Medication Safety and Autonomic
Pharmacology Practice Exam questions and
correct answers– Updated 2026 (Graded A+)
instant download pdf
Subject: Pharmacology and Medication Safety
Subtopic: Medication Safety and Adverse Drug Reactions
Question 1:
A nurse administers a medication to the wrong patient because two patients have similar names.
Which category of medication error has occurred?
A) Prescribing error
B) Dispensing error
C) Administration error
D) Monitoring error
Correct Answer: C - Administration error
Rationale: Administration errors occur during the process of giving medications to patients. In
this scenario, the medication was administered to the wrong patient. Prescribing errors
originate from the provider, dispensing errors occur in pharmacy preparation, and monitoring
errors involve failure to evaluate therapeutic or adverse effects.
Question 2:
A patient develops urticaria, wheezing, and hypotension shortly after receiving an antibiotic.
Which type of adverse drug reaction is most likely?
A) Side effect
B) Toxic effect
C) Allergic reaction
D) Idiosyncratic reaction
Correct Answer: C - Allergic reaction
Rationale: The presence of urticaria, bronchospasm, and hypotension suggests an allergic
hypersensitivity reaction. Toxic effects result from excessive drug levels, side effects are
,predictable secondary effects, and idiosyncratic reactions are unusual and genetically
determined responses.
Question 3:
A nurse identifies a potential medication error before the medication reaches the patient. This
event is classified as:
A) Sentinel event
B) Near miss
C) Adverse event
D) Medication toxicity
Correct Answer: B - Near miss
Rationale: A near miss occurs when an error is detected before reaching the patient. Adverse
events involve patient harm, whereas sentinel events involve serious injury or death.
Question 4:
Which action best reduces medication administration errors?
A) Relying on memory
B) Performing independent double-checks
C) Administering medications quickly
D) Delegating medication administration indiscriminately
Correct Answer: B - Performing independent double-checks
Rationale: Independent verification significantly reduces medication errors. Rushing, relying on
memory, and inappropriate delegation increase risk.
Question 5:
A patient experiences severe hypotension after receiving a standard dose of medication due to a
genetic variation affecting drug metabolism. This reaction is classified as:
A) Allergic reaction
B) Toxic reaction
,C) Idiosyncratic reaction
D) Side effect
Correct Answer: C - Idiosyncratic reaction
Rationale: Idiosyncratic reactions are unusual, genetically mediated responses that differ from
expected pharmacologic effects.
Subtopic: Medication Errors
Question 6:
Which factor contributes most significantly to medication errors?
A) Adequate staffing
B) Effective communication
C) Similar drug names
D) Clinical guidelines
Correct Answer: C - Similar drug names
Rationale: Look-alike and sound-alike medications are a major source of medication errors.
Effective communication and adequate staffing generally reduce error rates.
Question 7:
A nurse administers a medication despite an unclear prescription. Which safety principle has
been violated?
A) Patient autonomy
B) Clarification of incomplete orders
C) Therapeutic communication
D) Delegation principles
Correct Answer: B - Clarification of incomplete orders
Rationale: Unclear or incomplete prescriptions must be clarified before administration to ensure
patient safety.
, Question 8:
Which patient is at highest risk for adverse drug events?
A) Healthy adolescent taking one medication
B) Older adult taking multiple medications
C) Middle-aged athlete
D) Patient receiving short-term therapy
Correct Answer: B - Older adult taking multiple medications
Rationale: Polypharmacy and physiologic changes increase the risk of adverse drug reactions
among older adults.
Question 9:
The primary purpose of medication reconciliation is to:
A) Increase drug therapy
B) Identify discrepancies in medications
C) Reduce nursing workload
D) Eliminate patient involvement
Correct Answer: B - Identify discrepancies in medications
Rationale: Medication reconciliation helps prevent omissions, duplications, and interactions
during transitions of care.
Question 10:
A patient receives twice the prescribed dose because of a misplaced decimal point. This error is
best classified as:
A) Monitoring error
B) Calculation error
C) Documentation error
D) Compliance error
Correct Answer: B - Calculation error
Rationale: Decimal point errors frequently lead to dosage miscalculations and potentially
serious adverse outcomes.
