CERTIFIED PEDIATRIC NURSE (CPN) EXAM PREP MASTERCLASS
2026
100 HIGH-YIELD PEDIATRIC NURSING PRACTICE QUESTIONS WITH
DETAILED ANSWERS, CLINICAL RATIONALES, PRIORITY NURSING
INTERVENTIONS, DEVELOPMENTAL CONCEPTS, PHARMACOLOGY
REVIEW, AND EVIDENCE-BASED PEDIATRIC CARE FOR
CERTIFICATION EXAM SUCCESS
A 2-year-old child is admitted with severe dehydration secondary to acute gastroenteritis. Which
assessment finding requires the nurse’s immediate intervention?
A. Dry mucous membranes
B. Capillary refill of 4 seconds
C. Heart rate of 118 beats/minute
D. Decreased urine output for 6 hours
Correct Answer:
B. Capillary refill of 4 seconds
Rationale:
A capillary refill greater than 3 seconds indicates poor peripheral perfusion and possible
circulatory compromise. In pediatric patients, delayed capillary refill is a significant sign of
worsening dehydration and potential hypovolemic shock. Immediate intervention is required to
restore circulating volume and prevent cardiovascular collapse.
• Option A: Dry mucous membranes are common in dehydration but are not as
immediately life-threatening as poor perfusion.
, • Option C: A heart rate of 118 beats/minute may be within the upper range of normal for
a toddler depending on activity and fever.
• Option D: Decreased urine output is concerning and consistent with dehydration, but
delayed capillary refill indicates more urgent circulatory instability.
The nurse should prioritize rapid fluid replacement, continuous monitoring, and reassessment
of perfusion status.
Question 2
A pediatric nurse is caring for a 6-year-old child diagnosed with asthma. Which finding indicates
that the child’s condition is worsening?
A. Expiratory wheezing
B. Oxygen saturation of 97%
C. Diminished breath sounds
D. Mild anxiety
Correct Answer:
C. Diminished breath sounds
Rationale:
Diminished or absent breath sounds in a child with asthma may indicate severe airway
obstruction and poor air movement. This is a critical finding that may precede respiratory
failure.
• Option A: Wheezing is expected in asthma and may actually decrease when airflow
becomes critically limited.
• Option B: Oxygen saturation of 97% is normal.
• Option D: Mild anxiety is common during breathing difficulty but is less concerning than
diminished airflow.
Children experiencing severe asthma exacerbation may demonstrate fatigue, silent chest,
retractions, cyanosis, and altered mental status. Prompt intervention with bronchodilators,
oxygen, and possibly corticosteroids is required.
Question 3
,The nurse is teaching parents about febrile seizures. Which statement by the parents indicates
correct understanding?
A. “Febrile seizures usually cause permanent brain damage.”
B. “We should place objects in the child’s mouth during a seizure.”
C. “Most febrile seizures are brief and resolve without complications.”
D. “Children who have febrile seizures always develop epilepsy later in life.”
Correct Answer:
C. “Most febrile seizures are brief and resolve without complications.”
Rationale:
Febrile seizures are generally benign and commonly occur in children between 6 months and 5
years of age. Most are brief, self-limiting, and do not result in long-term neurological damage.
• Option A: Febrile seizures rarely cause permanent brain damage.
• Option B: Nothing should be placed in the child’s mouth during a seizure because it
increases the risk of aspiration and injury.
• Option D: Most children with febrile seizures do not develop epilepsy.
Parent education should include seizure safety, fever management, and instructions on when to
seek emergency care.
Question 4
A child with type 1 diabetes mellitus becomes pale, shaky, and diaphoretic during physical
activity at school. What is the nurse’s priority action?
A. Administer insulin
B. Encourage exercise continuation
C. Check blood glucose and provide a fast-acting carbohydrate
D. Restrict oral intake
Correct Answer:
C. Check blood glucose and provide a fast-acting carbohydrate
Rationale:
, The child is demonstrating classic symptoms of hypoglycemia. Immediate assessment of blood
glucose followed by administration of a rapid-acting carbohydrate such as juice or glucose
tablets is the priority.
• Option A: Insulin would worsen hypoglycemia.
• Option B: Continuing exercise may further lower glucose levels.
• Option D: Restricting intake is inappropriate.
Untreated hypoglycemia may progress to seizures, loss of consciousness, or coma.
Question 5
Which intervention is most appropriate when caring for a hospitalized toddler?
A. Encourage independence and offer choices
B. Provide lengthy explanations before procedures
C. Assign multiple caregivers to promote socialization
D. Avoid parental involvement during hospitalization
Correct Answer:
A. Encourage independence and offer choices
Rationale:
Toddlers are in Erikson’s stage of autonomy versus shame and doubt. They benefit from
opportunities to make simple choices and maintain independence.
• Option B: Toddlers have limited attention spans and may not understand lengthy
explanations.
• Option C: Consistency in caregivers reduces anxiety.
• Option D: Parental involvement is essential for emotional security.
Age-appropriate care promotes trust, cooperation, and developmental support.
Question 6
A newborn is diagnosed with tetralogy of Fallot. During a cyanotic spell, what is the nurse’s
priority intervention?
