Pedia Quizthyroid

PEDIA QUIZ- 2015- DR DOMINGO 1. A goitrous 8-year old female with a BP of 140/60 and a pulse rate of more than 120/min very likely has which of the following? a. Hypothyroidism b. Euthyroid goiter c. Hyperthyroidism d. Peripheral resistance to thyroid hormones 2. The most common cause of hypothyroidism due to dishormonogenesis is a defect in: a. Coupling b. Deiodination c. Organification d. Trapping of iodine 3. A 12-year old boy has a single thyroid nodule which is firm and non-tender. Which of the following procedures would be most helpful in making a diagnosis? a. Ultrasound of the thyroid b. Thyroid function tests c. Thyroglobulin levels d. Fine needle aspiration biopsy 4. A 48-hour old female infant is found to have high TSh levels on screening. What would be the next step in trying to establish a diagnosis? a. Obtain thyroid function tests b. Give thyroid hormone for a therapeutic test c. Measure iodine levels d. Do an RAI scan of the thyroid 5. One of the most common complaints of a child with congenital hypothyroidism is: a. Diarrhea b. Constipation c. Abdominal pain d. Lack of appetite 6. A 1-week old infant develops seizures which do not improve with glucose administration. Blood sugar is 50 mg/dl and calcium is 6 mg/dl. The infant is fullterm and history and PE are otherwise normal. One very likely cause for which a work-up is needed is: a. Hypomagnesemia b. Maternal parathyroid adenoma c. Autoimmune hypoparathyroidism d. Maternal Vitamin D deficiency

7. One of the most common causes of hypocalcemia in the neonate is: a. Maternal malnutrition b. Magnesium given to the mother for toxemia c. Prematurity d. Maternal hyperparathyroidism secondary to parathyroid adenoma 8. The principal regulators of calcium homeostasis are: a. PTH and calcitonin b. PTH and growth hormone c. PTH and calcitriol d. PTH and magnesium 9. Which of the following is the most frequently encountered pediatric endocrine emergency? a. Hypocalcemia b. Thyroid storm c. Adrenal crisis secondary to CAH d. DKA 10. A frequent cause of death among children with DKA due to fluid imbalance is: a. Cerebral edema b. Severe hyperglycemia c. Congestive heart failure d. Renal failure