PHARMACOLOGY & MEDICATION SAFETY
PHARMACOLOGY
Original Questions & Clinical Applications
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
, Pharmacology for Nurses Practice Exam 2026–
2027
Original Questions & Clinical Applications
Question 1
A nurse is teaching a client about oral
medication absorption. Which factor can most directly delay the absorption of
an orally administered medication?
A. Increased renal blood flow
B. Delayed gastric emptying
C. Increased hepatic metabolism
D. Increased urinary output
Correct Answer: B. Delayed gastric emptying
Rationale:
Orally administered medications must pass through the gastrointestinal tract
before reaching systemic circulation. Delayed gastric emptying can slow the
movement of medication into the small intestine, where many drugs are absorbed
most efficiently. Therefore, absorption may be delayed.
Why the other options are incorrect:
A. Increased renal blood flow: Primarily affects renal elimination rather than
gastrointestinal absorption.
C. Increased hepatic metabolism: Affects first-pass metabolism and drug availability after
absorption, not the initial absorption process itself.
D. Increased urinary output: May influence drug elimination but does not directly delay
gastrointestinal absorption.
---
Question 2
A client is prescribed a medication with a narrow
therapeutic index. Which nursing action is most important?
A. Administer the medication without laboratory monitoring
B. Monitor the client for therapeutic and toxic effects
C. Double the dose if the initial response is inadequate
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
, D. Administer the medication only when symptoms become severe
Correct Answer: B. Monitor the client for therapeutic and
toxic effects**
Rationale:
Drugs with a narrow therapeutic index have a small difference between effective
and toxic concentrations. Close monitoring of clinical response and, when
appropriate, serum drug levels helps prevent toxicity while maintaining
therapeutic effectiveness.
Why the other options are incorrect:
A: Lack of monitoring increases the risk of undetected toxicity.
C: Increasing the dose without assessment can produce toxic concentrations.
D: These medications are generally administered according to the prescribed schedule
rather than only when symptoms become severe.
---
Question 3
A nurse discovers that a medication was
administered to the wrong client. What should the nurse do first?
A. Complete the incident report
B. Notify the nurse manager
C. Assess the client
D. Document the error in the medical record
Correct Answer: C. Assess the client
Rationale:
After a medication error, the immediate priority is determining whether the
client has been harmed or is at risk of harm. The nurse should assess the
client, obtain appropriate vital signs and clinical information, and then
notify the appropriate healthcare provider and follow institutional
medication-error procedures.
Why the other options are incorrect:
A: Incident reporting is important but should not precede immediate client assessment.
B: Notification may be necessary, but assessment comes first.
D: Documentation is required, but immediate clinical evaluation takes priority.
---
Question 4
A client asks why a medication prescribed once
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
, daily should be taken at approximately the same time every day. Which response
is most appropriate?
A. "It prevents every possible adverse effect."
B. "It helps maintain a relatively consistent drug concentration."
C. "It guarantees that the medication will cure the condition."
D. "It eliminates the need for laboratory monitoring."
Correct Answer: B. "It helps maintain a relatively
consistent drug concentration."**
Rationale:
Consistent administration intervals help maintain therapeutic drug
concentrations and reduce excessive fluctuations between peak and trough
levels.
Why the other options are incorrect:
A: Adverse effects can still occur despite consistent administration.
C: Timing does not guarantee a cure.
D: Some medications still require laboratory monitoring regardless of administration
consistency.
---
Question 5
Which client statement demonstrates correct
understanding of medication reconciliation?
A. "I only need to report prescription medications."
B. "I should include prescription drugs, over-the-counter medications, vitamins, and
herbal products."
C. "I can stop listing medications once I leave the hospital."
D. "Herbal products do not interact with prescription medications."
Correct Answer: B. "I should include prescription
drugs, over-the-counter medications, vitamins, and herbal products."**
Rationale:
Medication reconciliation requires an accurate and complete medication list.
Nonprescription products and supplements can interact with prescribed
medications and therefore must be included.
Why the other options are incorrect:
A: OTC medications and supplements can have significant effects and interactions.
C: Medication reconciliation should continue whenever medications are changed or care
transitions occur.
