Lehne's Pharmacology for Nursing Care –
Comprehensive Practice Exam
EXAM OVERVIEW
Lehne's Pharmacology for Nursing Care is a comprehensive pharmacology
textbook designed for nursing students, emphasizing safe, effective patient
care through an understanding of drug mechanisms, therapeutic uses, and
nursing implications . The text is organized to highlight the clinical
relevance of pharmacology, integrating core concepts such as
pharmacokinetics, pharmacodynamics, drug interactions, adverse effects,
and patient teaching . This exam simulates the types of questions nursing
students encounter in pharmacology courses and on the NCLEX, reflecting
the textbook's focus on clinical application and patient safety .
Key Content Areas
• Foundations of Pharmacology: Pharmacokinetics (absorption,
distribution, metabolism, excretion), pharmacodynamics (drug-
receptor interactions, agonists/antagonists), pharmacotherapeutics
• Drug Interactions: CYP450 enzyme induction/inhibition, P-
glycoprotein effects, potentiative interactions
• Peripheral Nervous System Drugs: Cholinergic and adrenergic
agonists/antagonists, neuromuscular blockers
• Central Nervous System Drugs: Alzheimer's disease (donepezil,
memantine), Parkinson's disease, antidepressants, antipsychotics,
anxiolytics, opioid analgesics
• Cardiovascular Drugs: Antihypertensives, heart failure drugs,
antidysrhythmics, anticoagulants, antiplatelets, statins
• Endocrine & Bone Drugs: Calcium supplements, vitamin D,
bisphosphonates, teriparatide, raloxifene, calcitonin
• Anti-infectives: Antibiotics, antivirals (including HIV), antifungals
, • Nursing Process: Preadministration assessment, dosage
calculations, evaluation, patient teaching
SECTION 1: Foundations of Pharmacology (Questions 1-20)
Q1. The nurse is teaching a patient how a medication works to treat an
illness. To do this, the nurse will rely on knowledge of which topic?
• A) Clinical pharmacology
• B) Drug efficacy
• C) Pharmacokinetics
• D) Pharmacotherapeutics
Answer: D – Pharmacotherapeutics is the study of the use of drugs to
diagnose, treat, and prevent conditions. Clinical pharmacology is
concerned with all aspects of drug-human interactions. Pharmacokinetics
is the study of the impact of the body on a drug .
Q2. Which action best describes a drug's pharmacodynamics?
• A) How the body absorbs the drug
• B) How the drug affects the body
• C) How the drug is eliminated
• D) How the drug is distributed
Answer: B – Pharmacodynamics refers to the biochemical and
physiological effects of drugs and their mechanisms of action on the body.
Pharmacokinetics describes what the body does to the drug .
Q3. A nurse understands that a drug's "half-life" refers to:
• A) Time required for drug absorption
• B) Time required for half the drug to be eliminated
, • C) Time required for peak effect
• D) Duration of drug action
Answer: B – Half-life is the time needed for the plasma concentration of a
drug to reduce by 50%. This helps determine dosing intervals .
Q4. Which organ is primarily responsible for drug metabolism?
• A) Kidney
• B) Liver
• C) Lung
• D) Pancreas
Answer: B – The liver is the main site of drug metabolism, primarily through
the cytochrome P450 enzyme system. The kidneys are responsible for drug
excretion .
Q5. A "therapeutic index" measures:
• A) Drug toxicity level
• B) Safety margin between effective and toxic doses
• C) Drug absorption rate
• D) Drug distribution volume
Answer: B – The therapeutic index compares the dose that produces
toxicity to the dose that produces a therapeutic effect. A narrow therapeutic
index indicates a small margin of safety and requires careful monitoring .
Q6. Which route of administration has the fastest onset of action?
• A) Oral
• B) Subcutaneous
, • C) Intravenous
• D) Intramuscular
Answer: C – IV administration delivers the drug directly into the
bloodstream, producing the fastest therapeutic effect with 100%
bioavailability .
Q7. Which route avoids first-pass metabolism?
• A) Oral
• B) Rectal
• C) Sublingual
• D) Enteral
Answer: C – Sublingual administration allows drugs to enter systemic
circulation directly, bypassing the liver initially. Oral and enteral routes
undergo first-pass metabolism .
Q8. What is the main purpose of a loading dose?
• A) Maintain steady drug levels
• B) Quickly achieve therapeutic drug levels
• C) Reduce drug toxicity
• D) Eliminate drug interactions
Answer: B – A loading dose rapidly raises drug concentration to a
therapeutic level. Maintenance doses are then given to keep levels within
the therapeutic range .
Q9. Which factor increases the risk of drug toxicity in older adults?
