Pharmacology and the Nursing Process 9th Edition
Summary Test Bank EXAM with Questions and
Answers/Plus a Rationale Updated 2026 A+/Instant
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EXAM COVERAGE
1. Principles of Pharmacology and Pharmacokinetics
2. Pharmacodynamics and Drug Interactions
3. Medication Administration and Safety
4. The Nursing Process in Pharmacotherapy
5. Pharmacogenetics and Lifespan Considerations
6. Autonomic Nervous System Agents
7. Central Nervous System Agents
8. Cardiovascular and Renal Agents
9. Endocrine and Metabolic Agents
10. Anti-infective and Immunological Agents
1. A patient with renal insufficiency is prescribed a medication that is primarily excreted by the
kidneys. Which adjustment should the nurse anticipate to prevent toxicity?
A. Increasing the dosing interval
B. Decreasing the total dosage per administration
, C. Administering the drug with a diuretic
D. Switching to an intramuscular route
Answer: B
CORRECT ANSWER : B
Rationale: Decreasing the dosage is the primary method to avoid drug accumulation when renal
clearance is impaired. Increasing the interval (A) is also a valid strategy, but reducing the dose
(B) is the most direct way to maintain therapeutic blood levels. Options C and D do not address
the physiological limitation of renal excretion.
2. A patient receiving an intravenous infusion of a potent vasopressor develops signs of
extravasation. What is the nurse's priority action?
A. Apply a warm compress to the site
B. Stop the infusion immediately while leaving the cannula in place
C. Attempt to aspirate residual drug from the line
D. Elevate the affected limb above the level of the heart
Answer: B
CORRECT ANSWER : B
Rationale: Stopping the infusion is critical to prevent further tissue necrosis. Leaving the
cannula in place (B) is necessary to potentially administer an antidote through the existing
catheter. Options A, C, and D are either ineffective or could worsen the tissue damage.
3. A nurse is reviewing a medication order for an elderly patient. Which pharmacokinetic change
associated with aging must be considered regarding drug distribution?
A. Decreased total body water
B. Increased body fat percentage
C. Decreased hepatic blood flow
D. Increased serum albumin levels
Answer: B
CORRECT ANSWER : B
, Rationale: Aging results in a higher proportion of body fat, which increases the volume of
distribution for lipid-soluble drugs, leading to prolonged effects. Decreased total body water (A)
affects distribution but is not the primary factor for lipophilic drug storage. Options C and D are
incorrect because hepatic flow decreases and albumin usually decreases with age.
4. A patient is taking a drug that is a strong inducer of the cytochrome P-450 (CYP450) system.
What clinical effect should the nurse monitor for?
A. Increased toxicity of all co-administered drugs
B. Decreased therapeutic effect of other drugs metabolized by this pathway
C. Increased half-life of all medications
D. Immediate allergic reaction to the primary drug
Answer: B
CORRECT ANSWER : B
Rationale: Enzyme inducers increase the rate of metabolism of other drugs metabolized by the
CYP450 system, leading to subtherapeutic levels. This is the opposite of inhibition, which would
cause toxicity (A) or increased half-life (C). Allergic reactions (D) are unrelated to enzyme
induction.
5. A patient is prescribed a narrow therapeutic index medication. What is the most critical nursing
intervention?
A. Administering the drug on an empty stomach
B. Monitoring plasma drug levels regularly
C. Evaluating for placebo effects
D. Assessing the patient's financial ability to pay for the drug
Answer: B
CORRECT ANSWER : B
Rationale: Medications with a narrow therapeutic index have a small window between
therapeutic effect and toxicity, making frequent serum monitoring essential. While the other
options may be relevant in general practice, monitoring (B) is the safety priority.
6. A nurse is preparing to administer a sustained-release (SR) tablet. The patient requests to crush it
to make it easier to swallow. What is the nurse's best response?
, A. "I will crush it and mix it with applesauce."
B. "Crushing this tablet will cause a rapid, potentially dangerous release of the
medication."
C. "I will call the physician to see if you can have a liquid form."
D. "I will crush only half of the tablet."
Answer: B
CORRECT ANSWER : B
Rationale: Sustained-release formulations rely on a special coating or matrix to release the drug
slowly; crushing destroys this mechanism, leading to dose dumping. Options A and D are
contraindicated, and while C is helpful, B is the necessary education.
7. A patient is experiencing an "idiosyncratic" drug reaction. How is this defined?
A. A dose-dependent, predictable side effect
B. An abnormal and unexpected response specific to the individual's genetics
C. An immune-mediated hypersensitivity reaction
D. An exaggerated pharmacological response to the standard dose
Answer: B
CORRECT ANSWER : B
Rationale: Idiosyncratic reactions are unique to the individual and often linked to genetic
enzyme deficiencies, making them unpredictable. Options A and D describe toxicity or
sensitivity, and C describes an allergic reaction.
