Pediatric Flashcards
7 cards from real Physician Assistant practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Pediatric flashcards as text
A 7-year-old boy has been struggling in school, is frequently out of his seat, and interrupts others. Symptoms are present at home and school. What is the first-line pharmacotherapy?
Answer: Methylphenidate
Stimulant medications such as methylphenidate are first-line pharmacotherapy for ADHD in school-age children.
A 9-month-old is brought in for failure to thrive. Weight is below the 3rd percentile. The child is alert, interactive, and has no dysmorphic features. What is the most common cause?
Answer: Inadequate caloric intake
The most common cause of failure to thrive in infancy is inadequate caloric intake, whether from feeding difficulties, improper formula preparation, or psychosocial issues.
A 14-year-old female presents with primary amenorrhea, short stature, webbed neck, and a wide carrying angle. What is the most likely karyotype?
Answer: 45,X
Turner syndrome (45,X) presents with primary amenorrhea, short stature, webbed neck, and increased carrying angle (cubitus valgus).
A 3-year-old has a 2-day history of bloody diarrhea after attending a petting zoo. Labs show microangiopathic hemolytic anemia, thrombocytopenia, and elevated creatinine. What organism is responsible?
Answer: Shiga toxin-producing E. coli (STEC)
Hemolytic uremic syndrome (HUS) in children is most commonly caused by Shiga toxin-producing E. coli O157:H7, often acquired from contaminated food or animal contact.
Which developmental milestone is expected by 12 months of age?
Answer: Walks independently
Walking independently is a gross motor milestone typically achieved between 9–15 months, with 12 months as the average.
A 6-week-old male presents with projectile non-bilious vomiting after feeds and an olive-shaped mass in the epigastrium. What is the diagnosis?
Answer: Pyloric stenosis
Hypertrophic pyloric stenosis presents in males aged 3–6 weeks with projectile non-bilious vomiting and a palpable pyloric mass (olive), leading to hypochloremic metabolic alkalosis.
A 4-year-old presents with periorbital edema, decreased urine output, and cola-colored urine 2 weeks after a throat infection. Which lab finding is most expected?
Answer: Low C3 complement level
Post-streptococcal glomerulonephritis causes activation of the complement pathway, resulting in low C3 levels along with hematuria and proteinuria.