ATI RN
Endocrine System Pediatrics Questions
Question 1 of 5
One of the following is not routinely done in children with suspected hypothyroidism
Correct Answer: A
Rationale: Sonography (A) is not routine; TSH (C) and free T4 (B) are primary tests, with antibodies (D, E) for autoimmune causes.
Question 2 of 5
Type Ia accounts for the majority of patients with pseudohypoparathyroidism (PHP), they have the following skeletal abnormalities EXCEPT
Correct Answer: D
Rationale: Bowing (D) is not a feature of PHP type Ia; others are part of Albright hereditary osteodystrophy.
Question 3 of 5
Patients with mineralocorticoid deficiency can develop the following EXCEPT
Correct Answer: C
Rationale: Mineralocorticoid deficiency causes metabolic acidosis, not alkalosis (C), due to sodium loss and hydrogen retention.
Question 4 of 5
Classic 21-hydroxylase deficiency occurs in approximately 1 in 15,000-20,000 births in most populations. Of affected infants, the salt-losing form constitute about
Correct Answer: D
Rationale: About 70% (D) of 21-hydroxylase deficiency cases are salt-losing.
Question 5 of 5
In primary aldosteronism, one of the following is low
Correct Answer: B
Rationale: Primary aldosteronism causes metabolic alkalosis, lowering serum CO₂ (B) due to HCO₃ retention.