• A) Increased liver metabolism
• B) Increased renal clearance
Comprehensive Practice Exam
EXAM OVERVIEW
Lehne's Pharmacology for Nursing Care is a comprehensive pharmacology
textbook designed for nursing students, emphasizing safe, effective patient
care through an understanding of drug mechanisms, therapeutic uses, and
nursing implications . The text is organized to highlight the clinical
relevance of pharmacology, integrating core concepts such as
pharmacokinetics, pharmacodynamics, drug interactions, adverse effects,
and patient teaching . This exam simulates the types of questions nursing
students encounter in pharmacology courses and on the NCLEX, reflecting
the textbook's focus on clinical application and patient safety .
Key Content Areas
• Foundations of Pharmacology: Pharmacokinetics (absorption,
distribution, metabolism, excretion), pharmacodynamics (drug-
receptor interactions, agonists/antagonists), pharmacotherapeutics
• Drug Interactions: CYP450 enzyme induction/inhibition, P-
glycoprotein effects, potentiative interactions
• Peripheral Nervous System Drugs: Cholinergic and adrenergic
agonists/antagonists, neuromuscular blockers
• Central Nervous System Drugs: Alzheimer's disease (donepezil,
memantine), Parkinson's disease, antidepressants, antipsychotics,
anxiolytics, opioid analgesics
• Cardiovascular Drugs: Antihypertensives, heart failure drugs,
antidysrhythmics, anticoagulants, antiplatelets, statins
• Endocrine & Bone Drugs: Calcium supplements, vitamin D,
bisphosphonates, teriparatide, raloxifene, calcitonin
• Anti-infectives: Antibiotics, antivirals (including HIV), antifungals
, • Nursing Process: Preadministration assessment, dosage
calculations, evaluation, patient teaching
SECTION 1: Foundations of Pharmacology (Questions 1-20)
Q1. The nurse is teaching a patient how a medication works to treat an
illness. To do this, the nurse will rely on knowledge of which topic?
• A) Clinical pharmacology
• B) Drug efficacy
• C) Pharmacokinetics
• D) Pharmacotherapeutics
Answer: D – Pharmacotherapeutics is the study of the use of drugs to
diagnose, treat, and prevent conditions. Clinical pharmacology is
concerned with all aspects of drug-human interactions. Pharmacokinetics
is the study of the impact of the body on a drug .
Q2. Which action best describes a drug's pharmacodynamics?
• A) How the body absorbs the drug
• B) How the drug affects the body
• C) How the drug is eliminated
• D) How the drug is distributed
Answer: B – Pharmacodynamics refers to the biochemical and
physiological effects of drugs and their mechanisms of action on the body.
Pharmacokinetics describes what the body does to the drug .
Q3. A nurse understands that a drug's "half-life" refers to:
• A) Time required for drug absorption
• B) Time required for half the drug to be eliminated
, • C) Time required for peak effect
• D) Duration of drug action
Answer: B – Half-life is the time needed for the plasma concentration of a
drug to reduce by 50%. This helps determine dosing intervals .
Q4. Which organ is primarily responsible for drug metabolism?
• A) Kidney
• B) Liver
• C) Lung
• D) Pancreas
Answer: B – The liver is the main site of drug metabolism, primarily through
the cytochrome P450 enzyme system. The kidneys are responsible for drug
excretion .
Q5. A "therapeutic index" measures:
• A) Drug toxicity level
• B) Safety margin between effective and toxic doses
• C) Drug absorption rate
• D) Drug distribution volume
Answer: B – The therapeutic index compares the dose that produces
toxicity to the dose that produces a therapeutic effect. A narrow therapeutic
index indicates a small margin of safety and requires careful monitoring .
Q6. Which route of administration has the fastest onset of action?
• A) Oral
• B) Subcutaneous
, • C) Intravenous
• D) Intramuscular
Answer: C – IV administration delivers the drug directly into the
bloodstream, producing the fastest therapeutic effect with 100%
bioavailability .
Q7. Which route avoids first-pass metabolism?
• A) Oral
• B) Rectal
• C) Sublingual
• D) Enteral
Answer: C – Sublingual administration allows drugs to enter systemic
circulation directly, bypassing the liver initially. Oral and enteral routes
undergo first-pass metabolism .
Q8. What is the main purpose of a loading dose?
• A) Maintain steady drug levels
• B) Quickly achieve therapeutic drug levels
• C) Reduce drug toxicity
• D) Eliminate drug interactions
Answer: B – A loading dose rapidly raises drug concentration to a
therapeutic level. Maintenance doses are then given to keep levels within
the therapeutic range .
Q9. Which factor increases the risk of drug toxicity in older adults?
• A) Increased liver metabolism
• B) Increased renal clearance
