Questions with Verified Answers & Detailed Rationales | All Core Domains Covered | A+ Graded
TABLE OF CONTENTS
| Section | Topic | Questions |
|---------|-------|-----------|
| Exam Overview | Test Format, Blueprint, and Study Strategies | — |
| Section 1 | Pharmacokinetics & Pharmacodynamics | 1–45 |
| Section 2 | Autonomic & Central Nervous System Pharmacology | 46–75 |
| Section 3 | Cardiovascular & Renal Pharmacology | 76–130 |
| Section 4 | Respiratory & Allergy Pharmacology | 131–155 |
| Section 5 | Endocrine & Metabolic Pharmacology | 156–195 |
| Section 6 | Neurologic & Psychiatric Pharmacology | 196–230 |
| Section 7 | Infectious Disease & Antimicrobials | 231–270 |
| Section 8 | Special Populations, Toxicology & Clinical Application | 271–300 |
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EXAM OVERVIEW
WGU D116 – Advanced Pharmacology for the Advanced Practice Nurse
D116 Advanced Pharmacology is a core course in the WGU nursing curriculum that provides
foundational knowledge of pharmacokinetics, pharmacodynamics, and the clinical application
of major drug classes. The Objective Assessment (OA) evaluates competency in applying
pharmacological principles to patient care across the lifespan.
,Exam Blueprint
| Domain | Weight | Approx. Questions |
|--------|--------|-------------------|
| Pharmacokinetics & Pharmacodynamics | 15% | 45 |
| Cardiovascular & Renal Pharmacology | 20% | 60 |
| Respiratory & Allergy Pharmacology | 10% | 30 |
| Endocrine & Metabolic Pharmacology | 15% | 45 |
| Neurologic & Psychiatric Pharmacology | 15% | 45 |
| Infectious Disease & Antimicrobials | 15% | 45 |
| Special Populations, Toxicology & Clinical Application | 10% | 30 |
Test Format
- Total Questions: 300 practice questions in this bank
- Passing Threshold: 70%
- Question Types: Multiple-choice, clinical scenarios, mechanism of action, adverse effects, and
drug selection
- Time Limit: 3 hours (simulated)
How to Use This Study Guide
Each question includes a realistic clinical scenario or direct pharmacology question, four answer
choices, the correct answer, and a detailed rationale explaining the pharmacological reasoning.
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,SECTION 1: PHARMACOKINETICS & PHARMACODYNAMICS
Questions 1–45
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Question 1
Which of the following best describes pharmacokinetics?
- A) The study of drug effects on the body
- B) The study of drug absorption, distribution, metabolism, and excretion (ADME)
- C) The study of drug toxicity
- D) The study of drug interactions
Answer: B
Rationale: Pharmacokinetics is "what the body does to the drug" and encompasses the four
processes of Absorption, Distribution, Metabolism, and Excretion (ADME). Pharmacodynamics,
in contrast, is "what the drug does to the body"—the study of drug effects and mechanisms of
action.
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Question 2
The "first-pass effect" refers to:
- A) Rapid intravenous administration
- B) Drug metabolism in the liver before reaching systemic circulation
- C) Drug excretion by the kidneys
, - D) Drug binding to plasma proteins
Answer: B
Rationale: The first-pass effect occurs when a drug is metabolized in the liver before reaching
systemic circulation, which reduces the bioavailability of orally administered drugs. Drugs like
nitroglycerin and morphine require higher oral doses or alternative routes to bypass this effect.
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Question 3
Bioavailability is defined as:
- A) The speed of drug absorption
- B) The fraction of an administered dose that reaches systemic circulation unchanged
- C) The volume of distribution
- D) The half-life of the drug
Answer: B
Rationale: Bioavailability measures how much of an administered dose reaches the bloodstream
unchanged. Intravenous (IV) administration has 100% bioavailability because it bypasses
absorption and first-pass metabolism.
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Question 4
Which route of administration has the highest bioavailability and fastest onset of action?