Pediatrics

A 3-day-old (72 hours of life) male neonate is brought to the pediatric clinic by his parents for worsening skin yellowing and a new rash. He was born at 39 weeks gestation via uncomplicated vaginal delivery to a 26-year-old primigravid woman. His birth weight was 3,300 g. Apgar scores were 8 and 9 at 1 and 5 minutes, respectively. The infant is exclusively breastfed for 10 minutes on a single breast every 4 to 5 hours. The parents report a decrease in wet diapers and noted "brick-red dust" in his diaper this morning. His current weight is 2,930 g, representing an 11.2% decrease from birth weight. Vital signs are normal. Physical examination reveals scleral icterus and jaundice extending to the lower abdomen. Scattered erythematous macules with central yellow pustules are noted on the chest and back, sparing the palms and soles. The neonate is alert, vigorously cries during the examination, and has a normal Moro reflex.

Which of the following is the most appropriate next step in management?

A 2-month-old boy is brought to the clinic for a routine well-child visit. He was born at 39 weeks gestation via an uncomplicated vaginal delivery. His mother has a history of severe Crohn's disease that was well controlled during pregnancy with intravenous infliximab. She received her last infusion of infliximab at 35 weeks gestation. The infant is exclusively breastfed and is gaining weight appropriately. His vital signs and physical examination are unremarkable. The mother asks about the infant's scheduled 2-month immunizations, which typically include the diphtheria, tetanus, and acellular pertussis (DTaP); Haemophilus influenzae type b (Hib); inactivated poliovirus (IPV); pneumococcal conjugate (PCV); and rotavirus vaccines. Which of the following is the most appropriate immunization plan for this patient today?

A group of pediatric patients presents to the outpatient clinic during the spring with various rash illnesses. Based on the distinctive clinical features described below, match each patient's presentation with the most likely diagnosis.

Match each high-risk pediatric patient presentation with the most appropriate specific preventive care or immunization intervention.

Emergency medical services transport a toxic-appearing $3$-year-old male to the trauma bay due to rapidly progressive respiratory distress over the past $6$ hours. The patient has not received any childhood immunizations. He is sitting on his mother's lap, leaning forward with his neck hyperextended, drooling profusely, and exhibiting marked inspiratory stridor. His temperature is $39.6^\circ\text{C}$ ($103.3^\circ\text{F}$), heart rate is $165/\text{min}$, respiratory rate is $48/\text{min}$, and oxygen saturation is $91\%$ on room air. He is highly anxious but responsive. Auscultation reveals transmitted upper airway sounds with no wheezing or crackles in the lower lung fields.

Arrange the following management steps in the most appropriate sequential order for this patient.

A 7-year-old boy is brought to the emergency department by his parents due to a high fever, severe headache, and recurrent vomiting for the past 24 hours. Over the last 2 hours, the parents noticed that he has become increasingly drowsy and is not moving his right arm normally. His temperature is 39.4°C (102.9°F), blood pressure is 110/70 mmHg, heart rate is 115/min, and respiratory rate is 22/min. Physical examination reveals marked nuchal rigidity and right-sided hemiparesis. Fundoscopic examination shows blurring of the optic disc margins bilaterally.

Arrange the following steps in the most appropriate chronological order for the acute management of this patient.

Immediately following an unmonitored spontaneous vaginal delivery at $38$ weeks gestation, a newborn boy exhibits profound respiratory distress. Initial assessment in the delivery room reveals severe retractions, cyanosis, and an oxygen saturation of $74\%$ on room air. His abdomen appears remarkably sunken (scaphoid). Thoracic auscultation demonstrates an absence of breath sounds over the entire left hemithorax, and the cardiac point of maximal impulse is shifted to the right. Arrange the following interventions in the most appropriate chronological order for the management of this patient.

Match each classic clinical description of a benign neonatal skin finding to its correct diagnosis.

