Pediatric primary care requires you to track rapid developmental changes and adhere to strict preventive schedules. You must know when to intervene and when to reassure parents about normal variants. The items below test your ability to assess growth, diagnose common childhood illnesses, and plan appropriate interventions.
Question 1
132 of 150. A 9-year-old boy requires pharmacotherapy for severe ADHD. Before starting lisdexamfetamine, the mother mentions the child's paternal uncle died suddenly at age 22 during a basketball game. Physical examination is unremarkable. What is the most appropriate action?
- A) Order a baseline electrocardiogram prior to prescribing.✓
- B) Initiate lisdexamfetamine and monitor heart rate weekly.
- C) Prescribe guanfacine instead to avoid cardiac complications.
- D) Request an echocardiogram following one month of treatment.
💡 Key Takeaway
A family history of sudden cardiac death requires an ECG before initiating any ADHD medication.
Show rationale
A family history of sudden unexplained cardiac death in a young relative is a major red flag before starting any stimulant medication. An electrocardiogram and potential pediatric cardiology clearance are strictly required prior to initiation. Initiating the stimulant and monitoring the heart rate (option B) or waiting a month for an echocardiogram (option D) is dangerous and violates safety guidelines. Guanfacine (option C) is an alpha-2 agonist that also affects cardiac conduction and would similarly require careful cardiovascular evaluation before use. Ensuring structural and electrical cardiac safety is paramount before prescribing these agents.
Question 2
145 of 150. During a well-child visit, a 4-year-old girl is unable to hop on one foot or balance for two seconds. She speaks in full sentences and easily copies a cross. The parents report she frequently trips.
- A) Reassure the parents that gross motor skills develop variably.
- B) Advise the parents to enroll the child in gymnastics.
- C) Refer the child for a pediatric physical therapy evaluation.✓
- D) Refer the child for a pediatric occupational therapy evaluation.
💡 Key Takeaway
Inability to hop or balance on one foot at four years indicates a gross motor delay.
Show rationale
By four years of age, a child should be able to hop on one foot and balance on one foot for at least two seconds. The inability to perform these tasks, combined with frequent tripping, strongly suggests a gross motor delay requiring professional intervention. Option A is incorrect because reassurance delays necessary intervention for a clear milestone failure. Option B is incorrect because gymnastics is a recreational activity, not a targeted clinical therapy for a diagnosed motor deficit. Option D is incorrect because occupational therapy primarily addresses fine motor skills and activities of daily living, whereas physical therapy focuses on gross motor coordination and strength.
Question 3
4 of 150. An 8-year-old child is four weeks into alarm therapy for monosymptomatic nocturnal enuresis. The parents report the child still wets the bed, but now wakes up to the alarm and the wet spots are smaller. They are frustrated and ask to change treatments. What is the most appropriate response?
- A) Stop the alarm and initiate daily oral desmopressin.
- B) Reassure parents these are early signs of success.✓
- C) Add an anticholinergic medication to the current regimen.
- D) Advise strict fluid restriction four hours before bedtime.
💡 Key Takeaway
Waking to the alarm and smaller wet patches indicate early effectiveness of enuresis alarm therapy.
Show rationale
Evaluating the effectiveness of alarm therapy requires understanding the conditioning process. At four weeks, waking to the alarm and having smaller wet patches are classic early signs of effectiveness. Reassuring the parents encourages adherence, which is critical since full success often takes three to four months. Option A is incorrect because stopping the alarm now abandons a working therapy prematurely. Option C is incorrect as anticholinergics are reserved for daytime incontinence or overactive bladder, not monosymptomatic enuresis. Option D is incorrect because strict fluid restriction is punitive and not evidence-based; normal fluid intake should be encouraged during the day.
Question 4
5 of 150. A 6-month-old male presents for a well-child visit. His head circumference has consistently tracked at the 98th percentile since birth, while weight and length are at the 50th percentile. He is meeting all developmental milestones. What subjective information is most critical to obtain?
- A) Parental head circumference measurement history✓
- B) Maternal gestational diabetes screening results
- C) Frequency of daily wet diaper output
- D) Exact volume of daily formula intake
💡 Key Takeaway
Benign familial macrocephaly is assessed by comparing an infant's large head circumference to parental head measurements.
