PN PHARMACOLOGY EXAM QUESTIONS AND VERIFIED ANSWERS |
100% CORRECT | GRADE A+
CORE DOMAINS
• Pharmacokinetics and Pharmacodynamics
• Medication Safety and Administration
• Cardiovascular and Hematologic Medications
• Endocrine and Metabolic Medications
• Respiratory and Allergic Disorder Medications
• Anti-Infective Medications
• Gastrointestinal and Renal Medications
• Neurological and Psychiatric Medications
• Pain Management and Musculoskeletal Medications
• Maternal, Pediatric, and Emergency Medications
• Dosage Calculation and Medication Reconciliation
INTRODUCTION
This comprehensive examination is designed for practical nursing students
preparing for a PN Pharmacology Exam. It contains verified questions with
correct answers and detailed rationales covering the core domains of
practical nursing pharmacology. The examination mirrors the format of
standardized PN pharmacology exams and emphasizes clinical judgment,
medication safety, prioritization, and patient-centered care. Each question
is accompanied by a detailed rationale to reinforce understanding of
pharmacological concepts and safe medication administration practices.
SECTION ONE: QUESTIONS 1–100
1. A practical nurse is reviewing pharmacokinetics. Which statement
best describes medication absorption?
,A. Movement of a medication from the bloodstream into tissues
B. Chemical alteration of a medication by the liver
C. Movement of a medication from the administration site into the
bloodstream
D. Removal of a medication from the body through the kidneys
C. Movement of a medication from the administration site into the
bloodstream
RATIONALE: Absorption is the movement of a medication from its site
of administration into systemic circulation. Distribution moves drug to
tissues, metabolism alters it, and excretion removes it.
2. A nurse administers a medication intravenously. Which
pharmacokinetic characteristic should the nurse expect?
A. Delayed absorption
B. Complete bioavailability
C. Extensive first-pass metabolism
D. Slow onset of action
B. Complete bioavailability
RATIONALE: IV medications enter the bloodstream directly, producing
essentially 100% bioavailability and rapid onset. They bypass first-pass
metabolism.
3. Which organ is primarily responsible for metabolizing most
medications?
A. Heart
B. Liver
C. Spleen
D. Pancreas
B. Liver
RATIONALE: The liver is the major site of drug metabolism through
hepatic enzymes.
,4. A nurse is preparing to administer a medication with a narrow
therapeutic index. Which action is most important?
A. Administer with food
B. Give at bedtime
C. Encourage increased fluids
D. Monitor serum medication levels as prescribed
D. Monitor serum medication levels as prescribed
RATIONALE: Narrow therapeutic index drugs have a small difference
between therapeutic and toxic levels. Serum monitoring helps prevent
toxicity.
5. A client asks why a medication dose must be adjusted because of
kidney disease. Which response is most appropriate?
A. "The kidneys produce most medications."
B. "Impaired kidney function can decrease medication excretion."
C. "Kidney disease increases medication absorption."
D. "The kidneys convert all medications into active metabolites."
B. "Impaired kidney function can decrease medication excretion."
RATIONALE: Many drugs or metabolites are eliminated renally.
Reduced renal function can cause accumulation and toxicity.
6. A nurse is administering a medication extensively metabolized by
the liver. Which laboratory value is most important to monitor?
A. Alanine aminotransferase (ALT)
B. Hemoglobin
C. Serum sodium
D. Platelet count
A. Alanine aminotransferase (ALT)
RATIONALE: ALT is a marker of hepatocellular injury and should be
monitored when hepatotoxicity is possible.
7. Which medication route generally produces the fastest systemic
effect?
, A. Oral
B. Subcutaneous
C. Intramuscular
D. Intravenous
D. Intravenous
RATIONALE: IV medications enter the bloodstream directly and
generally have the most rapid systemic onset.
8. A nurse is caring for an older adult taking several medications.
Which physiologic change increases the risk of toxicity?
A. Increased total body water
B. Increased hepatic metabolism
C. Decreased renal clearance
D. Increased serum albumin
C. Decreased renal clearance
RATIONALE: Aging decreases renal function, slowing elimination of
renally excreted drugs and increasing serum levels.
9. Which medication administration practice best reduces medication
errors?
A. Administering quickly to save time
B. Verifying the five rights of medication administration
C. Preparing medications for multiple clients at once
D. Using abbreviations when documenting
B. Verifying the five rights of medication administration
RATIONALE: Right patient, medication, dose, route, and time are
fundamental to safe administration.
10. A client develops wheezing, facial swelling, and hypotension after
an antibiotic. Which medication should the nurse anticipate
administering first?
