ATI Pharmacology Made Easy Study Guide |
15 NCLEX-RN NGN Practice Questions with
Detailed Rationales |
Medication Safety, Clinical Judgment & Drug
Interactions
Question 1
Clinical Scenario
A 72-year-old man is admitted with community-acquired
pneumonia. His medical history includes hypertension, chronic
kidney disease (stage 3), and osteoarthritis. The provider
prescribes gentamicin IV. Before administering the first dose,
the nurse reviews the patient's laboratory results:
• Serum creatinine: 2.0 mg/dL
• BUN: 38 mg/dL
• Temperature: 38.7°C (101.7°F)
• Blood pressure: 136/78 mm Hg
, • Heart rate: 96/min
Question Stem
Which nursing action is the priority before administering the
medication?
A. Administer the medication as prescribed because infection
treatment should not be delayed.
B. Request a baseline hearing assessment after the first dose.
C. Notify the provider about the patient's renal function before
administering the medication.
D. Encourage increased dietary protein intake before
administration.
Correct Answer
Correct Answer: C. Notify the provider about the patient's
renal function before administering the medication.
Detailed Rationale
Gentamicin is an aminoglycoside antibiotic that is primarily
eliminated unchanged by the kidneys. Reduced renal function
significantly decreases drug clearance, increasing the risk of
accumulation and serious toxicities, including nephrotoxicity
and irreversible ototoxicity. Because this patient already has
stage 3 chronic kidney disease and elevated serum creatinine
and BUN levels, the nurse should question the order and notify
,the provider before administering the first dose. Dosage
adjustments or alternative antibiotics may be necessary.
Option A is incorrect because prompt treatment of infection is
important, but medication safety takes priority when significant
contraindications or dosage concerns exist.
Option B is partially appropriate because baseline hearing
assessment is recommended for prolonged aminoglycoside
therapy. However, verifying the safety of administering the
medication with impaired renal function is the priority.
Option D is incorrect because dietary protein intake does not
reduce aminoglycoside toxicity or improve drug clearance.
This scenario highlights the importance of understanding
pharmacokinetics. Drugs eliminated primarily by the kidneys
require dosage adjustment when renal function declines.
Nurses play a critical role in preventing medication-related
harm by recognizing laboratory abnormalities before
medication administration.
Learning Objectives
After completing this question, the learner should be able to:
• Recognize the effect of renal impairment on medication
clearance.
• Prioritize nursing interventions before administering
nephrotoxic medications.
, • Identify situations requiring provider notification before
medication administration.
• Apply pharmacokinetic principles to medication safety.
Medication Safety Focus
Monitoring
Question 2
Clinical Scenario
A nurse is teaching a newly licensed nurse about
pharmacodynamics before medication administration.
Question Stem
Which statement best describes pharmacodynamics?
A. The movement of medications through absorption,
distribution, metabolism, and excretion.
B. The study of how medications affect the body to produce
therapeutic and adverse effects.
C. The process by which the kidneys eliminate medications.
D. The calculation of medication half-life.
Correct Answer
15 NCLEX-RN NGN Practice Questions with
Detailed Rationales |
Medication Safety, Clinical Judgment & Drug
Interactions
Question 1
Clinical Scenario
A 72-year-old man is admitted with community-acquired
pneumonia. His medical history includes hypertension, chronic
kidney disease (stage 3), and osteoarthritis. The provider
prescribes gentamicin IV. Before administering the first dose,
the nurse reviews the patient's laboratory results:
• Serum creatinine: 2.0 mg/dL
• BUN: 38 mg/dL
• Temperature: 38.7°C (101.7°F)
• Blood pressure: 136/78 mm Hg
, • Heart rate: 96/min
Question Stem
Which nursing action is the priority before administering the
medication?
A. Administer the medication as prescribed because infection
treatment should not be delayed.
B. Request a baseline hearing assessment after the first dose.
C. Notify the provider about the patient's renal function before
administering the medication.
D. Encourage increased dietary protein intake before
administration.
Correct Answer
Correct Answer: C. Notify the provider about the patient's
renal function before administering the medication.
Detailed Rationale
Gentamicin is an aminoglycoside antibiotic that is primarily
eliminated unchanged by the kidneys. Reduced renal function
significantly decreases drug clearance, increasing the risk of
accumulation and serious toxicities, including nephrotoxicity
and irreversible ototoxicity. Because this patient already has
stage 3 chronic kidney disease and elevated serum creatinine
and BUN levels, the nurse should question the order and notify
,the provider before administering the first dose. Dosage
adjustments or alternative antibiotics may be necessary.
Option A is incorrect because prompt treatment of infection is
important, but medication safety takes priority when significant
contraindications or dosage concerns exist.
Option B is partially appropriate because baseline hearing
assessment is recommended for prolonged aminoglycoside
therapy. However, verifying the safety of administering the
medication with impaired renal function is the priority.
Option D is incorrect because dietary protein intake does not
reduce aminoglycoside toxicity or improve drug clearance.
This scenario highlights the importance of understanding
pharmacokinetics. Drugs eliminated primarily by the kidneys
require dosage adjustment when renal function declines.
Nurses play a critical role in preventing medication-related
harm by recognizing laboratory abnormalities before
medication administration.
Learning Objectives
After completing this question, the learner should be able to:
• Recognize the effect of renal impairment on medication
clearance.
• Prioritize nursing interventions before administering
nephrotoxic medications.
, • Identify situations requiring provider notification before
medication administration.
• Apply pharmacokinetic principles to medication safety.
Medication Safety Focus
Monitoring
Question 2
Clinical Scenario
A nurse is teaching a newly licensed nurse about
pharmacodynamics before medication administration.
Question Stem
Which statement best describes pharmacodynamics?
A. The movement of medications through absorption,
distribution, metabolism, and excretion.
B. The study of how medications affect the body to produce
therapeutic and adverse effects.
C. The process by which the kidneys eliminate medications.
D. The calculation of medication half-life.
Correct Answer
