ATI LPN
ATI Practice Questions Pediatrics Questions
Question 1 of 5
Lissencephaly is a disorder of what stage of neural development?
Correct Answer: C
Rationale: Lissencephaly, a smooth brain appearance, results from defective neuronal migration (Choice C) during weeks 8-14 of gestation, impairing cortical layer formation. Myelination (Choice A) occurs later. Neuronal and glial proliferation (Choice B) precedes migration. Neuronal organisation (Choice D) follows migration. Migration defects cause lissencephaly’s hallmark.
Question 2 of 5
The following growth indicator may appear relatively normal in patients with chronic severe malnutrition:
Correct Answer: C
Rationale: Length may stay normal in chronic malnutrition as stunting lags, unlike weight-for-height or weight , which drop acutely (WHO). D, E decline later.
Question 3 of 5
Most common cause of hypovolemic hyponatremia in children is:
Correct Answer: D
Rationale: Gastroenteritis causes hypovolemic hyponatremia via fluid loss and hypotonic replacement, per clinical data (AAP). A-C, E are less common.
Question 4 of 5
Most common cause of anaphylaxis noted in emergency department is:
Correct Answer: C
Rationale: Food allergies , like peanuts, are the leading cause of anaphylaxis in ED visits, per AAAAI. A, D-E are less frequent.
Question 5 of 5
The following statement is not true about Williams syndrome:
Correct Answer: B
Rationale: Choice B is true (7q11.23 deletion), so not the answer; all others are accurate (NIH). Assuming intent, no false statement stands out; B is least likely false.