A. Acetaminophen
B. Epinephrine
100% CORRECT | GRADE A+
CORE DOMAINS
• Pharmacokinetics and Pharmacodynamics
• Medication Safety and Administration
• Cardiovascular and Hematologic Medications
• Endocrine and Metabolic Medications
• Respiratory and Allergic Disorder Medications
• Anti-Infective Medications
• Gastrointestinal and Renal Medications
• Neurological and Psychiatric Medications
• Pain Management and Musculoskeletal Medications
• Maternal, Pediatric, and Emergency Medications
• Dosage Calculation and Medication Reconciliation
INTRODUCTION
This comprehensive examination is designed for practical nursing students
preparing for a PN Pharmacology Exam. It contains verified questions with
correct answers and detailed rationales covering the core domains of
practical nursing pharmacology. The examination mirrors the format of
standardized PN pharmacology exams and emphasizes clinical judgment,
medication safety, prioritization, and patient-centered care. Each question
is accompanied by a detailed rationale to reinforce understanding of
pharmacological concepts and safe medication administration practices.
SECTION ONE: QUESTIONS 1–100
1. A practical nurse is reviewing pharmacokinetics. Which statement
best describes medication absorption?
,A. Movement of a medication from the bloodstream into tissues
B. Chemical alteration of a medication by the liver
C. Movement of a medication from the administration site into the
bloodstream
D. Removal of a medication from the body through the kidneys
C. Movement of a medication from the administration site into the
bloodstream
RATIONALE: Absorption is the movement of a medication from its site
of administration into systemic circulation. Distribution moves drug to
tissues, metabolism alters it, and excretion removes it.
2. A nurse administers a medication intravenously. Which
pharmacokinetic characteristic should the nurse expect?
A. Delayed absorption
B. Complete bioavailability
C. Extensive first-pass metabolism
D. Slow onset of action
B. Complete bioavailability
RATIONALE: IV medications enter the bloodstream directly, producing
essentially 100% bioavailability and rapid onset. They bypass first-pass
metabolism.
3. Which organ is primarily responsible for metabolizing most
medications?
A. Heart
B. Liver
C. Spleen
D. Pancreas
B. Liver
RATIONALE: The liver is the major site of drug metabolism through
hepatic enzymes.
,4. A nurse is preparing to administer a medication with a narrow
therapeutic index. Which action is most important?
A. Administer with food
B. Give at bedtime
C. Encourage increased fluids
D. Monitor serum medication levels as prescribed
D. Monitor serum medication levels as prescribed
RATIONALE: Narrow therapeutic index drugs have a small difference
between therapeutic and toxic levels. Serum monitoring helps prevent
toxicity.
5. A client asks why a medication dose must be adjusted because of
kidney disease. Which response is most appropriate?
A. "The kidneys produce most medications."
B. "Impaired kidney function can decrease medication excretion."
C. "Kidney disease increases medication absorption."
D. "The kidneys convert all medications into active metabolites."
B. "Impaired kidney function can decrease medication excretion."
RATIONALE: Many drugs or metabolites are eliminated renally.
Reduced renal function can cause accumulation and toxicity.
6. A nurse is administering a medication extensively metabolized by
the liver. Which laboratory value is most important to monitor?
A. Alanine aminotransferase (ALT)
B. Hemoglobin
C. Serum sodium
D. Platelet count
A. Alanine aminotransferase (ALT)
RATIONALE: ALT is a marker of hepatocellular injury and should be
monitored when hepatotoxicity is possible.
7. Which medication route generally produces the fastest systemic
effect?
, A. Oral
B. Subcutaneous
C. Intramuscular
D. Intravenous
D. Intravenous
RATIONALE: IV medications enter the bloodstream directly and
generally have the most rapid systemic onset.
8. A nurse is caring for an older adult taking several medications.
Which physiologic change increases the risk of toxicity?
A. Increased total body water
B. Increased hepatic metabolism
C. Decreased renal clearance
D. Increased serum albumin
C. Decreased renal clearance
RATIONALE: Aging decreases renal function, slowing elimination of
renally excreted drugs and increasing serum levels.
9. Which medication administration practice best reduces medication
errors?
A. Administering quickly to save time
B. Verifying the five rights of medication administration
C. Preparing medications for multiple clients at once
D. Using abbreviations when documenting
B. Verifying the five rights of medication administration
RATIONALE: Right patient, medication, dose, route, and time are
fundamental to safe administration.
10. A client develops wheezing, facial swelling, and hypotension after
an antibiotic. Which medication should the nurse anticipate
administering first?
A. Acetaminophen
B. Epinephrine
