ATI RN
Endocrine System Pediatrics Questions
Question 1 of 5
A 10-year-old presents with 1 year of polyuria and polydipsia. On voiding cystourethrogram, she is noted to have megacystis and hydroureter. Her most likely diagnosis is
Correct Answer: B
Rationale: Megacystis and hydroureter suggest obstructive uropathy causing polyuria, not central DI or psychogenic causes.
Question 2 of 5
Common features of Graves disease include all of the following EXCEPT
Correct Answer: A
Rationale: Graves disease has a 5:1 female:male ratio, not male:female, making this the exception.
Question 3 of 5
Features of Klinefelter syndrome include all of the following EXCEPT
Correct Answer: C
Rationale: Klinefelter syndrome (XXY) typically causes tall stature, not short stature.
Question 4 of 5
During a routine clinical visit, a healthy asymptomatic 6-year-old boy is found to have fasting blood glucose of 110 mg/dL; he has normal oral glucose tolerance test, no glycosuria, and HgbA1c of 6.4%. This child is MOST likely considered to have
Correct Answer: A
Rationale: Impaired fasting glucose is defined as fasting glucose 100-125 mg/dL with normal glucose tolerance, fitting this case. Normal OGTT rules out impaired glucose tolerance (B) and type 1 DM (D); HgbA1c of 6.4% is below diabetic range (E), and sporadic hyperglycemia (C) is not a standard diagnosis.
Question 5 of 5
Measurement of hemoglobin A1c (HgbA1c) provides a mean for assessing long-term glycemic control for children with diabetes mellitus. In which of the following conditions this measurement is inaccurate for long-term glycemic control?
Correct Answer: D
Rationale: Hemoglobinopathies (e.g., sickle cell disease) alter hemoglobin structure, making HgbA1c unreliable for glycemic control. Other conditions (A, B, C, E) may affect glucose metabolism but not HgbA1c accuracy directly.