ATI Pharmacology Made Easy NCLEX-RN
Practice Questions |
Introduction to Pharmacology |
20 Original NCLEX-Style MCQs with
Rationales
Question 1
Clinical Scenario
A newly licensed nurse is preparing to administer several
medications on a medical-surgical unit. The nurse reviews the
medication administration record and verifies each prescription
with the original provider orders.
Question Stem
Which action best demonstrates adherence to a fundamental
principle of pharmacology and medication safety?
A. Administering medications as quickly as possible to avoid
delays
,B. Verifying the medication against the provider order before
administration
C. Asking another nurse to administer unfamiliar medications
D. Giving medications before assessing the client
Correct Answer
Correct Answer: B. Verifying the medication against the
provider order before administration
Detailed Rationale
Medication safety begins with accurate verification of the
medication order. Comparing the medication label with the
provider's prescription helps prevent wrong-drug, wrong-dose,
and wrong-patient errors. This process is part of the rights of
medication administration and is essential for safe nursing
practice.
Option A is incorrect because speed should never take priority
over safety. Option C is inappropriate because the administering
nurse remains accountable for medications given to their
clients. Option D is unsafe because assessment findings may
reveal contraindications or reasons to withhold a medication.
Pharmacology requires integration of assessment, verification,
administration, and evaluation. Nurses must evaluate allergies,
vital signs, laboratory results, and clinical status before
,administering medications. Failure to verify medications is a
common source of preventable medication errors.
Patient teaching should also occur before administration so the
client understands the purpose and expected effects of the
medication.
Learning Objective
After completing this question, the learner should be able to:
• Apply medication verification principles.
• Identify nursing responsibilities before medication
administration.
• Reduce medication administration errors.
Medication Safety Focus
Medication administration
Question 2
Clinical Scenario
A 78-year-old client with chronic kidney disease is prescribed a
medication that is primarily eliminated by the kidneys.
Laboratory results show a creatinine clearance significantly
below normal.
Question Stem
, Which pharmacokinetic change is most important for the nurse
to consider?
A. Increased drug metabolism
B. Increased drug absorption
C. Decreased drug excretion
D. Increased protein binding
Correct Answer
Correct Answer: C. Decreased drug excretion
Detailed Rationale
The kidneys play a major role in eliminating many medications.
Reduced renal function decreases drug excretion, allowing
medications and metabolites to accumulate in the body. This
increases the risk of toxicity and adverse effects.
Option A is incorrect because metabolism primarily occurs in
the liver. Option B is incorrect because renal disease does not
typically increase gastrointestinal absorption. Option D may
occur with some conditions but is not the primary
pharmacokinetic concern in kidney impairment.
Nurses should review renal function tests, monitor for toxicity,
and anticipate dose reductions or extended dosing intervals.
Drugs commonly requiring renal adjustment include
Practice Questions |
Introduction to Pharmacology |
20 Original NCLEX-Style MCQs with
Rationales
Question 1
Clinical Scenario
A newly licensed nurse is preparing to administer several
medications on a medical-surgical unit. The nurse reviews the
medication administration record and verifies each prescription
with the original provider orders.
Question Stem
Which action best demonstrates adherence to a fundamental
principle of pharmacology and medication safety?
A. Administering medications as quickly as possible to avoid
delays
,B. Verifying the medication against the provider order before
administration
C. Asking another nurse to administer unfamiliar medications
D. Giving medications before assessing the client
Correct Answer
Correct Answer: B. Verifying the medication against the
provider order before administration
Detailed Rationale
Medication safety begins with accurate verification of the
medication order. Comparing the medication label with the
provider's prescription helps prevent wrong-drug, wrong-dose,
and wrong-patient errors. This process is part of the rights of
medication administration and is essential for safe nursing
practice.
Option A is incorrect because speed should never take priority
over safety. Option C is inappropriate because the administering
nurse remains accountable for medications given to their
clients. Option D is unsafe because assessment findings may
reveal contraindications or reasons to withhold a medication.
Pharmacology requires integration of assessment, verification,
administration, and evaluation. Nurses must evaluate allergies,
vital signs, laboratory results, and clinical status before
,administering medications. Failure to verify medications is a
common source of preventable medication errors.
Patient teaching should also occur before administration so the
client understands the purpose and expected effects of the
medication.
Learning Objective
After completing this question, the learner should be able to:
• Apply medication verification principles.
• Identify nursing responsibilities before medication
administration.
• Reduce medication administration errors.
Medication Safety Focus
Medication administration
Question 2
Clinical Scenario
A 78-year-old client with chronic kidney disease is prescribed a
medication that is primarily eliminated by the kidneys.
Laboratory results show a creatinine clearance significantly
below normal.
Question Stem
, Which pharmacokinetic change is most important for the nurse
to consider?
A. Increased drug metabolism
B. Increased drug absorption
C. Decreased drug excretion
D. Increased protein binding
Correct Answer
Correct Answer: C. Decreased drug excretion
Detailed Rationale
The kidneys play a major role in eliminating many medications.
Reduced renal function decreases drug excretion, allowing
medications and metabolites to accumulate in the body. This
increases the risk of toxicity and adverse effects.
Option A is incorrect because metabolism primarily occurs in
the liver. Option B is incorrect because renal disease does not
typically increase gastrointestinal absorption. Option D may
occur with some conditions but is not the primary
pharmacokinetic concern in kidney impairment.
Nurses should review renal function tests, monitor for toxicity,
and anticipate dose reductions or extended dosing intervals.
Drugs commonly requiring renal adjustment include
