ATI RN
Endocrine System Pediatrics Questions
Question 1 of 5
Retardation of osseous development in congenitally hypothyroid infants can be shown radiographically at birth in approximately
Correct Answer: C
Rationale: About 60% (C) of congenital hypothyroidism cases show delayed bone age at birth.
Question 2 of 5
A painless nodule in the thyroid or in the neck is the usual presentation of childhood thyroid cancer. Of the following, the MOST common site of distant metastasis is
Correct Answer: D
Rationale: Lungs (E) are the most common site of distant metastasis in pediatric thyroid cancer.
Question 3 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 4 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 5 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.