Show rationale
Benign familial macrocephaly is a common, non-pathological condition suspected when an infant's head circumference tracks consistently high but remains parallel to the normal growth curve. Checking parental head size is the best subjective assessment to confirm this familial trait. Option B is incorrect because maternal gestational diabetes typically results in overall fetal macrosomia, not an isolated large head circumference. Options C and D are useful for assessing general nutrition and hydration status, which would be relevant if the infant had faltering weight or signs of dehydration. However, since this infant has normal weight and length percentiles alongside appropriate developmental progress, an isolated large head points toward benign familial macrocephaly, making parental measurements the priority.
Question 5
10 of 150. A 7-year-old child's asthma action plan indicates they are in the yellow zone due to a daytime cough and a peak flow reading of 65% of their personal best. Which intervention should the nurse practitioner instruct the parents to implement?
- A) Administer short-acting bronchodilator and start oral systemic corticosteroids.
- B) Administer short-acting bronchodilator and proceed to the emergency department.
- C) Administer short-acting bronchodilator and double the daily inhaled corticosteroid.
- D) Administer short-acting bronchodilator and reassess symptoms in one hour.✓
💡 Key Takeaway
Initial yellow zone management involves administering a short-acting bronchodilator and reassessing the clinical response shortly after.
Show rationale
The yellow zone indicates an acute exacerbation or loss of control, typically defined by a peak flow reading of 65% (which falls in the 50-79% range of personal best). The standard initial intervention is to administer a short-acting bronchodilator (albuterol) and reassess the child's response in one hour to determine if further step-up therapy is needed. Option A is incorrect because oral systemic corticosteroids are usually reserved for the red zone or if the child fails to improve after initial yellow zone interventions. Option B is incorrect as emergency care is indicated for the red zone (peak flow <50%) or a lack of response to rescue medications. Option C is incorrect because doubling the dose of inhaled corticosteroids is no longer routinely recommended for acute yellow zone management in children without specific specialist guidance.
Question 6
22 of 150. The FNP evaluates a newborn at five minutes of life. The infant has a heart rate of 118 bpm, active spontaneous movement, vigorous crying, pulls away during tactile stimulation, and exhibits persistent acrocyanosis. Which assessment score is most accurate?
- A) Assign an APGAR score of nine.✓
- B) Assign an APGAR score of eight.
- C) Assign an APGAR score of ten.
- D) Assign an APGAR score of seven.
💡 Key Takeaway
Acrocyanosis is a normal finding that deducts one point on the APGAR score.
Show rationale
The correct APGAR score is nine because the infant loses a single point for persistent acrocyanosis (color), while scoring full points for a heart rate above 100, active tone, vigorous respiratory effort, and a strong reflex response. A perfect score of ten requires a completely pink body, which is rare. Scores of eight or seven inaccurately underestimate the infant's robust cardiovascular and reflex status.
Question 7
48 of 150. An 11-month-old infant returns for reevaluation. This is the child's fourth episode of acute otitis media in twelve months, with the most recent episode occurring three weeks ago. The tympanic membranes currently demonstrate persistent bilateral effusion.
- A) Refer the infant to an otolaryngologist✓
- B) Switch to a broader-spectrum antibiotic
- C) Obtain a middle ear fluid culture
- D) Schedule a follow-up in four weeks
💡 Key Takeaway
Recurrent acute otitis media meeting specific frequency criteria warrants a specialist referral for tympanostomy tubes.
Show rationale
This infant meets the classic criteria for recurrent acute otitis media, defined as three distinct episodes in six months or four episodes in twelve months with at least one in the past six months. Because the child meets this threshold and has persistent effusion, an otolaryngologist referral for potential tympanostomy tube placement is the most appropriate modification to the plan of care. Option B is incorrect because the acute infection has resolved; treating the residual effusion with broader antibiotics is ineffective. Option C is an invasive procedure not routinely performed in primary care for this scenario. Option D inappropriately delays specialist evaluation for a child who already meets the criteria for surgical consultation.
Question 8
61 of 150. A 6-week-old female infant, born via breech presentation, demonstrates a positive Ortolani maneuver during a well-child visit. Which of the following is the most appropriate diagnostic imaging modality to order next?
- A) Anteroposterior radiograph of the pelvis
- B) Magnetic resonance imaging of the hips
- C) Computed tomography scan of the pelvis
- D) Bilateral ultrasound of the hip joints✓
💡 Key Takeaway
Ultrasound is the preferred imaging modality for evaluating hip dysplasia in infants under four months.