A $3$-day-old female infant, born at $35$ weeks and $4$ days gestation via emergency cesarean delivery for non-reassuring fetal heart tones, is evaluated in the neonatal intensive care unit for a newly developed skin eruption. Her mother had prolonged rupture of membranes for $22$ hours prior to delivery, and maternal Group B Streptococcus status was unknown. The infant's APGAR scores were $7$ and $8$ at $1$ and $5$ minutes, respectively. Birth weight was $2450\text{ g}$. She is currently feeding adequately through an orogastric tube and is maintaining oxygen saturations of $98\%$ on room air. Current vital signs are: temperature $37.1^\circ \text{C}$ ($98.8^\circ \text{F}$), heart rate $142/\text{min}$, respiratory rate $44/\text{min}$, and blood pressure $62/40\text{ mm Hg}$. Physical examination reveals a widespread rash consisting of superficial $1$- to $2\text{-mm}$ vesicopustules that strictly lack a surrounding erythematous halo. The lesions are prominent on the forehead, anterior neck, and lower back. Gentle wiping of a ruptured pustule reveals a small, collarette-like scale enclosing a hyperpigmented macule. A complete blood count reveals a leukocyte count of $22,000/\text{mm}^3$ with $55\%$ segmented neutrophils, $8\%$ band neutrophils, and $30\%$ lymphocytes. A Wright-stained smear of the pustular contents demonstrates numerous polymorphonuclear leukocytes but no organisms. Based on this patient's clinical presentation, which of the following is the most appropriate next step in management?

A toddler is evaluated at the pediatric clinic for a health maintenance visit at 15 months of age. His mother reports that he has been doing well since a hospitalization 5 months ago. At that time, he presented with 6 days of high fever, bilateral nonexudative conjunctivitis, erythema of the oral mucosa, and a generalized maculopapular rash. He was successfully treated in the hospital and discharged home. The patient currently takes daily low-dose aspirin and has no other medical conditions. He previously received all routine immunizations up to 6 months of age, but has not received any vaccines since then. His temperature is 37.1 C (98.8 F), blood pressure is 90/55 mm Hg, pulse is 110/min, and respirations are 24/min. Physical examination today is unremarkable. Which of the following is the most appropriate immunization plan for this patient today?

An 8-month-old male infant is evaluated in the pediatric clinic in late January for a 3-day history of nasal congestion, clear rhinorrhea, and a low-grade fever. Over the past 24 hours, he has developed a harsh cough and increased work of breathing. He has no significant past medical history and is fully vaccinated for his age. Vital signs show a temperature of 37.8°C (100.0°F), heart rate of 145/min, respiratory rate of 55/min, and oxygen saturation of 96% on room air. Physical examination reveals an alert, well-perfused infant with mild intercostal retractions, flared nostrils, and diffuse bilateral expiratory wheezes with prolonged expiration. There is no focal consolidation or crackles. Which of the following is the most appropriate next step in the management of this patient?

A 41-week gestation neonate is born via emergency cesarean delivery for prolonged fetal bradycardia. The amniotic fluid is thickly stained with meconium. At birth, the infant is apneic, completely flaccid, and has a heart rate of 70/min. Assuming the infant's condition persistently deteriorates and fails to improve at each standard reassessment interval, arrange the following steps of neonatal resuscitation in the correct chronological sequence of execution according to current guidelines.

An $11$-month-old female infant arrives at the pediatric emergency department during late autumn accompanied by her parents. They report she has had a low-grade fever, severe nasal congestion, and a progressively worsening cough for the past four days. Over the last $12$ hours, she has been unusually lethargic and has completely refused all bottle feedings. Her medical history is notable for severe atopic dermatitis, and her biological father has severe persistent asthma. Vital signs include a temperature of $38.3^\circ\text{C}$ ($100.9^\circ\text{F}$), heart rate of $165/\text{min}$, and respiratory rate of $72/\text{min}$. Oxygen saturation is $88\%$ on room air. Physical examination reveals an infant in significant respiratory distress, demonstrating nasal flaring, head bobbing, and marked subcostal retractions. Lung auscultation reveals widespread fine crackles and high-pitched expiratory wheezes bilaterally. Capillary refill time is $2$ seconds. The patient is immediately placed on high-flow supplemental oxygen, which improves her oxygen saturation to $95\%$. Which of the following is the most appropriate next step in the management of this patient?

