1
NCLEX PN Exam Bank Pediatric
Medication Safety and Age Based
Adjustments
Table of Contents
Subtopic 1: Safe Medication Administration in Infants and Toddlers (0–3 Years) ................. 2
Subtopic 2: Pharmacologic Considerations in Preschool and School-Age Children (4–12
Years) ......................................................................................................................... 11
Subtopic 3: Adolescent Medication Use and Hormonal Therapies (13–18 Years) .............. 21
Subtopic 4: Age-Related Pharmacokinetics and Pharmacodynamics in Older Adults (65+
Years) ......................................................................................................................... 30
Subtopic 5: Adverse Effects and Drug Interactions in Antihypertensive and Diuretic Therapy
(Questions 81–100) ..................................................................................................... 40
Subtopic 6: Intravenous Fluid and Electrolyte Management in Pediatric and Geriatric
Patients ...................................................................................................................... 48
Subtopic 7: Pediatric Intravenous Therapy and Fluid Balance Monitoring......................... 55
Subtopic 8: Electrolyte Imbalances and Medication Effects in Vulnerable Populations ..... 63
Subtopic 9: Electrolyte Imbalances and Drug Interactions with Antihypertensives and
Diuretics .................................................................................................................... 71
Subtopic 10: Monitoring for Adverse Drug Reactions and Complications in Vulnerable
Populations ................................................................................................................ 80
, 2
Subtopic 1: Safe Medication Administration in Infants
and Toddlers (0–3 Years)
Question 1
A nurse is preparing to administer an oral antibiotic to a 10-month-old infant. What is the
best method for ensuring the infant receives the correct dose?
A. Mix the medication with a full bottle of formula
B. Administer the medication using a medication cup
C. Use an oral syringe to deliver the medication into the side of the mouth
D. Crush the medication and mix with baby cereal
Correct Answer: C
Rationale: An oral syringe provides precise dosing and allows the nurse to control
administration into the cheek pocket to reduce aspiration risk. Mixing with food or bottles
can result in incomplete dosing.
Question 2
Which pharmacokinetic factor is significantly altered in infants compared to adults,
affecting drug metabolism?
A. Faster renal excretion
B. Immature liver enzyme systems
C. Increased protein binding
D. Increased blood-brain barrier permeability
Correct Answer: B
, 3
Rationale: Infants have underdeveloped liver enzyme systems, affecting how they
metabolize medications. This requires careful dose adjustments to avoid toxicity.
Question 3
A 2-year-old child is prescribed a medication with a narrow therapeutic index. What action
should the nurse prioritize?
A. Assess the child's ability to swallow pills
B. Monitor drug levels and observe for signs of toxicity
C. Delay administration until the child is calm
D. Administer the adult dose with food
Correct Answer: B
Rationale: Medications with a narrow therapeutic index require close monitoring due to the
small margin between therapeutic and toxic levels.
Question 4
Which site is most appropriate for IM injection in a 6-month-old infant?
A. Deltoid muscle
B. Vastus lateralis muscle
C. Dorsogluteal muscle
D. Ventrogluteal muscle
Correct Answer: B
Rationale: The vastus lateralis is the preferred site for IM injections in infants due to its
muscle size and accessibility.
, 4
Question 5
When giving a liquid medication to a toddler who is resisting, what is the nurse’s best
response?
A. Force the mouth open and pour the medication
B. Mix the medication with honey
C. Use distraction techniques and praise cooperation
D. Skip the dose and try again later
Correct Answer: C
Rationale: Distraction, age-appropriate explanations, and praise promote positive
experiences and compliance without compromising safety.
Question 6
A 1-year-old child is prescribed acetaminophen. What is the nurse’s priority before
administration?
A. Confirm the child is not allergic
B. Verify the dose based on weight in kilograms
C. Ask the parent for the usual dose
D. Check the child’s height
Correct Answer: B
Rationale: Pediatric dosing is weight-based, usually calculated in mg/kg. Accurate weight
ensures correct dosing and prevents toxicity.
