NCLEX Pharmacology Practice Questions (20
MCQs) |
Introduction to Pharmacology |
Medication Safety, Clinical Judgment, ATI &
NGN Style with Rationales
Question 1
Clinical Scenario
A nurse is preparing to administer medications to a 68-year-old
male with hypertension and chronic kidney disease. The nurse
reviews the medication administration record (MAR) and notes
several newly prescribed drugs.
Question Stem
Which action should the nurse take FIRST to ensure safe
medication administration?
A. Administer all medications as prescribed
B. Verify the patient’s identity using two identifiers
C. Check the patient’s allergy status
D. Review the patient’s renal function labs
Correct Answer
C. Check the patient’s allergy status
,Detailed Rationale
Checking the patient’s allergy status is a priority safety step
before administering any medication. Administering a drug to
which a patient is allergic can result in life-threatening reactions
such as anaphylaxis. While verifying identity (Option B) is
essential, confirming allergies is the first safety step to prevent
harm. Reviewing renal labs (Option D) is also important,
particularly for drug dosing, but it does not take precedence
over identifying potential allergies. Administering medications
without these checks (Option A) is unsafe practice.
Nurses must follow the “rights” of medication administration,
including the right patient, medication, dose, route, time, and
documentation, along with assessing allergies. This
foundational safety step prevents medication errors and
adverse drug reactions.
Learning Objective
After completing this question, the learner should be able to:
• Identify priority steps in safe medication administration
• Recognize the importance of allergy verification
• Apply clinical judgment in medication safety
Medication Safety Focus: Contraindication
Question 2
, Clinical Scenario
A nurse is educating a 45-year-old female about a newly
prescribed oral medication. The patient asks how the
medication will work in her body.
Question Stem
Which explanation by the nurse best describes
pharmacodynamics?
A. How the body absorbs and eliminates the drug
B. How the drug affects the body
C. How the drug is distributed in tissues
D. How the drug is metabolized in the liver
Correct Answer
B. How the drug affects the body
Detailed Rationale
Pharmacodynamics refers to how a drug affects the body,
including its mechanism of action, therapeutic effects, and
adverse effects. This includes receptor binding, dose-response
relationships, and physiological changes. Options A, C, and D
describe pharmacokinetics, which involves absorption,
distribution, metabolism, and excretion (ADME).
Understanding pharmacodynamics helps nurses anticipate
therapeutic outcomes and side effects, guiding monitoring and
MCQs) |
Introduction to Pharmacology |
Medication Safety, Clinical Judgment, ATI &
NGN Style with Rationales
Question 1
Clinical Scenario
A nurse is preparing to administer medications to a 68-year-old
male with hypertension and chronic kidney disease. The nurse
reviews the medication administration record (MAR) and notes
several newly prescribed drugs.
Question Stem
Which action should the nurse take FIRST to ensure safe
medication administration?
A. Administer all medications as prescribed
B. Verify the patient’s identity using two identifiers
C. Check the patient’s allergy status
D. Review the patient’s renal function labs
Correct Answer
C. Check the patient’s allergy status
,Detailed Rationale
Checking the patient’s allergy status is a priority safety step
before administering any medication. Administering a drug to
which a patient is allergic can result in life-threatening reactions
such as anaphylaxis. While verifying identity (Option B) is
essential, confirming allergies is the first safety step to prevent
harm. Reviewing renal labs (Option D) is also important,
particularly for drug dosing, but it does not take precedence
over identifying potential allergies. Administering medications
without these checks (Option A) is unsafe practice.
Nurses must follow the “rights” of medication administration,
including the right patient, medication, dose, route, time, and
documentation, along with assessing allergies. This
foundational safety step prevents medication errors and
adverse drug reactions.
Learning Objective
After completing this question, the learner should be able to:
• Identify priority steps in safe medication administration
• Recognize the importance of allergy verification
• Apply clinical judgment in medication safety
Medication Safety Focus: Contraindication
Question 2
, Clinical Scenario
A nurse is educating a 45-year-old female about a newly
prescribed oral medication. The patient asks how the
medication will work in her body.
Question Stem
Which explanation by the nurse best describes
pharmacodynamics?
A. How the body absorbs and eliminates the drug
B. How the drug affects the body
C. How the drug is distributed in tissues
D. How the drug is metabolized in the liver
Correct Answer
B. How the drug affects the body
Detailed Rationale
Pharmacodynamics refers to how a drug affects the body,
including its mechanism of action, therapeutic effects, and
adverse effects. This includes receptor binding, dose-response
relationships, and physiological changes. Options A, C, and D
describe pharmacokinetics, which involves absorption,
distribution, metabolism, and excretion (ADME).
Understanding pharmacodynamics helps nurses anticipate
therapeutic outcomes and side effects, guiding monitoring and