Match each pediatric patient scenario involving an infectious exposure or specific risk factor with the most appropriate immediate preventive care intervention or post-exposure prophylaxis.

A 4-year-old girl is brought to the emergency department with a 1-day history of fever and severe right knee pain. She refuses to bear weight on her right leg. Her temperature is 39.0°C (102.2°F), heart rate is 130/min, and blood pressure is 95/60 mm Hg. Physical examination reveals an erythematous, warm, and exquisitely tender right knee with a palpable effusion. Range of motion is severely restricted due to pain. Arrange the following steps in the most appropriate chronological sequence for the diagnosis and management of this patient's suspected septic arthritis.

A mother brings her 12-month-old son to the pediatrician for a scheduled health maintenance examination. He underwent a hepatic transplantation at 8 months of age due to biliary atresia and is currently maintained on an immunosuppressive regimen of oral tacrolimus and mycophenolate mofetil. His vital signs are within normal limits, and the physical examination is unremarkable. His mother reports that he is able to pull himself up to a standing position and cruise along furniture, but she expresses concern because he is not yet walking independently. He uses a neat pincer grasp to eat small pieces of food and speaks three specific words: "mama," "dada," and "ball." Medical records indicate he received all routine childhood immunizations precisely on schedule through his 6-month visit. Which of the following is the most appropriate management regarding this patient's care today?

During a routine well-child evaluation, the parents of a 21-day-old boy express concern regarding a progressive skin eruption on his face that began five days ago. The infant was born at 39 weeks gestation via uncomplicated spontaneous vaginal delivery to a 28-year-old primigravida. His birth weight was 3.4 kg (7 lb 8 oz), and Apgar scores were 8 and 9 at 1 and 5 minutes, respectively. The mother received standard prenatal care, and maternal group B Streptococcus screening was negative. The parents report that the infant is exclusively breastfed, latching well, and stooling normally without any episodes of emesis. He has had no fevers, irritability, or changes in his level of activity. Vital signs today show a rectal temperature of 37.1°C (98.8°F), heart rate of 135/min, and respiratory rate of 40/min. Physical examination reveals an alert, vigorous, and well-hydrated neonate. Skin examination is notable for numerous small, erythematous inflammatory papules and pustules strictly confined to the forehead, nose, and bilateral cheeks. There are no comedones present. The scalp, neck, trunk, and extremities remain clear. Which of the following is the most appropriate next step in management?

A mother brings her $3$-week-old son to the pediatric clinic due to a newly developed facial rash. The infant was delivered at full term without any maternal or fetal complications. He is exclusively breastfed, has normal urine and stool output, and is gaining weight appropriately. The infant's temperature is $37.0^\circ\text{C}$ ($98.6^\circ\text{F}$), pulse is $130/\text{min}$, and respirations are $32/\text{min}$. Physical examination reveals multiple scattered erythematous papules and pustules confined strictly to the cheeks, chin, and forehead. No open or closed comedones are observed. The remainder of the physical examination is unremarkable. Which of the following is the most appropriate next step in management for this patient?

A pediatric clinic is updating its health maintenance protocols to align with the latest American Academy of Pediatrics (AAP) and Centers for Disease Control and Prevention (CDC) guidelines. The clinic director is reviewing the timeline of universal preventive care interventions for healthy, full-term pediatric patients with no significant family history of disease. Arrange the following routine preventive care interventions in chronological order, starting with the intervention recommended at the earliest age.

Match each clinical and radiographic presentation in a newborn with the most likely underlying neonatal respiratory disorder.