NCLEX PN Exam Bank Pediatric
Medication Safety and Age Based
Adjustments
Table of Contents
Subtopic 1: Safe Medication Administration in Infants and Toddlers (0–3 Years) ................. 2
Subtopic 2: Pharmacologic Considerations in Preschool and School-Age Children (4–12
Years) ......................................................................................................................... 11
Subtopic 3: Adolescent Medication Use and Hormonal Therapies (13–18 Years) .............. 21
Subtopic 4: Age-Related Pharmacokinetics and Pharmacodynamics in Older Adults (65+
Years) ......................................................................................................................... 30
Subtopic 5: Adverse Effects and Drug Interactions in Antihypertensive and Diuretic Therapy
(Questions 81–100) ..................................................................................................... 40
Subtopic 6: Intravenous Fluid and Electrolyte Management in Pediatric and Geriatric
Patients ...................................................................................................................... 48
Subtopic 7: Pediatric Intravenous Therapy and Fluid Balance Monitoring......................... 55
Subtopic 8: Electrolyte Imbalances and Medication Effects in Vulnerable Populations ..... 63
Subtopic 9: Electrolyte Imbalances and Drug Interactions with Antihypertensives and
Diuretics .................................................................................................................... 71
Subtopic 10: Monitoring for Adverse Drug Reactions and Complications in Vulnerable
Populations ................................................................................................................ 80
, 2
Subtopic 1: Safe Medication Administration in Infants
and Toddlers (0–3 Years)
Question 1
A nurse is preparing to administer an oral antibiotic to a 10-month-old infant. What is the
best method for ensuring the infant receives the correct dose?
A. Mix the medication with a full bottle of formula
B. Administer the medication using a medication cup
C. Use an oral syringe to deliver the medication into the side of the mouth
D. Crush the medication and mix with baby cereal
Correct Answer: C
Rationale: An oral syringe provides precise dosing and allows the nurse to control
administration into the cheek pocket to reduce aspiration risk. Mixing with food or bottles
can result in incomplete dosing.
Question 2
Which pharmacokinetic factor is significantly altered in infants compared to adults,
affecting drug metabolism?
A. Faster renal excretion
B. Immature liver enzyme systems
C. Increased protein binding
D. Increased blood-brain barrier permeability
Correct Answer: B
, 3
Rationale: Infants have underdeveloped liver enzyme systems, affecting how they
metabolize medications. This requires careful dose adjustments to avoid toxicity.
Question 3
A 2-year-old child is prescribed a medication with a narrow therapeutic index. What action
should the nurse prioritize?
A. Assess the child's ability to swallow pills
B. Monitor drug levels and observe for signs of toxicity
C. Delay administration until the child is calm
D. Administer the adult dose with food
Correct Answer: B
Rationale: Medications with a narrow therapeutic index require close monitoring due to the
small margin between therapeutic and toxic levels.
Question 4
Which site is most appropriate for IM injection in a 6-month-old infant?
A. Deltoid muscle
B. Vastus lateralis muscle
C. Dorsogluteal muscle
D. Ventrogluteal muscle
Correct Answer: B
Rationale: The vastus lateralis is the preferred site for IM injections in infants due to its
muscle size and accessibility.
, 4
Question 5
When giving a liquid medication to a toddler who is resisting, what is the nurse’s best
response?
A. Force the mouth open and pour the medication
B. Mix the medication with honey
C. Use distraction techniques and praise cooperation
D. Skip the dose and try again later
Correct Answer: C
Rationale: Distraction, age-appropriate explanations, and praise promote positive
experiences and compliance without compromising safety.
Question 6
A 1-year-old child is prescribed acetaminophen. What is the nurse’s priority before
administration?
A. Confirm the child is not allergic
B. Verify the dose based on weight in kilograms
C. Ask the parent for the usual dose
D. Check the child’s height
Correct Answer: B
Rationale: Pediatric dosing is weight-based, usually calculated in mg/kg. Accurate weight
ensures correct dosing and prevents toxicity.
