyperalbuminemia
D) Increased red blood cell count
Correct Answer: A) Hypoalbuminemia
Rationale: Many drugs bind albumin in plasma, and only the unbound fraction is readily available for distribution
and effect. Low albumin can increase the free fraction of highly bound medications and raise toxicity risk. This is
particularly relevant in malnutrition, liver disease, and other low-albumin states.
6. A drug has a very large apparent volume of distribution. What does this most strongly suggest?
A) Confinement mainly to plasma
B) Complete renal excretion
C) No protein binding
D) Extensive distribution into tissues
Correct Answer: D) Extensive distribution into tissues
Rationale: A large apparent volume of distribution usually indicates that much of the drug leaves the vascular
space and partitions into tissues. Drugs confined largely to plasma tend to have smaller volumes of distribution.
The value is theoretical rather than a true anatomic volume.
7. A medication is metabolized by CYP3A4. A strong CYP3A4 inhibitor is added. What is the most likely effect on
the substrate drug?
A) Increased substrate concentration
B) Complete loss of absorption
C) Reduced substrate concentration
D) Faster renal excretion
Correct Answer: A) Increased substrate concentration
Rationale: Enzyme inhibition slows metabolism of susceptible substrates and may increase their circulating
concentration. This can enhance therapeutic effects but also increase adverse effects or toxicity. The magnitude
depends on the substrate, inhibitor strength, and contribution of that metabolic pathway.
8. What effect would a strong enzyme inducer usually have on a drug that is an active CYP substrate?
A) Decrease plasma concentration
B) Decrease metabolism
NURS 5334 Quiz 1 Practice Assessment | 2026/2027 Edition | Page 3
, NURS 5334 QUIZ 1
Advanced Pharmacology for Nurse Practitioners
University of Texas at Arlington (UTA)
100-Question Original Practice Assessment
2026/2027 Edition
Original study assessment.
Principles of Pharmacology
1. A nurse practitioner compares pharmacokinetics with pharmacodynamics. Which statement is accurate?
A) Pharmacodynamics describes renal clearance only
B) Pharmacokinetics describes receptor activation only
C) Pharmacodynamics describes drug elimination only
D) Pharmacokinetics describes what the body does to a drug
Correct Answer: D) Pharmacokinetics describes what the body does to a drug
Rationale: Pharmacokinetics encompasses absorption, distribution, metabolism, and excretion.
Pharmacodynamics focuses on what the drug does to the body, including receptor effects and dose-response
relationships. Distinguishing these concepts helps explain why the same dose can produce different
concentrations and effects among patients.
2. Which parameter is best defined as the fraction of an administered dose that reaches systemic circulation
unchanged?
A) Bioavailability
B) Volume of distribution
C) Half-life
D) Clearance
Correct Answer: A) Bioavailability
Rationale: Bioavailability is the fraction of a dose that reaches systemic circulation in unchanged form.
Intravenous administration has bioavailability of 100% because it bypasses absorption and first-pass metabolism.
Oral bioavailability may be reduced by incomplete absorption and hepatic or intestinal first-pass metabolism.
3. A drug concentration falls from 40 mg/L to 20 mg/L over 6 hours. What is the drug's approximate half-life?
A) 3 hours
B) 12 hours
C) 20 hours
D) 6 hours
Correct Answer: D) 6 hours
Rationale: Half-life is the time required for a drug concentration or amount in the body to decrease by 50%. A fall
from 40 mg/L to 20 mg/L represents one half-life. Therefore, the observed half-life is approximately 6 hours.
4. A medication has a narrow therapeutic index. Which implication is most important?
A) The drug is always safe without monitoring
NURS 5334 Quiz 1 Practice Assessment | 2026/2027 Edition | Page 2
, B) The drug is eliminated only by the kidneys
C) The drug cannot interact with other medications
D) Small concentration changes may cause toxicity or loss of effect
Correct Answer: D) Small concentration changes may cause toxicity or loss of effect
Rationale: A narrow therapeutic index means the concentration range between therapeutic and toxic effects is
small. Dosing changes, organ dysfunction, or drug interactions can therefore have major clinical consequences.
Such medications often require closer monitoring of concentrations, response, or toxicity.
5. Which condition is most likely to increase the free fraction of a highly protein-bound drug?
A) Hypoalbuminemia
B) Increased gastric acidity
C) Hyperalbuminemia
D) Increased red blood cell count
Correct Answer: A) Hypoalbuminemia
Rationale: Many drugs bind albumin in plasma, and only the unbound fraction is readily available for distribution
and effect. Low albumin can increase the free fraction of highly bound medications and raise toxicity risk. This is
particularly relevant in malnutrition, liver disease, and other low-albumin states.
6. A drug has a very large apparent volume of distribution. What does this most strongly suggest?
A) Confinement mainly to plasma
B) Complete renal excretion
C) No protein binding
D) Extensive distribution into tissues
Correct Answer: D) Extensive distribution into tissues
Rationale: A large apparent volume of distribution usually indicates that much of the drug leaves the vascular
space and partitions into tissues. Drugs confined largely to plasma tend to have smaller volumes of distribution.
The value is theoretical rather than a true anatomic volume.
7. A medication is metabolized by CYP3A4. A strong CYP3A4 inhibitor is added. What is the most likely effect on
the substrate drug?
A) Increased substrate concentration
B) Complete loss of absorption
C) Reduced substrate concentration
D) Faster renal excretion
Correct Answer: A) Increased substrate concentration
Rationale: Enzyme inhibition slows metabolism of susceptible substrates and may increase their circulating
concentration. This can enhance therapeutic effects but also increase adverse effects or toxicity. The magnitude
depends on the substrate, inhibitor strength, and contribution of that metabolic pathway.
8. What effect would a strong enzyme inducer usually have on a drug that is an active CYP substrate?
A) Decrease plasma concentration
B) Decrease metabolism
NURS 5334 Quiz 1 Practice Assessment | 2026/2027 Edition | Page 3