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
PHARMACOLOGY
Original Questions & Clinical Applications
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
, Pharmacology for Nurses Practice Exam 2026–
2027
Original Questions & Clinical Applications
Question 1
A nurse is teaching a client about oral
medication absorption. Which factor can most directly delay the absorption of
an orally administered medication?
A. Increased renal blood flow
B. Delayed gastric emptying
C. Increased hepatic metabolism
D. Increased urinary output
Correct Answer: B. Delayed gastric emptying
Rationale:
Orally administered medications must pass through the gastrointestinal tract
before reaching systemic circulation. Delayed gastric emptying can slow the
movement of medication into the small intestine, where many drugs are absorbed
most efficiently. Therefore, absorption may be delayed.
Why the other options are incorrect:
A. Increased renal blood flow: Primarily affects renal elimination rather than
gastrointestinal absorption.
C. Increased hepatic metabolism: Affects first-pass metabolism and drug availability after
absorption, not the initial absorption process itself.
D. Increased urinary output: May influence drug elimination but does not directly delay
gastrointestinal absorption.
---
Question 2
A client is prescribed a medication with a narrow
therapeutic index. Which nursing action is most important?
A. Administer the medication without laboratory monitoring
B. Monitor the client for therapeutic and toxic effects
C. Double the dose if the initial response is inadequate
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
, D. Administer the medication only when symptoms become severe
Correct Answer: B. Monitor the client for therapeutic and
toxic effects**
Rationale:
Drugs with a narrow therapeutic index have a small difference between effective
and toxic concentrations. Close monitoring of clinical response and, when
appropriate, serum drug levels helps prevent toxicity while maintaining
therapeutic effectiveness.
Why the other options are incorrect:
A: Lack of monitoring increases the risk of undetected toxicity.
C: Increasing the dose without assessment can produce toxic concentrations.
D: These medications are generally administered according to the prescribed schedule
rather than only when symptoms become severe.
---
Question 3
A nurse discovers that a medication was
administered to the wrong client. What should the nurse do first?
A. Complete the incident report
B. Notify the nurse manager
C. Assess the client
D. Document the error in the medical record
Correct Answer: C. Assess the client
Rationale:
After a medication error, the immediate priority is determining whether the
client has been harmed or is at risk of harm. The nurse should assess the
client, obtain appropriate vital signs and clinical information, and then
notify the appropriate healthcare provider and follow institutional
medication-error procedures.
Why the other options are incorrect:
A: Incident reporting is important but should not precede immediate client assessment.
B: Notification may be necessary, but assessment comes first.
D: Documentation is required, but immediate clinical evaluation takes priority.
---
Question 4
A client asks why a medication prescribed once
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
, daily should be taken at approximately the same time every day. Which response
is most appropriate?
A. "It prevents every possible adverse effect."
B. "It helps maintain a relatively consistent drug concentration."
C. "It guarantees that the medication will cure the condition."
D. "It eliminates the need for laboratory monitoring."
Correct Answer: B. "It helps maintain a relatively
consistent drug concentration."**
Rationale:
Consistent administration intervals help maintain therapeutic drug
concentrations and reduce excessive fluctuations between peak and trough
levels.
Why the other options are incorrect:
A: Adverse effects can still occur despite consistent administration.
C: Timing does not guarantee a cure.
D: Some medications still require laboratory monitoring regardless of administration
consistency.
---
Question 5
Which client statement demonstrates correct
understanding of medication reconciliation?
A. "I only need to report prescription medications."
B. "I should include prescription drugs, over-the-counter medications, vitamins, and
herbal products."
C. "I can stop listing medications once I leave the hospital."
D. "Herbal products do not interact with prescription medications."
Correct Answer: B. "I should include prescription
drugs, over-the-counter medications, vitamins, and herbal products."**
Rationale:
Medication reconciliation requires an accurate and complete medication list.
Nonprescription products and supplements can interact with prescribed
medications and therefore must be included.
Why the other options are incorrect:
A: OTC medications and supplements can have significant effects and interactions.
C: Medication reconciliation should continue whenever medications are changed or care
transitions occur.
Pharmacology for Nurses Practice Exam 2026–2027 | Nursing Practice Review