2026
100 HIGH-YIELD PEDIATRIC NURSING PRACTICE QUESTIONS WITH
DETAILED ANSWERS, CLINICAL RATIONALES, PRIORITY NURSING
INTERVENTIONS, DEVELOPMENTAL CONCEPTS, PHARMACOLOGY
REVIEW, AND EVIDENCE-BASED PEDIATRIC CARE FOR
CERTIFICATION EXAM SUCCESS
A 2-year-old child is admitted with severe dehydration secondary to acute gastroenteritis. Which
assessment finding requires the nurse’s immediate intervention?
A. Dry mucous membranes
B. Capillary refill of 4 seconds
C. Heart rate of 118 beats/minute
D. Decreased urine output for 6 hours
Correct Answer:
B. Capillary refill of 4 seconds
Rationale:
A capillary refill greater than 3 seconds indicates poor peripheral perfusion and possible
circulatory compromise. In pediatric patients, delayed capillary refill is a significant sign of
worsening dehydration and potential hypovolemic shock. Immediate intervention is required to
restore circulating volume and prevent cardiovascular collapse.
• Option A: Dry mucous membranes are common in dehydration but are not as
immediately life-threatening as poor perfusion.
, • Option C: A heart rate of 118 beats/minute may be within the upper range of normal for
a toddler depending on activity and fever.
• Option D: Decreased urine output is concerning and consistent with dehydration, but
delayed capillary refill indicates more urgent circulatory instability.
The nurse should prioritize rapid fluid replacement, continuous monitoring, and reassessment
of perfusion status.
Question 2
A pediatric nurse is caring for a 6-year-old child diagnosed with asthma. Which finding indicates
that the child’s condition is worsening?
A. Expiratory wheezing
B. Oxygen saturation of 97%
C. Diminished breath sounds
D. Mild anxiety
Correct Answer:
C. Diminished breath sounds
Rationale:
Diminished or absent breath sounds in a child with asthma may indicate severe airway
obstruction and poor air movement. This is a critical finding that may precede respiratory
failure.
• Option A: Wheezing is expected in asthma and may actually decrease when airflow
becomes critically limited.
• Option B: Oxygen saturation of 97% is normal.
• Option D: Mild anxiety is common during breathing difficulty but is less concerning than
diminished airflow.
Children experiencing severe asthma exacerbation may demonstrate fatigue, silent chest,
retractions, cyanosis, and altered mental status. Prompt intervention with bronchodilators,
oxygen, and possibly corticosteroids is required.
Question 3
,The nurse is teaching parents about febrile seizures. Which statement by the parents indicates
correct understanding?
A. “Febrile seizures usually cause permanent brain damage.”
B. “We should place objects in the child’s mouth during a seizure.”
C. “Most febrile seizures are brief and resolve without complications.”
D. “Children who have febrile seizures always develop epilepsy later in life.”
Correct Answer:
C. “Most febrile seizures are brief and resolve without complications.”
Rationale:
Febrile seizures are generally benign and commonly occur in children between 6 months and 5
years of age. Most are brief, self-limiting, and do not result in long-term neurological damage.
• Option A: Febrile seizures rarely cause permanent brain damage.
• Option B: Nothing should be placed in the child’s mouth during a seizure because it
increases the risk of aspiration and injury.
• Option D: Most children with febrile seizures do not develop epilepsy.
Parent education should include seizure safety, fever management, and instructions on when to
seek emergency care.
Question 4
A child with type 1 diabetes mellitus becomes pale, shaky, and diaphoretic during physical
activity at school. What is the nurse’s priority action?
A. Administer insulin
B. Encourage exercise continuation
C. Check blood glucose and provide a fast-acting carbohydrate
D. Restrict oral intake
Correct Answer:
C. Check blood glucose and provide a fast-acting carbohydrate
Rationale:
, The child is demonstrating classic symptoms of hypoglycemia. Immediate assessment of blood
glucose followed by administration of a rapid-acting carbohydrate such as juice or glucose
tablets is the priority.
• Option A: Insulin would worsen hypoglycemia.
• Option B: Continuing exercise may further lower glucose levels.
• Option D: Restricting intake is inappropriate.
Untreated hypoglycemia may progress to seizures, loss of consciousness, or coma.
Question 5
Which intervention is most appropriate when caring for a hospitalized toddler?
A. Encourage independence and offer choices
B. Provide lengthy explanations before procedures
C. Assign multiple caregivers to promote socialization
D. Avoid parental involvement during hospitalization
Correct Answer:
A. Encourage independence and offer choices
Rationale:
Toddlers are in Erikson’s stage of autonomy versus shame and doubt. They benefit from
opportunities to make simple choices and maintain independence.
• Option B: Toddlers have limited attention spans and may not understand lengthy
explanations.
• Option C: Consistency in caregivers reduces anxiety.
• Option D: Parental involvement is essential for emotional security.
Age-appropriate care promotes trust, cooperation, and developmental support.
Question 6
A newborn is diagnosed with tetralogy of Fallot. During a cyanotic spell, what is the nurse’s
priority intervention?