Pharmacology Practice Exam questions and
correct answers– Updated 2026 (Graded A+)
instant download pdf
Subject: Pharmacology and Medication Safety
Subtopic: Medication Safety and Adverse Drug Reactions
Question 1:
A nurse administers a medication to the wrong patient because two patients have similar names.
Which category of medication error has occurred?
A) Prescribing error
B) Dispensing error
C) Administration error
D) Monitoring error
Correct Answer: C - Administration error
Rationale: Administration errors occur during the process of giving medications to patients. In
this scenario, the medication was administered to the wrong patient. Prescribing errors
originate from the provider, dispensing errors occur in pharmacy preparation, and monitoring
errors involve failure to evaluate therapeutic or adverse effects.
Question 2:
A patient develops urticaria, wheezing, and hypotension shortly after receiving an antibiotic.
Which type of adverse drug reaction is most likely?
A) Side effect
B) Toxic effect
C) Allergic reaction
D) Idiosyncratic reaction
Correct Answer: C - Allergic reaction
Rationale: The presence of urticaria, bronchospasm, and hypotension suggests an allergic
hypersensitivity reaction. Toxic effects result from excessive drug levels, side effects are
,predictable secondary effects, and idiosyncratic reactions are unusual and genetically
determined responses.
Question 3:
A nurse identifies a potential medication error before the medication reaches the patient. This
event is classified as:
A) Sentinel event
B) Near miss
C) Adverse event
D) Medication toxicity
Correct Answer: B - Near miss
Rationale: A near miss occurs when an error is detected before reaching the patient. Adverse
events involve patient harm, whereas sentinel events involve serious injury or death.
Question 4:
Which action best reduces medication administration errors?
A) Relying on memory
B) Performing independent double-checks
C) Administering medications quickly
D) Delegating medication administration indiscriminately
Correct Answer: B - Performing independent double-checks
Rationale: Independent verification significantly reduces medication errors. Rushing, relying on
memory, and inappropriate delegation increase risk.
Question 5:
A patient experiences severe hypotension after receiving a standard dose of medication due to a
genetic variation affecting drug metabolism. This reaction is classified as:
A) Allergic reaction
B) Toxic reaction
,C) Idiosyncratic reaction
D) Side effect
Correct Answer: C - Idiosyncratic reaction
Rationale: Idiosyncratic reactions are unusual, genetically mediated responses that differ from
expected pharmacologic effects.
Subtopic: Medication Errors
Question 6:
Which factor contributes most significantly to medication errors?
A) Adequate staffing
B) Effective communication
C) Similar drug names
D) Clinical guidelines
Correct Answer: C - Similar drug names
Rationale: Look-alike and sound-alike medications are a major source of medication errors.
Effective communication and adequate staffing generally reduce error rates.
Question 7:
A nurse administers a medication despite an unclear prescription. Which safety principle has
been violated?
A) Patient autonomy
B) Clarification of incomplete orders
C) Therapeutic communication
D) Delegation principles
Correct Answer: B - Clarification of incomplete orders
Rationale: Unclear or incomplete prescriptions must be clarified before administration to ensure
patient safety.
, Question 8:
Which patient is at highest risk for adverse drug events?
A) Healthy adolescent taking one medication
B) Older adult taking multiple medications
C) Middle-aged athlete
D) Patient receiving short-term therapy
Correct Answer: B - Older adult taking multiple medications
Rationale: Polypharmacy and physiologic changes increase the risk of adverse drug reactions
among older adults.
Question 9:
The primary purpose of medication reconciliation is to:
A) Increase drug therapy
B) Identify discrepancies in medications
C) Reduce nursing workload
D) Eliminate patient involvement
Correct Answer: B - Identify discrepancies in medications
Rationale: Medication reconciliation helps prevent omissions, duplications, and interactions
during transitions of care.
Question 10:
A patient receives twice the prescribed dose because of a misplaced decimal point. This error is
best classified as:
A) Monitoring error
B) Calculation error
C) Documentation error
D) Compliance error
Correct Answer: B - Calculation error
Rationale: Decimal point errors frequently lead to dosage miscalculations and potentially
serious adverse outcomes.