Show rationale
The correct answer is D because a bilateral ultrasound is the gold standard imaging modality for evaluating developmental dysplasia of the hip in infants under four to six months of age. At this stage, the femoral head is primarily composed of unossified cartilage, which is easily visualized with ultrasound. Option A is incorrect because an anteroposterior radiograph is not reliable until the femoral head begins to ossify, typically around four to six months of age. Options B and C are incorrect because magnetic resonance imaging and computed tomography are expensive, often require sedation, expose the infant to unnecessary radiation in the case of CT, and are not first-line diagnostic tools for routine evaluation of infant hip instability in the primary care setting.
Question 9
63 of 150. A 2-year-old presents for a well-child check. The parent reports the child had a febrile illness with a mild rash four weeks ago, and now exhibits painless proximal nail shedding on multiple digits.
- A) Post-streptococcal generalized cutaneous skin desquamation
- B) Kawasaki disease convalescent phase skin reaction
- C) Tinea unguium localized fungal nail infection
- D) Classic hand, foot, and mouth disease✓
💡 Key Takeaway
Onychomadesis is a common, painless late complication of hand, foot, and mouth disease.
Show rationale
This presentation is highly characteristic of a classic hand, foot, and mouth disease sequela. Onychomadesis, or painless proximal nail shedding, is a well-documented late complication that occurs several weeks after the initial enterovirus infection. Post-streptococcal generalized cutaneous skin desquamation typically involves the peeling of the skin on the palms and soles, rather than the isolated shedding of the nail plate. Kawasaki disease convalescent phase skin reaction also causes periungual desquamation of the fingers and toes, but it does not typically cause proximal nail shedding. Tinea unguium localized fungal nail infection presents with thickened, discolored, and brittle nails over a chronic period, rather than acute, painless shedding following a mild febrile rash. Recognizing this delayed presentation prevents unnecessary diagnostic testing and provides reassurance to the parents.
Question 10
68 of 150. A 6-month-old infant is in the clinic for a well-child visit. The infant received Hepatitis B vaccines at birth and at 2 months. The mother asks if the third Hepatitis B dose is required today alongside the other vaccines.
- A) Delay the third Hepatitis B dose until nine months old.
- B) Omit the third Hepatitis B dose because of prior immunity.
- C) Administer the third Hepatitis B dose only if labs indicate.
- D) Administer the third Hepatitis B dose alongside routine infant vaccines.✓
💡 Key Takeaway
The third dose of the Hepatitis B vaccine can be administered at the 6-month well-child visit.
Show rationale
The third dose of the Hepatitis B vaccine is typically administered between 6 and 18 months of age, making it perfectly appropriate to give at the 6-month well-child visit alongside DTaP, Hib, IPV, PCV15, and RV. Delaying the dose until nine months (Option A) is unnecessary and misses a convenient opportunity to ensure complete vaccination coverage. Omitting the dose entirely (Option B) is incorrect, as the primary series requires three doses for long-term immunity. Checking laboratory titers (Option C) is not recommended for healthy infants undergoing the routine immunization schedule.
Question 11
101 of 150. A parent brings a 3-year-old to the clinic on day three of oral dexamethasone for an asthma exacerbation. The parent is highly concerned about the child's extreme hyperactivity and poor sleep. Which of the following is the most appropriate response?
- A) Reassure the parent this is a transient medication effect.✓
- B) Discontinue the dexamethasone and initiate oral amoxicillin therapy immediately.
- C) Refer the child to the emergency department for hypoxia.
- D) Decrease the albuterol dose to reduce the systemic stimulation.
💡 Key Takeaway
Oral corticosteroids frequently cause transient behavioral changes and insomnia in young children.
Show rationale
When evaluating a 3-year-old on day three of oral dexamethasone, it is crucial to recognize that extreme hyperactivity and poor sleep are very common, transient side effects of systemic corticosteroids in young children. Reassuring the parent is the most appropriate action, as these behavioral changes typically resolve quickly once the short steroid burst is completed. Discontinuing the dexamethasone and starting amoxicillin is incorrect because there is no evidence of a bacterial infection, and stopping the steroid prematurely could lead to a relapse of the asthma exacerbation. Referring the child to the emergency department for hypoxia is unwarranted without clinical signs of respiratory distress like tachypnea or cyanosis. Decreasing the albuterol dose is inappropriate because albuterol is necessary for bronchodilation, and the systemic steroid is the far more likely culprit for the behavioral stimulation.
Question 12
103 of 150. A mother reports her 3-week-old infant has progressively worsening forceful emesis over five days but remains eager to feed immediately afterward.
