, NURS 5334 PHARMACOLOGY MODULE 1 QUIZ
Advanced Pharmacology for Nurse Practitioners
University of Texas at Arlington (UTA) 100-Question
Practice Quiz
2026/2027 Edition
Pharmacologic Principles
1. Bioavailability is best defined as which property of a medication?
A) The fraction of an administered dose that reaches systemic circulation unchanged
B) The amount stored in adipose tissue
C) The time required for half the dose to be excreted
D) The percentage bound to albumin
Correct Answer: A) The fraction of an administered dose that reaches systemic circulation unchanged
Rationale: Bioavailability describes how much of an administered dose reaches systemic circulation in active form.
Intravenous administration is considered 100% bioavailable, whereas oral drugs may have incomplete absorption or
first-pass metabolism that lowers systemic availability.
2. A drug is extensively metabolized in the liver before reaching systemic circulation after oral
dosing. Which process is occurring?
A) Enterohepatic recirculation
B) First-pass metabolism
C) Renal tubular secretion
D) Zero-order elimination
Correct Answer: B) First-pass metabolism
Rationale: First-pass metabolism occurs when an absorbed oral drug passes through the intestinal wall and liver
before reaching the systemic circulation. Extensive first-pass metabolism can markedly reduce oral bioavailability
and influence route or dose selection.
3. The half-life of a medication is the time required for what change?
A) The drug to reach 100% receptor occupancy
B) The plasma concentration to decrease by approximately 50%
C) The kidneys to excrete the entire dose
D) The dose to become fully absorbed
Correct Answer: B) The plasma concentration to decrease by approximately 50%
Rationale: Half-life is the time needed for plasma drug concentration to fall by roughly half during the elimination
phase. It helps determine dosing intervals, time to steady state, and the duration of accumulation or washout.
4. For most drugs given repeatedly at a stable dose, steady state is typically approached after
approximately how many half-lives?
NURS 5334 Module 1 Quiz | Advanced Pharmacology | Original Practice Quiz Page 2
, A) One half-life
B) One-quarter of a half-life
C) Twenty half-lives
D) Four to five half-lives
Correct Answer: D) Four to five half-lives
Rationale: With first-order elimination, repeated dosing usually reaches near steady state after about four to five
half-lives. This principle helps determine when a serum concentration should be interpreted as reflecting a stable
dosing regimen.
5. A loading dose is most useful when the prescriber wants to achieve which goal?
A) Slow absorption from the gut
B) Reach a therapeutic concentration rapidly
C) Reduce bioavailability to zero
D) Prevent all adverse effects
Correct Answer: B) Reach a therapeutic concentration rapidly
Rationale: A loading dose is larger than a maintenance dose and is used to reach a desired concentration quickly,
especially for drugs with long half-lives. Maintenance dosing then replaces the amount eliminated over time.
6. Clearance refers to which pharmacokinetic concept?
A) The percentage of dose absorbed orally
B) The time to peak pharmacodynamic effect only
C) The volume of plasma from which drug is completely removed per unit time
D) The total amount of drug bound to receptors
Correct Answer: C) The volume of plasma from which drug is completely removed per unit time
Rationale: Clearance describes the efficiency of drug elimination and is commonly expressed as a volume per unit
time. Renal and hepatic clearance strongly influence maintenance dosing and drug accumulation.
7. A medication with a large volume of distribution is most likely to have which characteristic?
A) No tissue binding
B) Immediate renal elimination of the full dose
C) Confinement almost entirely to plasma
D) Extensive distribution outside the plasma compartment
Correct Answer: D) Extensive distribution outside the plasma compartment
Rationale: A large apparent volume of distribution suggests that much of the drug leaves plasma and distributes into
tissues or body compartments. This can affect loading-dose calculations and the usefulness of extracorporeal
removal.
8. Which fraction of a protein-bound drug is generally available to cross membranes and interact
with receptors?
A) The albumin-bound fraction only
NURS 5334 Module 1 Quiz | Advanced Pharmacology | Original Practice Quiz Page 3