ATI RN
Endocrine System Pediatrics Questions
Question 1 of 5
Peak serum concentrations of TSH at birth in full-term infants reach
Correct Answer: D
Rationale: TSH peaks at 60-80 mU/L within hours of birth; 80 (D) is typical.
Question 2 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 3 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 4 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 5 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.