- A) Reassure regarding typical infant gastroesophageal reflux
- B) Recommend a trial of hypoallergenic formula
- C) Assess for a palpable abdominal mass✓
- D) Obtain a stool sample for rotavirus
💡 Key Takeaway
Progressive forceful vomiting in a hungry neonate requires immediate assessment for an anatomical obstruction.
Show rationale
Progressive, forceful (projectile) vomiting in a hungry 3-week-old infant is highly suspicious for pyloric stenosis, necessitating an immediate physical exam to assess for a mass (the "olive"). Reassuring the mother regarding reflux is inappropriate, as reflux is typically effortless. Recommending a formula change delays critical surgical evaluation for a mechanical obstruction. Obtaining a stool sample is indicated for viral gastroenteritis, which presents with diarrhea and poor appetite, not hunger.
Question 13
106 of 150. A 9-month-old infant is actively transitioning to finger foods. The father mentions he plans to offer whole grapes and hot dog rounds at an upcoming family picnic.
- A) Advise cutting the grapes and hot dogs lengthwise first.✓
- B) Recommend peeling the grapes and boiling the hot dogs.
- C) Suggest substituting the hot dogs with whole cherry tomatoes.
- D) Encourage waiting until twelve months to offer finger foods.
💡 Key Takeaway
Round, cylindrical foods must be cut lengthwise to prevent airway occlusion in infants and toddlers.
Show rationale
Whole grapes and round hot dog slices are classic choking hazards for infants and toddlers because their shape perfectly occludes the pediatric airway. Option A is correct because modifying the shape by cutting them lengthwise mitigates the choking risk while allowing the infant to practice self-feeding. Option B is incorrect because peeling and boiling do not change the dangerous cylindrical or spherical shapes. Option C is incorrect because whole cherry tomatoes pose the exact same choking risk as whole grapes. Option D is inappropriate because nine-month-old infants should be actively encouraged to eat safe finger foods to develop fine motor skills.
Question 14
115 of 150. The parents of a healthy term newborn request early discharge at 16 hours of age. The infant has a normal cardiovascular examination and is feeding vigorously. How should the nurse practitioner manage the congenital heart disease screening?
- A) Defer the screening until the first pediatric visit.
- B) Advise the family to remain hospitalized for 24 hours.
- C) Schedule an outpatient screening appointment for the next day.
- D) Perform the screening immediately prior to hospital discharge.✓
💡 Key Takeaway
If a newborn is discharged before 24 hours of age, CCHD screening should occur right before discharge.
Show rationale
The optimal timing for critical congenital heart disease screening is between 24 and 48 hours of age to minimize false positive results related to the normal transition of fetal circulation. However if an infant is scheduled for early discharge before 24 hours of age the screening must be performed immediately prior to discharge. Deferring the screening until the first pediatric visit or scheduling an outpatient appointment is incorrect because the infant could experience sudden cardiovascular collapse at home if a ductal dependent lesion is present. Advising the family to remain hospitalized solely to wait for the 24 hour mark is unnecessary since current guidelines explicitly support screening early if discharge is imminent as long as the family is educated about the slightly higher risk of a false positive result.
Question 15
121 of 150. A 10-year-old child presents to the clinic with severe intercostal retractions, a respiratory rate of 36 breaths per minute, and a peak flow reading of 45% of personal best. According to the asthma action plan, which intervention is indicated for this patient?
- A) Administer albuterol via nebulizer and initiate oral systemic corticosteroid therapy.✓
- B) Administer albuterol via nebulizer and monitor closely for two hours.
- C) Administer albuterol via nebulizer and double the inhaled corticosteroid dose.
- D) Administer albuterol via nebulizer and schedule an urgent follow-up visit.
💡 Key Takeaway
Red zone asthma exacerbations require immediate short-acting bronchodilators and the initiation of systemic corticosteroids.
Show rationale
A peak flow reading of 45% and severe intercostal retractions place this child in the red zone of the asthma action plan, indicating a medical alert and severe exacerbation. Immediate administration of a short-acting bronchodilator and the initiation of oral systemic corticosteroids are required, often alongside transfer to higher-level emergency care. Option B is incorrect because waiting two hours delays necessary systemic anti-inflammatory treatment and potential emergency transfer for a child in severe respiratory distress. Option C is incorrect because doubling the inhaled corticosteroid is insufficient for red zone management and does not provide the rapid systemic effect needed to reduce severe airway inflammation. Option D is incorrect because scheduling a follow-up visit ignores the immediate need for systemic steroids and emergency intervention.