8. When assessing for drug interactions, the nurse knows that "synergistic effects" occur when:
A. One drug inhibits the metabolism of another
B. Two drugs interact to produce an effect greater than the sum of their individual effects
C. Two drugs are given that have opposite physiological effects
D. The patient develops a tolerance to the combined drugs
Answer: B
Summary Test Bank EXAM with Questions and
Answers/Plus a Rationale Updated 2026 A+/Instant
Download PDF
EXAM COVERAGE
1. Principles of Pharmacology and Pharmacokinetics
2. Pharmacodynamics and Drug Interactions
3. Medication Administration and Safety
4. The Nursing Process in Pharmacotherapy
5. Pharmacogenetics and Lifespan Considerations
6. Autonomic Nervous System Agents
7. Central Nervous System Agents
8. Cardiovascular and Renal Agents
9. Endocrine and Metabolic Agents
10. Anti-infective and Immunological Agents
1. A patient with renal insufficiency is prescribed a medication that is primarily excreted by the
kidneys. Which adjustment should the nurse anticipate to prevent toxicity?
A. Increasing the dosing interval
B. Decreasing the total dosage per administration
, C. Administering the drug with a diuretic
D. Switching to an intramuscular route
Answer: B
CORRECT ANSWER : B
Rationale: Decreasing the dosage is the primary method to avoid drug accumulation when renal
clearance is impaired. Increasing the interval (A) is also a valid strategy, but reducing the dose
(B) is the most direct way to maintain therapeutic blood levels. Options C and D do not address
the physiological limitation of renal excretion.
2. A patient receiving an intravenous infusion of a potent vasopressor develops signs of
extravasation. What is the nurse's priority action?
A. Apply a warm compress to the site
B. Stop the infusion immediately while leaving the cannula in place
C. Attempt to aspirate residual drug from the line
D. Elevate the affected limb above the level of the heart
Answer: B
CORRECT ANSWER : B
Rationale: Stopping the infusion is critical to prevent further tissue necrosis. Leaving the
cannula in place (B) is necessary to potentially administer an antidote through the existing
catheter. Options A, C, and D are either ineffective or could worsen the tissue damage.
3. A nurse is reviewing a medication order for an elderly patient. Which pharmacokinetic change
associated with aging must be considered regarding drug distribution?
A. Decreased total body water
B. Increased body fat percentage
C. Decreased hepatic blood flow
D. Increased serum albumin levels
Answer: B
CORRECT ANSWER : B
, Rationale: Aging results in a higher proportion of body fat, which increases the volume of
distribution for lipid-soluble drugs, leading to prolonged effects. Decreased total body water (A)
affects distribution but is not the primary factor for lipophilic drug storage. Options C and D are
incorrect because hepatic flow decreases and albumin usually decreases with age.
4. A patient is taking a drug that is a strong inducer of the cytochrome P-450 (CYP450) system.
What clinical effect should the nurse monitor for?
A. Increased toxicity of all co-administered drugs
B. Decreased therapeutic effect of other drugs metabolized by this pathway
C. Increased half-life of all medications
D. Immediate allergic reaction to the primary drug
Answer: B
CORRECT ANSWER : B
Rationale: Enzyme inducers increase the rate of metabolism of other drugs metabolized by the
CYP450 system, leading to subtherapeutic levels. This is the opposite of inhibition, which would
cause toxicity (A) or increased half-life (C). Allergic reactions (D) are unrelated to enzyme
induction.
5. A patient is prescribed a narrow therapeutic index medication. What is the most critical nursing
intervention?
A. Administering the drug on an empty stomach
B. Monitoring plasma drug levels regularly
C. Evaluating for placebo effects
D. Assessing the patient's financial ability to pay for the drug
Answer: B
CORRECT ANSWER : B
Rationale: Medications with a narrow therapeutic index have a small window between
therapeutic effect and toxicity, making frequent serum monitoring essential. While the other
options may be relevant in general practice, monitoring (B) is the safety priority.
6. A nurse is preparing to administer a sustained-release (SR) tablet. The patient requests to crush it
to make it easier to swallow. What is the nurse's best response?
, A. "I will crush it and mix it with applesauce."
B. "Crushing this tablet will cause a rapid, potentially dangerous release of the
medication."
C. "I will call the physician to see if you can have a liquid form."
D. "I will crush only half of the tablet."
Answer: B
CORRECT ANSWER : B
Rationale: Sustained-release formulations rely on a special coating or matrix to release the drug
slowly; crushing destroys this mechanism, leading to dose dumping. Options A and D are
contraindicated, and while C is helpful, B is the necessary education.
7. A patient is experiencing an "idiosyncratic" drug reaction. How is this defined?
A. A dose-dependent, predictable side effect
B. An abnormal and unexpected response specific to the individual's genetics
C. An immune-mediated hypersensitivity reaction
D. An exaggerated pharmacological response to the standard dose
Answer: B
CORRECT ANSWER : B
Rationale: Idiosyncratic reactions are unique to the individual and often linked to genetic
enzyme deficiencies, making them unpredictable. Options A and D describe toxicity or
sensitivity, and C describes an allergic reaction.
8. When assessing for drug interactions, the nurse knows that "synergistic effects" occur when:
A. One drug inhibits the metabolism of another
B. Two drugs interact to produce an effect greater than the sum of their individual effects
C. Two drugs are given that have opposite physiological effects
D. The patient develops a tolerance to the combined drugs
Answer: B
