(2026 Edition)|| Questions And
Answers With Rationales/Graded
A+/2026 Update/100% Correct
/Instant Download
Total Questions: 185
Format: Multiple Choice
Target Audience: Pre-licensure nursing students (BSN/ADN)
Focus Areas: Pharmacokinetics, pharmacodynamics, major drug classes, adverse
effects, nursing interventions, patient education, and safe medication
administration.
Section 1: Foundational Principles of Pharmacology (Questions 1–25)
1. A nurse is preparing to administer a medication that has a high first-pass
effect. Which route should the nurse anticipate to avoid this effect?
A) Oral
B) Sublingual
C) Rectal
D) Intramuscular
Correct Answer: B
Rationale: The first-pass effect occurs when drugs are metabolized in the liver
after oral absorption. Sublingual administration bypasses the hepatic portal system,
delivering the drug directly into systemic circulation.
2. Which phase of pharmacokinetics is primarily responsible for the
movement of a drug from the bloodstream into tissues and cells?
A) Absorption
B) Distribution
, C) Metabolism
D) Excretion
Correct Answer: B
Rationale: Distribution refers to the transport of a drug via the bloodstream to its
site of action. Absorption is entry into blood, metabolism is biotransformation,
excretion is elimination.
3. A patient with liver cirrhosis is prescribed a drug that is highly protein-
bound. The nurse understands that this patient is at increased risk for:
A) Reduced drug efficacy
B) Drug toxicity
C) Faster drug excretion
D) Allergic reaction
Correct Answer: B
Rationale: Liver disease reduces albumin production, leading to more free
(unbound) active drug, increasing the risk of toxicity.
4. The half-life of a drug is 4 hours. How much of the drug will remain in the
body after 16 hours?
A) 50%
B) 25%
C) 12.5%
D) 6.25%
Correct Answer: D
Rationale: After 1 half-life (4h): 50%; 2nd (8h): 25%; 3rd (12h): 12.5%; 4th (16h):
6.25%.
5. A nurse administers naloxone to a patient with opioid overdose. The
naloxone binds to the same receptors as morphine but produces no effect,
blocking the morphine. This is an example of:
A) Agonist
B) Partial agonist
C) Antagonist
D) Allosteric modulator
Correct Answer: C
Rationale: An antagonist binds to receptors and blocks the action of an agonist.
Naloxone is a competitive antagonist at mu-opioid receptors.