Guide 2026
Description:
Unlock success with our concise, expertly crafted NURS8024 study guide for 2026! Master
pharmacokinetics, pharmacodynamics, drug administration, and FDA regulations with clear
answers, detailed explanations, and real-world case studies. Perfect for advanced practice nursing
students, this guide ensures you ace your pharmacology exam with confidence.
Download now and elevate your nursing expertise!
,Master NURS8024: Ace Your Pharmacology Exam with Our 2026
Study Guide
1. What is the difference between pharmacokinetics and pharmacodynamics?
Answer: Pharmacokinetics studies the absorption, distribution, metabolism, and
elimination of drugs ("what the body does to the drug"). Pharmacodynamics examines
the actions of the chemical on the organism ("what the drug does to the body").
Explanation: Pharmacokinetics tracks a drug’s journey through the body, covering how
it enters the bloodstream, reaches tissues, is transformed, and is excreted.
Pharmacodynamics focuses on the drug’s effects, such as binding to receptors to produce
therapeutic or adverse outcomes, crucial for understanding drug action.
Case Study: A patient receives oral amoxicillin. Pharmacokinetics describes its
absorption in the gut and metabolism in the liver, while pharmacodynamics explains its
antibacterial effect on Streptococcus.
2. What is pharmacogenomics?
Answer: Pharmacogenomics studies genetic variations that cause differences in drug
responses among individuals or populations.
Explanation: By analyzing genetic profiles, pharmacogenomics predicts drug efficacy
and safety, enabling personalized treatment. For example, CYP2C19 variants affect
clopidogrel metabolism, guiding antiplatelet therapy.
Case Study: A patient with a CYP2D6 mutation may require a lower dose of codeine due
to altered metabolism, reducing toxicity risk.
3. What is the difference between a pharmacologic agonist and an antagonist?
Answer: An agonist activates a receptor to cause an effect, while an antagonist prevents
binding and inhibits receptor activation.
, Explanation: Agonists, like albuterol for asthma, mimic natural ligands to trigger
responses. Antagonists, like naloxone for opioid overdose, block receptors to prevent
agonist effects, critical in overdose reversal.
Case Study: In opioid overdose, naloxone (antagonist) reverses respiratory depression
caused by morphine (agonist).
4. What is a pro-drug?
Answer: A pro-drug is an inactive precursor converted to its active form by biologic
processes after absorption and distribution.
Explanation: Pro-drugs, like enalapril, are activated (e.g., to enalaprilat) in the liver to
improve bioavailability or reduce toxicity, optimizing therapeutic delivery.
Case Study: Enalapril is metabolized to enalaprilat, lowering blood pressure effectively
in hypertension.
5. What is the fundamental pathway of drugs?
Answer: ADME: Absorption, Distribution, Metabolism, Elimination.
Explanation: ADME outlines a drug’s lifecycle: absorption into plasma, distribution to
tissues, metabolism (often in the liver), and elimination via urine, bile, or other routes,
guiding dosing strategies.
Case Study: Ibuprofen is absorbed in the stomach, distributed to inflamed tissues,
metabolized by the liver, and excreted in urine.
6. What are the two main routes of drug administration?
Answer: a) Enteral (oral/rectal) b) Parenteral (IV, IM, SubQ)