ATI LPN
ATI Pediatrics Practice Questions Questions
Question 1 of 5
A 5-year-old girl presents with abdominal pain and vomiting. CT shows a twisted mesentery. Most likely diagnosis is:
Correct Answer: C
Rationale: Malrotation with volvulus features pain, vomiting, and twisted mesentery, per AAP. A, B, D, E differ in CT.
Question 2 of 5
Most common complication of untreated congenital adrenal hyperplasia is:
Correct Answer: A
Rationale: Adrenal crisis is the most serious complication of untreated CAH due to cortisol deficiency, per AAP (doc p148, Q558).
Question 3 of 5
A newborn girl appears with ambiguous genitalia and a 46,XX karyotype. Labs reveal elevated 17-hydroxyprogesterone. Most likely diagnosis is:
Correct Answer: A
Rationale: CAH fits XX karyotype and elevated 17-OHP, per AAP (doc p149, Q574).
Question 4 of 5
Most common cause of Cushing syndrome in children is:
Correct Answer: C
Rationale: Exogenous steroids are the most common cause of Cushing syndrome in children, per AAP (doc p150, Q590).
Question 5 of 5
A 14-year-old boy appears with tall stature, long limbs, and a heart murmur. Echocardiogram reveals aortic root dilation. Most likely diagnosis is:
Correct Answer: B
Rationale: Marfan syndrome fits tall stature, long limbs, and aortic dilation, per AAP (doc p151, Q606).